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  • Molecular Sequence Data  (3,676)
  • American Association for the Advancement of Science (AAAS)  (3,676)
  • Springer Science + Business Media
  • American Chemical Society (ACS)
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Keywords
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  • American Association for the Advancement of Science (AAAS)  (3,676)
  • Springer Science + Business Media
  • American Chemical Society (ACS)
  • Nature Publishing Group (NPG)  (463)
Years
  • 1
    Publication Date: 2016-01-23
    Description: Mono-ubiquitination of Fancd2 is essential for repairing DNA interstrand cross-links (ICLs), but the underlying mechanisms are unclear. The Fan1 nuclease, also required for ICL repair, is recruited to ICLs by ubiquitinated (Ub) Fancd2. This could in principle explain how Ub-Fancd2 promotes ICL repair, but we show that recruitment of Fan1 by Ub-Fancd2 is dispensable for ICL repair. Instead, Fan1 recruitment--and activity--restrains DNA replication fork progression and prevents chromosome abnormalities from occurring when DNA replication forks stall, even in the absence of ICLs. Accordingly, Fan1 nuclease-defective knockin mice are cancer-prone. Moreover, we show that a Fan1 variant in high-risk pancreatic cancers abolishes recruitment by Ub-Fancd2 and causes genetic instability without affecting ICL repair. Therefore, Fan1 recruitment enables processing of stalled forks that is essential for genome stability and health.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4770513/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4770513/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lachaud, Christophe -- Moreno, Alberto -- Marchesi, Francesco -- Toth, Rachel -- Blow, J Julian -- Rouse, John -- WT096598MA/Wellcome Trust/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2016 Feb 19;351(6275):846-9. doi: 10.1126/science.aad5634. Epub 2016 Jan 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, College of Life Sciences, Sir James Black Centre, University of Dundee, Dundee DD1 5EH, Scotland, UK. ; Centre for Gene Regulation and Expression, College of Life Sciences, Sir James Black Centre, University of Dundee, Dundee DD1 5EH, Scotland, UK. ; School of Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Bearsden Road, Glasgow G61 1QH, UK. ; Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, College of Life Sciences, Sir James Black Centre, University of Dundee, Dundee DD1 5EH, Scotland, UK. j.rouse@dundee.ac.uk.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26797144" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Chromosome Aberrations ; DNA Repair ; *DNA Replication ; Endodeoxyribonucleases/genetics/*metabolism ; Fanconi Anemia Complementation Group D2 Protein/genetics/*metabolism ; Female ; Gene Knock-In Techniques ; Genetic Predisposition to Disease ; Genomic Instability/*genetics ; Liver Neoplasms/genetics/pathology ; Lung Neoplasms/genetics/pathology ; Lymphoma/genetics/pathology ; Male ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Pancreatic Neoplasms/*genetics ; *Ubiquitination
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  • 2
    Publication Date: 2016-04-02
    Description: The recent rapid spread of Zika virus and its unexpected linkage to birth defects and an autoimmune neurological syndrome have generated worldwide concern. Zika virus is a flavivirus like the dengue, yellow fever, and West Nile viruses. We present the 3.8 angstrom resolution structure of mature Zika virus, determined by cryo-electron microscopy (cryo-EM). The structure of Zika virus is similar to other known flavivirus structures, except for the ~10 amino acids that surround the Asn(154) glycosylation site in each of the 180 envelope glycoproteins that make up the icosahedral shell. The carbohydrate moiety associated with this residue, which is recognizable in the cryo-EM electron density, may function as an attachment site of the virus to host cells. This region varies not only among Zika virus strains but also in other flaviviruses, which suggests that differences in this region may influence virus transmission and disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4845755/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4845755/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sirohi, Devika -- Chen, Zhenguo -- Sun, Lei -- Klose, Thomas -- Pierson, Theodore C -- Rossmann, Michael G -- Kuhn, Richard J -- R01 AI073755/AI/NIAID NIH HHS/ -- R01 AI076331/AI/NIAID NIH HHS/ -- R01AI073755/AI/NIAID NIH HHS/ -- R01AI076331/AI/NIAID NIH HHS/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2016 Apr 22;352(6284):467-70. doi: 10.1126/science.aaf5316. Epub 2016 Mar 31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Markey Center for Structural Biology and Purdue Institute for Inflammation, Immunology and Infectious Disease, Purdue University, West Lafayette, IN 47907, USA. ; Viral Pathogenesis Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27033547" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cryoelectron Microscopy ; Glycosylation ; Humans ; Molecular Sequence Data ; Protein Structure, Tertiary ; Viral Envelope Proteins/chemistry/ultrastructure ; Viral Matrix Proteins/chemistry/ultrastructure ; Zika Virus/*chemistry/*ultrastructure
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  • 3
    Publication Date: 2016-04-16
    Description: The nuclear pore complex (NPC) controls the transport of macromolecules between the nucleus and cytoplasm, but its molecular architecture has thus far remained poorly defined. We biochemically reconstituted NPC core protomers and elucidated the underlying protein-protein interaction network. Flexible linker sequences, rather than interactions between the structured core scaffold nucleoporins, mediate the assembly of the inner ring complex and its attachment to the NPC coat. X-ray crystallographic analysis of these scaffold nucleoporins revealed the molecular details of their interactions with the flexible linker sequences and enabled construction of full-length atomic structures. By docking these structures into the cryoelectron tomographic reconstruction of the intact human NPC and validating their placement with our nucleoporin interactome, we built a composite structure of the NPC symmetric core that contains ~320,000 residues and accounts for ~56 megadaltons of the NPC's structured mass. Our approach provides a paradigm for the structure determination of similarly complex macromolecular assemblies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lin, Daniel H -- Stuwe, Tobias -- Schilbach, Sandra -- Rundlet, Emily J -- Perriches, Thibaud -- Mobbs, George -- Fan, Yanbin -- Thierbach, Karsten -- Huber, Ferdinand M -- Collins, Leslie N -- Davenport, Andrew M -- Jeon, Young E -- Hoelz, Andre -- 5 T32 GM07616/GM/NIGMS NIH HHS/ -- ACB-12002/PHS HHS/ -- AGM-12006/PHS HHS/ -- R01 GM111461/GM/NIGMS NIH HHS/ -- R01-GM111461/GM/NIGMS NIH HHS/ -- T32 GM007616/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2016 Apr 15;352(6283):aaf1015. doi: 10.1126/science.aaf1015. Epub 2016 Apr 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA. ; Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA. hoelz@caltech.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27081075" target="_blank"〉PubMed〈/a〉
    Keywords: Active Transport, Cell Nucleus ; Amino Acid Sequence ; Cryoelectron Microscopy ; Crystallography, X-Ray ; Cytoplasm/metabolism ; Electron Microscope Tomography ; Fungal Proteins/chemistry/genetics/metabolism ; Humans ; Molecular Sequence Data ; Nuclear Pore/chemistry/*metabolism/*ultrastructure ; Nuclear Pore Complex Proteins/chemistry/genetics/*metabolism ; *Protein Interaction Maps ; Protein Structure, Tertiary ; Protein Subunits/chemistry/genetics/metabolism
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  • 4
    Publication Date: 2016-02-27
    Description: Ebola virus disease in humans is highly lethal, with case fatality rates ranging from 25 to 90%. There is no licensed treatment or vaccine against the virus, underscoring the need for efficacious countermeasures. We ascertained that a human survivor of the 1995 Kikwit Ebola virus disease outbreak maintained circulating antibodies against the Ebola virus surface glycoprotein for more than a decade after infection. From this survivor we isolated monoclonal antibodies (mAbs) that neutralize recent and previous outbreak variants of Ebola virus and mediate antibody-dependent cell-mediated cytotoxicity in vitro. Strikingly, monotherapy with mAb114 protected macaques when given as late as 5 days after challenge. Treatment with a single human mAb suggests that a simplified therapeutic strategy for human Ebola infection may be possible.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Corti, Davide -- Misasi, John -- Mulangu, Sabue -- Stanley, Daphne A -- Kanekiyo, Masaru -- Wollen, Suzanne -- Ploquin, Aurelie -- Doria-Rose, Nicole A -- Staupe, Ryan P -- Bailey, Michael -- Shi, Wei -- Choe, Misook -- Marcus, Hadar -- Thompson, Emily A -- Cagigi, Alberto -- Silacci, Chiara -- Fernandez-Rodriguez, Blanca -- Perez, Laurent -- Sallusto, Federica -- Vanzetta, Fabrizia -- Agatic, Gloria -- Cameroni, Elisabetta -- Kisalu, Neville -- Gordon, Ingelise -- Ledgerwood, Julie E -- Mascola, John R -- Graham, Barney S -- Muyembe-Tamfun, Jean-Jacques -- Trefry, John C -- Lanzavecchia, Antonio -- Sullivan, Nancy J -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2016 Mar 18;351(6279):1339-42. doi: 10.1126/science.aad5224. Epub 2016 Feb 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Research in Biomedicine, Universita della Svizzera Italiana, CH-6500 Bellinzona, Switzerland. Humabs BioMed SA, 6500 Bellinzona, Switzerland. ; Vaccine Research Center, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892, USA. ; U.S. Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD 21702, USA. ; Institute for Research in Biomedicine, Universita della Svizzera Italiana, CH-6500 Bellinzona, Switzerland. ; Humabs BioMed SA, 6500 Bellinzona, Switzerland. ; National Institute for Biomedical Research, National Laboratory of Public Health, Kinshasa B.P. 1197, Democratic Republic of the Congo. ; Institute for Research in Biomedicine, Universita della Svizzera Italiana, CH-6500 Bellinzona, Switzerland. Institute of Microbiology, ETH Zurich, CH-8093 Zurich, Switzerland. ; Vaccine Research Center, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892, USA. njsull@mail.nih.gov.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26917593" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Antibodies, Monoclonal/*administration & dosage/immunology/isolation & ; purification ; Antibodies, Neutralizing/*administration & dosage/immunology/isolation & ; purification ; Antibodies, Viral/*administration & dosage/immunology/isolation & purification ; Clinical Trials as Topic ; Disease Outbreaks ; Ebolavirus/*immunology ; Female ; Hemorrhagic Fever, Ebola/epidemiology/*prevention & control ; Humans ; Macaca ; Male ; Molecular Sequence Data ; Survivors
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  • 5
    Publication Date: 2016-02-26
    Description: T cell-mediated destruction of insulin-producing beta cells in the pancreas causes type 1 diabetes (T1D). CD4 T cell responses play a central role in beta cell destruction, but the identity of the epitopes recognized by pathogenic CD4 T cells remains unknown. We found that diabetes-inducing CD4 T cell clones isolated from nonobese diabetic mice recognize epitopes formed by covalent cross-linking of proinsulin peptides to other peptides present in beta cell secretory granules. These hybrid insulin peptides (HIPs) are antigenic for CD4 T cells and can be detected by mass spectrometry in beta cells. CD4 T cells from the residual pancreatic islets of two organ donors who had T1D also recognize HIPs. Autoreactive T cells targeting hybrid peptides may explain how immune tolerance is broken in T1D.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Delong, Thomas -- Wiles, Timothy A -- Baker, Rocky L -- Bradley, Brenda -- Barbour, Gene -- Reisdorph, Richard -- Armstrong, Michael -- Powell, Roger L -- Reisdorph, Nichole -- Kumar, Nitesh -- Elso, Colleen M -- DeNicola, Megan -- Bottino, Rita -- Powers, Alvin C -- Harlan, David M -- Kent, Sally C -- Mannering, Stuart I -- Haskins, Kathryn -- 1K01DK094941/DK/NIDDK NIH HHS/ -- 1R01DK081166/DK/NIDDK NIH HHS/ -- 5U01DK89572/DK/NIDDK NIH HHS/ -- DK104211/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2016 Feb 12;351(6274):711-4. doi: 10.1126/science.aad2791.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology and Microbiology, University of Colorado School of Medicine, Denver, Anschutz Medical Campus, Aurora, CO 80045, USA. thomas.delong@ucdenver.edu katie.haskins@ucdenver.edu. ; Department of Immunology and Microbiology, University of Colorado School of Medicine, Denver, Anschutz Medical Campus, Aurora, CO 80045, USA. ; Pharmaceutical Sciences, University of Colorado School of Medicine, Aurora, CO 80045, USA. ; Immunology and Diabetes Unit, St. Vincent's Institute of Medical Research, 9 Princes Street, Fitzroy, Victoria 3065, Australia. ; Department of Medicine, Diabetes Division, Diabetes Center of Excellence, University of Massachusetts Medical School, Worcester, MA, USA. ; Institute of Cellular Therapeutics, Allegheny-Singer Research Institute, Allegheny Health Network, Pittsburgh, PA, USA. ; Division of Diabetes, Endocrinology, and Metabolism, Department of Medicine, and Department of Molecular Physiology and Biophysics, Vanderbilt University Medical Center, Nashville, TN, USA. VA Tennessee Valley Healthcare System, Nashville, TN, USA. ; Immunology and Diabetes Unit, St. Vincent's Institute of Medical Research, 9 Princes Street, Fitzroy, Victoria 3065, Australia. University of Melbourne, Department of Medicine, St. Vincent's Hospital, Fitzroy, Victoria 3065, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26912858" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; C-Peptide/chemistry/*immunology ; CD4-Positive T-Lymphocytes/*immunology ; Clone Cells ; Diabetes Mellitus, Experimental/*immunology/pathology ; Diabetes Mellitus, Type 1/*immunology/pathology ; Epitopes/*immunology ; Immune Tolerance ; Insulin-Secreting Cells/*immunology/pathology ; Mice ; Mice, Inbred NOD ; Molecular Sequence Data ; Peptides/chemistry/immunology
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  • 6
    Publication Date: 2016-01-28
    Description: Mitochondria undergo fragmentation in response to electron transport chain (ETC) poisons and mitochondrial DNA-linked disease mutations, yet how these stimuli mechanistically connect to the mitochondrial fission and fusion machinery is poorly understood. We found that the energy-sensing adenosine monophosphate (AMP)-activated protein kinase (AMPK) is genetically required for cells to undergo rapid mitochondrial fragmentation after treatment with ETC inhibitors. Moreover, direct pharmacological activation of AMPK was sufficient to rapidly promote mitochondrial fragmentation even in the absence of mitochondrial stress. A screen for substrates of AMPK identified mitochondrial fission factor (MFF), a mitochondrial outer-membrane receptor for DRP1, the cytoplasmic guanosine triphosphatase that catalyzes mitochondrial fission. Nonphosphorylatable and phosphomimetic alleles of the AMPK sites in MFF revealed that it is a key effector of AMPK-mediated mitochondrial fission.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Toyama, Erin Quan -- Herzig, Sebastien -- Courchet, Julien -- Lewis, Tommy L Jr -- Loson, Oliver C -- Hellberg, Kristina -- Young, Nathan P -- Chen, Hsiuchen -- Polleux, Franck -- Chan, David C -- Shaw, Reuben J -- K99 NS091526/NS/NINDS NIH HHS/ -- K99NS091526/NS/NINDS NIH HHS/ -- P01 CA120964/CA/NCI NIH HHS/ -- P30 CA014195/CA/NCI NIH HHS/ -- R01CA172229/CA/NCI NIH HHS/ -- R01DK080425/DK/NIDDK NIH HHS/ -- R01GM062967/GM/NIGMS NIH HHS/ -- R01GM110039/GM/NIGMS NIH HHS/ -- R01NS089456/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2016 Jan 15;351(6270):275-81. doi: 10.1126/science.aab4138.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular and Cell Biology Laboratory and Howard Hughes Medical Institute, Salk Institute for Biological Studies, La Jolla, CA 92037, USA. ; Department of Neuroscience, Zuckerman Mind Brain Behavior Institute and Kavli Institute for Brain Science, Columbia University, New York, NY 10032, USA. ; Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA. ; Molecular and Cell Biology Laboratory and Howard Hughes Medical Institute, Salk Institute for Biological Studies, La Jolla, CA 92037, USA. shaw@salk.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26816379" target="_blank"〉PubMed〈/a〉
    Keywords: AMP-Activated Protein Kinases/chemistry/genetics/*metabolism ; Adenosine Monophosphate/metabolism ; Amino Acid Motifs ; Cell Line, Tumor ; Cytoplasm/enzymology ; Dactinomycin/analogs & derivatives/pharmacology ; *Energy Metabolism ; Enzyme Activation ; GTP Phosphohydrolases/genetics/metabolism ; Humans ; Microtubule-Associated Proteins/genetics/metabolism ; Mitochondria/drug effects/enzymology/*physiology ; *Mitochondrial Dynamics ; Mitochondrial Proteins/genetics/metabolism ; Molecular Sequence Data ; Rotenone/pharmacology ; *Stress, Physiological
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  • 7
    Publication Date: 2016-03-26
    Description: Brazil has experienced an unprecedented epidemic of Zika virus (ZIKV), with ~30,000 cases reported to date. ZIKV was first detected in Brazil in May 2015, and cases of microcephaly potentially associated with ZIKV infection were identified in November 2015. We performed next-generation sequencing to generate seven Brazilian ZIKV genomes sampled from four self-limited cases, one blood donor, one fatal adult case, and one newborn with microcephaly and congenital malformations. Results of phylogenetic and molecular clock analyses show a single introduction of ZIKV into the Americas, which we estimated to have occurred between May and December 2013, more than 12 months before the detection of ZIKV in Brazil. The estimated date of origin coincides with an increase in air passengers to Brazil from ZIKV-endemic areas, as well as with reported outbreaks in the Pacific Islands. ZIKV genomes from Brazil are phylogenetically interspersed with those from other South American and Caribbean countries. Mapping mutations onto existing structural models revealed the context of viral amino acid changes present in the outbreak lineage; however, no shared amino acid changes were found among the three currently available virus genomes from microcephaly cases. Municipality-level incidence data indicate that reports of suspected microcephaly in Brazil best correlate with ZIKV incidence around week 17 of pregnancy, although this correlation does not demonstrate causation. Our genetic description and analysis of ZIKV isolates in Brazil provide a baseline for future studies of the evolution and molecular epidemiology of this emerging virus in the Americas.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Faria, Nuno Rodrigues -- Azevedo, Raimunda do Socorro da Silva -- Kraemer, Moritz U G -- Souza, Renato -- Cunha, Mariana Sequetin -- Hill, Sarah C -- Theze, Julien -- Bonsall, Michael B -- Bowden, Thomas A -- Rissanen, Ilona -- Rocco, Iray Maria -- Nogueira, Juliana Silva -- Maeda, Adriana Yurika -- Vasami, Fernanda Giseli da Silva -- Macedo, Fernando Luiz de Lima -- Suzuki, Akemi -- Rodrigues, Sueli Guerreiro -- Cruz, Ana Cecilia Ribeiro -- Nunes, Bruno Tardeli -- Medeiros, Daniele Barbosa de Almeida -- Rodrigues, Daniela Sueli Guerreiro -- Nunes Queiroz, Alice Louize -- da Silva, Eliana Vieira Pinto -- Henriques, Daniele Freitas -- Travassos da Rosa, Elisabeth Salbe -- de Oliveira, Consuelo Silva -- Martins, Livia Caricio -- Vasconcelos, Helena Baldez -- Casseb, Livia Medeiros Neves -- Simith, Darlene de Brito -- Messina, Jane P -- Abade, Leandro -- Lourenco, Jose -- Carlos Junior Alcantara, Luiz -- de Lima, Maricelia Maia -- Giovanetti, Marta -- Hay, Simon I -- de Oliveira, Rodrigo Santos -- Lemos, Poliana da Silva -- de Oliveira, Layanna Freitas -- de Lima, Clayton Pereira Silva -- da Silva, Sandro Patroca -- de Vasconcelos, Janaina Mota -- Franco, Luciano -- Cardoso, Jedson Ferreira -- Vianez-Junior, Joao Lidio da Silva Goncalves -- Mir, Daiana -- Bello, Gonzalo -- Delatorre, Edson -- Khan, Kamran -- Creatore, Marisa -- Coelho, Giovanini Evelim -- de Oliveira, Wanderson Kleber -- Tesh, Robert -- Pybus, Oliver G -- Nunes, Marcio R T -- Vasconcelos, Pedro F C -- 090532/Z/09/Z/Wellcome Trust/United Kingdom -- 095066/Wellcome Trust/United Kingdom -- 102427/Wellcome Trust/United Kingdom -- MR/L009528/1/Medical Research Council/United Kingdom -- R24 AT 120942/AT/NCCIH NIH HHS/ -- New York, N.Y. -- Science. 2016 Apr 15;352(6283):345-9. doi: 10.1126/science.aaf5036. Epub 2016 Mar 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Technological Innovation, Evandro Chagas Institute, Ministry of Health, Ananindeua, PA 67030-000, Brazil. Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK. ; Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ministry of Health, Ananindeua, Para State, Brazil. ; Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK. ; Instituto Adolfo Lutz, University of Sao Paulo, Sao Paulo, Brazil. ; Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK. ; Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK. Metabiota, San Francisco, CA 94104, USA. ; Oswaldo Cruz Foundation (FIOCRUZ), Salvador, Bahia, Brazil. ; Centre of Post Graduation in Collective Health, Department of Health, Universidade Estadual de Feira de Santana, Feira de Santana, Bahia, Brazil. ; Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA 98121, USA. Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK. ; Center for Technological Innovation, Evandro Chagas Institute, Ministry of Health, Ananindeua, PA 67030-000, Brazil. ; Laboratorio de AIDS and Imunologia Molecular, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil. ; Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada. Department of Medicine, Division of Infectious Diseases, University of Toronto, Toronto, Ontario, Canada. ; Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada. ; Brazilian Ministry of Health, Brasilia, Brazil. ; Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA. ; Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK. Metabiota, San Francisco, CA 94104, USA. oliver.pybus@zoo.ox.ac.uk marcionunesbrasil@yahoo.com.br pedrovasconcelos@iec.pa.gov.br. ; Center for Technological Innovation, Evandro Chagas Institute, Ministry of Health, Ananindeua, PA 67030-000, Brazil. Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA. oliver.pybus@zoo.ox.ac.uk marcionunesbrasil@yahoo.com.br pedrovasconcelos@iec.pa.gov.br. ; Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ministry of Health, Ananindeua, Para State, Brazil. oliver.pybus@zoo.ox.ac.uk marcionunesbrasil@yahoo.com.br pedrovasconcelos@iec.pa.gov.br.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27013429" target="_blank"〉PubMed〈/a〉
    Keywords: Aedes/virology ; Americas/epidemiology ; Animals ; *Disease Outbreaks ; Female ; Genome, Viral/genetics ; Humans ; Incidence ; Insect Vectors/virology ; Microcephaly/*epidemiology/virology ; Molecular Epidemiology ; Molecular Sequence Data ; Mutation ; Pacific Islands/epidemiology ; Phylogeny ; Pregnancy ; RNA, Viral/genetics ; Sequence Analysis, RNA ; Travel ; Zika Virus/classification/*genetics/isolation & purification ; Zika Virus Infection/*epidemiology/transmission/*virology
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  • 8
    Publication Date: 2016-03-12
    Description: Poly(ethylene terephthalate) (PET) is used extensively worldwide in plastic products, and its accumulation in the environment has become a global concern. Because the ability to enzymatically degrade PET has been thought to be limited to a few fungal species, biodegradation is not yet a viable remediation or recycling strategy. By screening natural microbial communities exposed to PET in the environment, we isolated a novel bacterium, Ideonella sakaiensis 201-F6, that is able to use PET as its major energy and carbon source. When grown on PET, this strain produces two enzymes capable of hydrolyzing PET and the reaction intermediate, mono(2-hydroxyethyl) terephthalic acid. Both enzymes are required to enzymatically convert PET efficiently into its two environmentally benign monomers, terephthalic acid and ethylene glycol.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yoshida, Shosuke -- Hiraga, Kazumi -- Takehana, Toshihiko -- Taniguchi, Ikuo -- Yamaji, Hironao -- Maeda, Yasuhito -- Toyohara, Kiyotsuna -- Miyamoto, Kenji -- Kimura, Yoshiharu -- Oda, Kohei -- New York, N.Y. -- Science. 2016 Mar 11;351(6278):1196-9. doi: 10.1126/science.aad6359.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Applied Biology, Faculty of Textile Science, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan. Department of Biosciences and Informatics, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan. ; Department of Applied Biology, Faculty of Textile Science, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan. ; Life Science Materials Laboratory, ADEKA, 7-2-34 Higashiogu, Arakawa-ku, Tokyo 116-8553, Japan. ; Department of Polymer Science, Faculty of Textile Science, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan. ; Ecology-Related Material Group Innovation Research Institute, Teijin, Hinode-cho 2-1, Iwakuni, Yamaguchi 740-8511, Japan. ; Department of Biosciences and Informatics, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26965627" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Betaproteobacteria/*enzymology ; Environmental Restoration and Remediation ; Enzymes/classification/genetics/metabolism ; Hydrolysis ; Microbial Consortia ; Molecular Sequence Data ; Phthalic Acids/metabolism ; Phylogeny ; Plastics/*metabolism ; Polyethylene Terephthalates/*metabolism ; Recycling
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  • 9
    Publication Date: 2016-02-06
    Description: SH3 and multiple ankyrin repeat domains 3 (SHANK3) haploinsufficiency is causative for the neurological features of Phelan-McDermid syndrome (PMDS), including a high risk of autism spectrum disorder (ASD). We used unbiased, quantitative proteomics to identify changes in the phosphoproteome of Shank3-deficient neurons. Down-regulation of protein kinase B (PKB/Akt)-mammalian target of rapamycin complex 1 (mTORC1) signaling resulted from enhanced phosphorylation and activation of serine/threonine protein phosphatase 2A (PP2A) regulatory subunit, B56beta, due to increased steady-state levels of its kinase, Cdc2-like kinase 2 (CLK2). Pharmacological and genetic activation of Akt or inhibition of CLK2 relieved synaptic deficits in Shank3-deficient and PMDS patient-derived neurons. CLK2 inhibition also restored normal sociability in a Shank3-deficient mouse model. Our study thereby provides a novel mechanistic and potentially therapeutic understanding of deregulated signaling downstream of Shank3 deficiency.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bidinosti, Michael -- Botta, Paolo -- Kruttner, Sebastian -- Proenca, Catia C -- Stoehr, Natacha -- Bernhard, Mario -- Fruh, Isabelle -- Mueller, Matthias -- Bonenfant, Debora -- Voshol, Hans -- Carbone, Walter -- Neal, Sarah J -- McTighe, Stephanie M -- Roma, Guglielmo -- Dolmetsch, Ricardo E -- Porter, Jeffrey A -- Caroni, Pico -- Bouwmeester, Tewis -- Luthi, Andreas -- Galimberti, Ivan -- New York, N.Y. -- Science. 2016 Mar 11;351(6278):1199-203. doi: 10.1126/science.aad5487. Epub 2016 Feb 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Developmental Molecular Pathways, Novartis Institutes for Biomedical Research, Basel, Switzerland. ; Friedrich Miescher Institute, Basel, Switzerland. ; Analytical Sciences and Imaging, Novartis Institutes for Biomedical Research, Basel, Switzerland. ; Neuroscience, Novartis Institutes for Biomedical Research, Cambridge, USA. ; Developmental Molecular Pathways, Novartis Institutes for Biomedical Research, Basel, Switzerland. ivan.galimberti@novartis.com.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26847545" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Autism Spectrum Disorder/*drug therapy/enzymology/genetics ; Chromosome Deletion ; Chromosome Disorders/genetics ; Chromosomes, Human, Pair 22/genetics ; Disease Models, Animal ; Down-Regulation ; Gene Knockdown Techniques ; Humans ; Insulin-Like Growth Factor I/metabolism ; Mice ; Molecular Sequence Data ; Multiprotein Complexes/metabolism ; Nerve Tissue Proteins/*genetics ; Neurons/enzymology ; Phosphorylation ; Protein Phosphatase 2/metabolism ; Protein-Serine-Threonine Kinases/*antagonists & inhibitors/metabolism ; Protein-Tyrosine Kinases/*antagonists & inhibitors/metabolism ; Proteomics ; Proto-Oncogene Proteins c-akt/genetics/metabolism ; Rats ; Signal Transduction ; TOR Serine-Threonine Kinases/metabolism
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  • 10
    Publication Date: 2016-03-26
    Description: Induction of broadly neutralizing antibodies (bnAbs) is a major HIV vaccine goal. Germline-targeting immunogens aim to initiate bnAb induction by activating bnAb germline precursor B cells. Critical unmet challenges are to determine whether bnAb precursor naive B cells bind germline-targeting immunogens and occur at sufficient frequency in humans for reliable vaccine responses. Using deep mutational scanning and multitarget optimization, we developed a germline-targeting immunogen (eOD-GT8) for diverse VRC01-class bnAbs. We then used the immunogen to isolate VRC01-class precursor naive B cells from HIV-uninfected donors. Frequencies of true VRC01-class precursors, their structures, and their eOD-GT8 affinities support this immunogen as a candidate human vaccine prime. These methods could be applied to germline targeting for other classes of HIV bnAbs and for Abs to other pathogens.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4872700/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4872700/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jardine, Joseph G -- Kulp, Daniel W -- Havenar-Daughton, Colin -- Sarkar, Anita -- Briney, Bryan -- Sok, Devin -- Sesterhenn, Fabian -- Ereno-Orbea, June -- Kalyuzhniy, Oleksandr -- Deresa, Isaiah -- Hu, Xiaozhen -- Spencer, Skye -- Jones, Meaghan -- Georgeson, Erik -- Adachi, Yumiko -- Kubitz, Michael -- deCamp, Allan C -- Julien, Jean-Philippe -- Wilson, Ian A -- Burton, Dennis R -- Crotty, Shane -- Schief, William R -- P01 AI094419/AI/NIAID NIH HHS/ -- P01 AI110657/AI/NIAID NIH HHS/ -- P41GM103393/GM/NIGMS NIH HHS/ -- R01 AI084817/AI/NIAID NIH HHS/ -- UM1 AI100663/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2016 Mar 25;351(6280):1458-63. doi: 10.1126/science.aad9195.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA 92037, USA. IAVI Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, CA 92037, USA. Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery, The Scripps Research Institute, La Jolla, CA 92037, USA. ; Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery, The Scripps Research Institute, La Jolla, CA 92037, USA. Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037, USA. ; IAVI Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, CA 92037, USA. Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery, The Scripps Research Institute, La Jolla, CA 92037, USA. Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA. ; Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA 92037, USA. ; Program in Molecular Structure and Function, Hospital for Sick Children Research Institute, Toronto, Ontario M5G 0A4, Canada. ; Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA 92037, USA. Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery, The Scripps Research Institute, La Jolla, CA 92037, USA. ; Vaccine and Infectious Disease Division, Statistical Center for HIV/AIDS Research and Prevention (SCHARP), Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA. ; IAVI Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, CA 92037, USA. Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery, The Scripps Research Institute, La Jolla, CA 92037, USA. Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA. Program in Molecular Structure and Function, Hospital for Sick Children Research Institute, Toronto, Ontario M5G 0A4, Canada. Departments of Biochemistry and Immunology, University of Toronto, Toronto, Ontario M5S 1A8, Canada. ; IAVI Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, CA 92037, USA. Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery, The Scripps Research Institute, La Jolla, CA 92037, USA. Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA. Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037, USA. ; Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA 92037, USA. IAVI Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, CA 92037, USA. Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery, The Scripps Research Institute, La Jolla, CA 92037, USA. Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02129, USA. ; Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery, The Scripps Research Institute, La Jolla, CA 92037, USA. Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037, USA. Division of Infectious Diseases, Department of Medicine, University of California San Diego School of Medicine, La Jolla, CA, USA. schief@scripps.edu shane@lji.org. ; Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA 92037, USA. IAVI Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, CA 92037, USA. Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery, The Scripps Research Institute, La Jolla, CA 92037, USA. Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02129, USA. schief@scripps.edu shane@lji.org.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27013733" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Vaccines/*immunology ; Amino Acid Sequence ; Antibodies, Monoclonal/chemistry/*immunology/isolation & purification ; Antibodies, Neutralizing/chemistry/*immunology/isolation & purification ; Antibody Affinity ; B-Lymphocytes/immunology ; Cell Separation ; Combinatorial Chemistry Techniques ; Epitopes, B-Lymphocyte/chemistry/genetics/*immunology ; Germ Cells/*immunology ; HIV Antibodies/chemistry/*immunology/isolation & purification ; HIV-1/*immunology ; Humans ; Molecular Sequence Data ; Mutation ; Peptide Library ; Precursor Cells, B-Lymphoid/*immunology ; Protein Conformation
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  • 11
    Publication Date: 2016-04-02
    Description: Recent studies have implicated long noncoding RNAs (lncRNAs) as regulators of many important biological processes. Here we report on the identification and characterization of a lncRNA, lnc13, that harbors a celiac disease-associated haplotype block and represses expression of certain inflammatory genes under homeostatic conditions. Lnc13 regulates gene expression by binding to hnRNPD, a member of a family of ubiquitously expressed heterogeneous nuclear ribonucleoproteins (hnRNPs). Upon stimulation, lnc13 levels are reduced, thereby allowing increased expression of the repressed genes. Lnc13 levels are significantly decreased in small intestinal biopsy samples from patients with celiac disease, which suggests that down-regulation of lnc13 may contribute to the inflammation seen in this disease. Furthermore, the lnc13 disease-associated variant binds hnRNPD less efficiently than its wild-type counterpart, thus helping to explain how these single-nucleotide polymorphisms contribute to celiac disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Castellanos-Rubio, Ainara -- Fernandez-Jimenez, Nora -- Kratchmarov, Radomir -- Luo, Xiaobing -- Bhagat, Govind -- Green, Peter H R -- Schneider, Robert -- Kiledjian, Megerditch -- Bilbao, Jose Ramon -- Ghosh, Sankar -- R01-AI093985/AI/NIAID NIH HHS/ -- R01-DK102180/DK/NIDDK NIH HHS/ -- R01-GM067005/GM/NIGMS NIH HHS/ -- R37-AI33443/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2016 Apr 1;352(6281):91-5. doi: 10.1126/science.aad0467.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, Columbia University, College of Physicians and Surgeons, New York, NY 10032, USA. ; Department of Genetics, Physical Anthropology, and Animal Physiology, University of the Basque Country (UPV-EHU), BioCruces Research Institute, Leioa 48940, Basque Country, Spain. ; Department of Pathology and Cell Biology, Columbia University, College of Physicians and Surgeons, New York, NY 10032, USA. ; Center for Celiac Disease, Department of Medicine, Columbia University, College of Physicians and Surgeons, New York, NY 10032, USA. Alexandria Center for Life Sciences, New York University School of Medicine, New York, NY 10016, USA. ; Alexandria Center for Life Sciences, New York University School of Medicine, New York, NY 10016, USA. ; Department of Cell Biology and Neuroscience, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA. ; Department of Microbiology and Immunology, Columbia University, College of Physicians and Surgeons, New York, NY 10032, USA. sg2715@columbia.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27034373" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Celiac Disease/*genetics/pathology ; Down-Regulation ; Gene Expression Regulation ; *Genetic Predisposition to Disease ; Haplotypes ; Heterogeneous-Nuclear Ribonucleoproteins/genetics ; Humans ; Inflammation/*genetics ; Mice ; Molecular Sequence Data ; Polymorphism, Single Nucleotide ; RNA, Long Noncoding/*genetics
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  • 12
    Publication Date: 2016-02-26
    Description: The oxidation of methane with sulfate is an important microbial metabolism in the global carbon cycle. In marine methane seeps, this process is mediated by consortia of anaerobic methanotrophic archaea (ANME) that live in syntrophy with sulfate-reducing bacteria (SRB). The underlying interdependencies within this uncultured symbiotic partnership are poorly understood. We used a combination of rate measurements and single-cell stable isotope probing to demonstrate that ANME in deep-sea sediments can be catabolically and anabolically decoupled from their syntrophic SRB partners using soluble artificial oxidants. The ANME still sustain high rates of methane oxidation in the absence of sulfate as the terminal oxidant, lending support to the hypothesis that interspecies extracellular electron transfer is the syntrophic mechanism for the anaerobic oxidation of methane.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scheller, Silvan -- Yu, Hang -- Chadwick, Grayson L -- McGlynn, Shawn E -- Orphan, Victoria J -- New York, N.Y. -- Science. 2016 Feb 12;351(6274):703-7. doi: 10.1126/science.aad7154.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26912857" target="_blank"〉PubMed〈/a〉
    Keywords: Anaerobiosis ; *Carbon Cycle ; Electron Transport ; Geologic Sediments/microbiology ; Methane/*metabolism ; Methanosarcinales/classification/genetics/*metabolism ; Molecular Sequence Data ; Oxidation-Reduction ; Phylogeny ; RNA, Archaeal/classification/genetics ; Seawater/microbiology ; Sulfates/*metabolism ; Sulfur-Reducing Bacteria/metabolism
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  • 13
    Publication Date: 2015-05-23
    Description: Sex determination in the mosquito Aedes aegypti is governed by a dominant male-determining factor (M factor) located within a Y chromosome-like region called the M locus. Here, we show that an M-locus gene, Nix, functions as an M factor in A. aegypti. Nix exhibits persistent M linkage and early embryonic expression, two characteristics required of an M factor. Nix knockout with clustered regularly interspaced short palindromic repeats (CRISPR)-Cas9 resulted in largely feminized genetic males and the production of female isoforms of two key regulators of sexual differentiation: doublesex and fruitless. Ectopic expression of Nix resulted in genetic females with nearly complete male genitalia. Thus, Nix is both required and sufficient to initiate male development. This study provides a foundation for mosquito control strategies that convert female mosquitoes into harmless males.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hall, Andrew Brantley -- Basu, Sanjay -- Jiang, Xiaofang -- Qi, Yumin -- Timoshevskiy, Vladimir A -- Biedler, James K -- Sharakhova, Maria V -- Elahi, Rubayet -- Anderson, Michelle A E -- Chen, Xiao-Guang -- Sharakhov, Igor V -- Adelman, Zach N -- Tu, Zhijian -- AI113643/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2015 Jun 12;348(6240):1268-70. doi: 10.1126/science.aaa2850. Epub 2015 May 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Interdisciplinary PhD Program in Genetics, Bioinformatics, and Computational Biology, Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg, VA, USA. Department of Biochemistry, Virginia Tech, Blacksburg, VA, USA. Fralin Life Science Institute, Virginia Tech, Blacksburg, VA, USA. ; Fralin Life Science Institute, Virginia Tech, Blacksburg, VA, USA. Department of Entomology, Virginia Tech, Blacksburg, VA, USA. ; Department of Biochemistry, Virginia Tech, Blacksburg, VA, USA. Fralin Life Science Institute, Virginia Tech, Blacksburg, VA, USA. ; Department of Biochemistry, Virginia Tech, Blacksburg, VA, USA. ; School of Public Health and Tropical Medicine, Southern Medical University, Guangdong, People's Republic of China. ; Interdisciplinary PhD Program in Genetics, Bioinformatics, and Computational Biology, Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg, VA, USA. Fralin Life Science Institute, Virginia Tech, Blacksburg, VA, USA. Department of Entomology, Virginia Tech, Blacksburg, VA, USA. ; Interdisciplinary PhD Program in Genetics, Bioinformatics, and Computational Biology, Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg, VA, USA. Fralin Life Science Institute, Virginia Tech, Blacksburg, VA, USA. Department of Entomology, Virginia Tech, Blacksburg, VA, USA. jaketu@vt.edu zachadel@vt.edu. ; Interdisciplinary PhD Program in Genetics, Bioinformatics, and Computational Biology, Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg, VA, USA. Department of Biochemistry, Virginia Tech, Blacksburg, VA, USA. Fralin Life Science Institute, Virginia Tech, Blacksburg, VA, USA. jaketu@vt.edu zachadel@vt.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25999371" target="_blank"〉PubMed〈/a〉
    Keywords: Aedes/*genetics/*growth & development ; Animals ; Caspase 9 ; Clustered Regularly Interspaced Short Palindromic Repeats ; Female ; Gene Knockout Techniques ; *Genes, Insect ; *Genetic Loci ; Male ; Molecular Sequence Data ; Mosquito Control/methods ; Sex Determination Processes/*genetics
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  • 14
    Publication Date: 2015-05-23
    Description: Extremophiles, microorganisms thriving in extreme environmental conditions, must have proteins and nucleic acids that are stable at extremes of temperature and pH. The nonenveloped, rod-shaped virus SIRV2 (Sulfolobus islandicus rod-shaped virus 2) infects the hyperthermophilic acidophile Sulfolobus islandicus, which lives at 80 degrees C and pH 3. We have used cryo-electron microscopy to generate a three-dimensional reconstruction of the SIRV2 virion at ~4 angstrom resolution, which revealed a previously unknown form of virion organization. Although almost half of the capsid protein is unstructured in solution, this unstructured region folds in the virion into a single extended alpha helix that wraps around the DNA. The DNA is entirely in the A-form, which suggests a common mechanism with bacterial spores for protecting DNA in the most adverse environments.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉DiMaio, Frank -- Yu, Xiong -- Rensen, Elena -- Krupovic, Mart -- Prangishvili, David -- Egelman, Edward H -- GM035269/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2015 May 22;348(6237):914-7. doi: 10.1126/science.aaa4181.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Washington, Seattle, WA 98195, USA. ; Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, VA 22908, USA. ; Institut Pasteur, Department of Microbiology, 25 rue du Dr. Roux, Paris 75015, France. ; Institut Pasteur, Department of Microbiology, 25 rue du Dr. Roux, Paris 75015, France. egelman@virginia.edu david.prangishvili@pasteur.fr. ; Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, VA 22908, USA. egelman@virginia.edu david.prangishvili@pasteur.fr.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25999507" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cryoelectron Microscopy ; DNA, A-Form/*metabolism ; Molecular Sequence Data ; Protein Multimerization ; Protein Structure, Secondary ; Rudiviridae/*metabolism/ultrastructure ; Spores, Bacterial/genetics/virology ; Sulfolobus/*genetics/*virology ; Virion/*ultrastructure
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  • 15
    Publication Date: 2015-10-10
    Description: Strigolactones are naturally occurring signaling molecules that affect plant development, fungi-plant interactions, and parasitic plant infestations. We characterized the function of 11 strigolactone receptors from the parasitic plant Striga hermonthica using chemical and structural biology. We found a clade of polyspecific receptors, including one that is sensitive to picomolar concentrations of strigolactone. A crystal structure of a highly sensitive strigolactone receptor from Striga revealed a larger binding pocket than that of the Arabidopsis receptor, which could explain the increased range of strigolactone sensitivity. Thus, the sensitivity of Striga to strigolactones from host plants is driven by receptor sensitivity. By expressing strigolactone receptors in Arabidopsis, we developed a bioassay that can be used to identify chemicals and crops with altered strigolactone levels.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Toh, Shigeo -- Holbrook-Smith, Duncan -- Stogios, Peter J -- Onopriyenko, Olena -- Lumba, Shelley -- Tsuchiya, Yuichiro -- Savchenko, Alexei -- McCourt, Peter -- New York, N.Y. -- Science. 2015 Oct 9;350(6257):203-7. doi: 10.1126/science.aac9476.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cell and Systems Biology, University of Toronto, 25 Willcocks Street, Toronto M5S 3B2, Canada. ; Department of Chemical Engineering and Applied Chemistry, Banting and Best Department of Medical Research, University of Toronto, 200 College Street, Toronto M5S 3E5, Canada. Center for Structural Genomics of Infectious Diseases, contracted by National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA. ; Department of Chemical Engineering and Applied Chemistry, Banting and Best Department of Medical Research, University of Toronto, 200 College Street, Toronto M5S 3E5, Canada. ; Institute of Transformative Bio-Molecules, Nagoya University, Japan, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan. ; Cell and Systems Biology, University of Toronto, 25 Willcocks Street, Toronto M5S 3B2, Canada. peter.mccourt@utoronto.ca.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26450211" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arabidopsis/genetics/metabolism ; Catalytic Domain ; Germination/drug effects ; Heterocyclic Compounds, 3-Ring/*metabolism/pharmacology ; Lactones/*metabolism/pharmacology ; Molecular Sequence Data ; Phylogeny ; Plant Growth Regulators/*metabolism/pharmacology ; Plant Proteins/*chemistry/classification/genetics ; Protein Structure, Secondary ; Receptors, Cell Surface/*chemistry/classification/genetics ; Seeds/genetics/growth & development/metabolism ; Striga/genetics/growth & development/*metabolism ; Structure-Activity Relationship
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  • 16
    Publication Date: 2015-03-15
    Description: TREK-2 (KCNK10/K2P10), a two-pore domain potassium (K2P) channel, is gated by multiple stimuli such as stretch, fatty acids, and pH and by several drugs. However, the mechanisms that control channel gating are unclear. Here we present crystal structures of the human TREK-2 channel (up to 3.4 angstrom resolution) in two conformations and in complex with norfluoxetine, the active metabolite of fluoxetine (Prozac) and a state-dependent blocker of TREK channels. Norfluoxetine binds within intramembrane fenestrations found in only one of these two conformations. Channel activation by arachidonic acid and mechanical stretch involves conversion between these states through movement of the pore-lining helices. These results provide an explanation for TREK channel mechanosensitivity, regulation by diverse stimuli, and possible off-target effects of the serotonin reuptake inhibitor Prozac.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dong, Yin Yao -- Pike, Ashley C W -- Mackenzie, Alexandra -- McClenaghan, Conor -- Aryal, Prafulla -- Dong, Liang -- Quigley, Andrew -- Grieben, Mariana -- Goubin, Solenne -- Mukhopadhyay, Shubhashish -- Ruda, Gian Filippo -- Clausen, Michael V -- Cao, Lishuang -- Brennan, Paul E -- Burgess-Brown, Nicola A -- Sansom, Mark S P -- Tucker, Stephen J -- Carpenter, Elisabeth P -- 084655/Wellcome Trust/United Kingdom -- 092809/Z/10/Z/Wellcome Trust/United Kingdom -- Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2015 Mar 13;347(6227):1256-9. doi: 10.1126/science.1261512.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Structural Genomics Consortium, University of Oxford, Oxford OX3 7DQ, UK. ; Structural Genomics Consortium, University of Oxford, Oxford OX3 7DQ, UK. Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK. ; Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK. OXION Initiative in Ion Channels and Disease, University of Oxford, Oxford OX1 3PN, UK. ; Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK. OXION Initiative in Ion Channels and Disease, University of Oxford, Oxford OX1 3PN, UK. Department of Biochemistry, University of Oxford, Oxford OX1 3QU, UK. ; Structural Genomics Consortium, University of Oxford, Oxford OX3 7DQ, UK. Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7FZ, UK. ; Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK. ; Pfizer Neusentis, Granta Park, Cambridge CB21 6GS, UK. ; OXION Initiative in Ion Channels and Disease, University of Oxford, Oxford OX1 3PN, UK. Department of Biochemistry, University of Oxford, Oxford OX1 3QU, UK. ; Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK. OXION Initiative in Ion Channels and Disease, University of Oxford, Oxford OX1 3PN, UK. liz.carpenter@sgc.ox.ac.uk stephen.tucker@physics.ox.ac.uk. ; Structural Genomics Consortium, University of Oxford, Oxford OX3 7DQ, UK. OXION Initiative in Ion Channels and Disease, University of Oxford, Oxford OX1 3PN, UK. liz.carpenter@sgc.ox.ac.uk stephen.tucker@physics.ox.ac.uk.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25766236" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arachidonic Acid/pharmacology ; Binding Sites ; Crystallography, X-Ray ; Fluoxetine/analogs & derivatives/chemistry/metabolism/pharmacology ; Humans ; *Ion Channel Gating ; Models, Molecular ; Molecular Dynamics Simulation ; Molecular Sequence Data ; Potassium/metabolism ; Potassium Channels, Tandem Pore Domain/antagonists & ; inhibitors/*chemistry/metabolism ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary
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  • 17
    Publication Date: 2015-11-07
    Description: Understanding the evolution of sex determination in plants requires identifying the mechanisms underlying the transition from monoecious plants, where male and female flowers coexist, to unisexual individuals found in dioecious species. We show that in melon and cucumber, the androecy gene controls female flower development and encodes a limiting enzyme of ethylene biosynthesis, ACS11. ACS11 is expressed in phloem cells connected to flowers programmed to become female, and ACS11 loss-of-function mutants lead to male plants (androecy). CmACS11 represses the expression of the male promoting gene CmWIP1 to control the development and the coexistence of male and female flowers in monoecious species. Because monoecy can lead to dioecy, we show how a combination of alleles of CmACS11 and CmWIP1 can create artificial dioecy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boualem, Adnane -- Troadec, Christelle -- Camps, Celine -- Lemhemdi, Afef -- Morin, Halima -- Sari, Marie-Agnes -- Fraenkel-Zagouri, Rina -- Kovalski, Irina -- Dogimont, Catherine -- Perl-Treves, Rafael -- Bendahmane, Abdelhafid -- New York, N.Y. -- Science. 2015 Nov 6;350(6261):688-91. doi: 10.1126/science.aac8370.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut National de la Recherche Agronomique (INRA), Institute of Plant Sciences Paris-Saclay, CNRS, Universite Paris-Sud, Universite d'Evry, Universite Paris-Diderot, Batiment 630, 91405, Orsay, France. ; Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS, UMR 8601, Universite Rene Descartes, Paris, France. ; The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel. ; INRA, UR 1052, Unite de Genetique et d'Amelioration des Fruits et Legumes, BP 94, F-84143 Montfavet, France. ; Institut National de la Recherche Agronomique (INRA), Institute of Plant Sciences Paris-Saclay, CNRS, Universite Paris-Sud, Universite d'Evry, Universite Paris-Diderot, Batiment 630, 91405, Orsay, France. bendahm@evry.inra.fr.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26542573" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Amino Acid Sequence ; *Biological Evolution ; Cucumis sativus/enzymology/genetics/growth & development ; Cucurbitaceae/enzymology/genetics/*growth & development ; Ethylenes/biosynthesis ; Flowers/enzymology/genetics/*growth & development ; Genes, Plant/genetics/physiology ; Lyases/genetics/*physiology ; Molecular Sequence Data ; Phloem/enzymology/genetics/growth & development ; Plant Proteins/genetics/*physiology ; Sex Determination Processes/*genetics
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  • 18
    Publication Date: 2015-08-22
    Description: Elucidating the signaling mechanism of strigolactones has been the key to controlling the devastating problem caused by the parasitic plant Striga hermonthica. To overcome the genetic intractability that has previously interfered with identification of the strigolactone receptor, we developed a fluorescence turn-on probe, Yoshimulactone Green (YLG), which activates strigolactone signaling and illuminates signal perception by the strigolactone receptors. Here we describe how strigolactones bind to and act via ShHTLs, the diverged family of alpha/beta hydrolase-fold proteins in Striga. Live imaging using YLGs revealed that a dynamic wavelike propagation of strigolactone perception wakes up Striga seeds. We conclude that ShHTLs function as the strigolactone receptors mediating seed germination in Striga. Our findings enable access to strigolactone receptors and observation of the regulatory dynamics for strigolactone signal transduction in Striga.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tsuchiya, Yuichiro -- Yoshimura, Masahiko -- Sato, Yoshikatsu -- Kuwata, Keiko -- Toh, Shigeo -- Holbrook-Smith, Duncan -- Zhang, Hua -- McCourt, Peter -- Itami, Kenichiro -- Kinoshita, Toshinori -- Hagihara, Shinya -- New York, N.Y. -- Science. 2015 Aug 21;349(6250):864-8. doi: 10.1126/science.aab3831.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan. Department of Cell and Systems Biology, University of Toronto, 25 Willcocks Street, Toronto, Ontario M5S 3B2, Canada. yuichiro@itbm.nagoya-u.ac.jp hagi@itbm.nagoya-u.ac.jp. ; Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan. Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan. ; Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan. ; Department of Cell and Systems Biology, University of Toronto, 25 Willcocks Street, Toronto, Ontario M5S 3B2, Canada. ; Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan. Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan. Japan Science and Technology Agency-Exploratory Research for Advanced Technology, Itami Molecular Nanocarbon Project, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan. ; Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan. Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan. yuichiro@itbm.nagoya-u.ac.jp hagi@itbm.nagoya-u.ac.jp.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26293962" target="_blank"〉PubMed〈/a〉
    Keywords: Fluoresceins/chemistry/metabolism ; Fluorescence ; Fluorescent Dyes/chemistry/metabolism ; *Germination ; Hydrolases/metabolism ; Hydrolysis ; Lactones/*metabolism ; Molecular Imaging/methods ; Molecular Sequence Data ; Plant Growth Regulators/*metabolism ; Plant Proteins/genetics/*metabolism ; Receptors, Cell Surface/genetics/*metabolism ; Seeds/*growth & development/metabolism ; Signal Transduction ; Striga/*growth & development/metabolism
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  • 19
    Publication Date: 2015-09-26
    Description: Cyclic guanosine monophosphate-adenosine monophosphate synthase (cGAS) detects intracellular DNA and signals through the adapter protein STING to initiate the antiviral response to DNA viruses. Whether DNA viruses can prevent activation of the cGAS-STING pathway remains largely unknown. Here, we identify the oncogenes of the DNA tumor viruses, including E7 from human papillomavirus (HPV) and E1A from adenovirus, as potent and specific inhibitors of the cGAS-STING pathway. We show that the LXCXE motif of these oncoproteins, which is essential for blockade of the retinoblastoma tumor suppressor, is also important for antagonizing DNA sensing. E1A and E7 bind to STING, and silencing of these oncogenes in human tumor cells restores the cGAS-STING pathway. Our findings reveal a host-virus conflict that may have shaped the evolution of viral oncogenes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lau, Laura -- Gray, Elizabeth E -- Brunette, Rebecca L -- Stetson, Daniel B -- New York, N.Y. -- Science. 2015 Oct 30;350(6260):568-71. doi: 10.1126/science.aab3291. Epub 2015 Sep 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, University of Washington School of Medicine, Seattle, WA 98109, USA. ; Department of Immunology, University of Washington School of Medicine, Seattle, WA 98109, USA. stetson@uw.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26405230" target="_blank"〉PubMed〈/a〉
    Keywords: Adenovirus E1A Proteins/chemistry/genetics/*metabolism ; Amino Acid Motifs ; Amino Acid Sequence ; DNA Tumor Viruses/*immunology ; DNA, Neoplasm/immunology ; DNA-Binding Proteins/chemistry/genetics/*metabolism ; Evolution, Molecular ; HEK293 Cells ; HeLa Cells ; Host-Pathogen Interactions ; Humans ; Membrane Proteins/*antagonists & inhibitors ; Metabolic Networks and Pathways ; Molecular Sequence Data ; Nucleotides, Cyclic/*antagonists & inhibitors ; Oncogene Proteins, Viral/chemistry/genetics/*metabolism ; Retinoblastoma Protein/antagonists & inhibitors ; *Tumor Escape
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  • 20
    Publication Date: 2015-09-12
    Description: Podophyllotoxin is the natural product precursor of the chemotherapeutic etoposide, yet only part of its biosynthetic pathway is known. We used transcriptome mining in Podophyllum hexandrum (mayapple) to identify biosynthetic genes in the podophyllotoxin pathway. We selected 29 candidate genes to combinatorially express in Nicotiana benthamiana (tobacco) and identified six pathway enzymes, including an oxoglutarate-dependent dioxygenase that closes the core cyclohexane ring of the aryltetralin scaffold. By coexpressing 10 genes in tobacco-these 6 plus 4 previously discovered-we reconstitute the pathway to (-)-4'-desmethylepipodophyllotoxin (the etoposide aglycone), a naturally occurring lignan that is the immediate precursor of etoposide and, unlike podophyllotoxin, a potent topoisomerase inhibitor. Our results enable production of the etoposide aglycone in tobacco and circumvent the need for cultivation of mayapple and semisynthetic epimerization and demethylation of podophyllotoxin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lau, Warren -- Sattely, Elizabeth S -- DP2 AT008321/AT/NCCIH NIH HHS/ -- R00 GM089985/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2015 Sep 11;349(6253):1224-8. doi: 10.1126/science.aac7202.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA. ; Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA. sattely@stanford.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26359402" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Biosynthetic Pathways/genetics ; Etoposide/*metabolism ; Gene Expression Regulation, Enzymologic ; Gene Expression Regulation, Plant ; *Genetic Engineering ; Methylation ; Mixed Function Oxygenases/genetics/*metabolism ; Molecular Sequence Data ; Podophyllotoxin/*analogs & derivatives/biosynthesis/*metabolism ; Podophyllum peltatum/*enzymology/genetics ; Tobacco/genetics/*metabolism ; Topoisomerase Inhibitors/*metabolism ; Transcriptome
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  • 21
    Publication Date: 2015-03-31
    Description: The occurrence of Ebola virus (EBOV) in West Africa during 2013-2015 is unprecedented. Early reports suggested that in this outbreak EBOV is mutating twice as fast as previously observed, which indicates the potential for changes in transmissibility and virulence and could render current molecular diagnostics and countermeasures ineffective. We have determined additional full-length sequences from two clusters of imported EBOV infections into Mali, and we show that the nucleotide substitution rate (9.6 x 10(-4) substitutions per site per year) is consistent with rates observed in Central African outbreaks. In addition, overall variation among all genotypes observed remains low. Thus, our data indicate that EBOV is not undergoing rapid evolution in humans during the current outbreak. This finding has important implications for outbreak response and public health decisions and should alleviate several previously raised concerns.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoenen, T -- Safronetz, D -- Groseth, A -- Wollenberg, K R -- Koita, O A -- Diarra, B -- Fall, I S -- Haidara, F C -- Diallo, F -- Sanogo, M -- Sarro, Y S -- Kone, A -- Togo, A C G -- Traore, A -- Kodio, M -- Dosseh, A -- Rosenke, K -- de Wit, E -- Feldmann, F -- Ebihara, H -- Munster, V J -- Zoon, K C -- Feldmann, H -- Sow, S -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2015 Apr 3;348(6230):117-9. doi: 10.1126/science.aaa5646. Epub 2015 Mar 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Hamilton, MT 59840, USA. ; Bioinformatics and Computational Biosciences Branch, NIAID, NIH, Bethesda, MD 20892, USA. ; Center of Research and Training for HIV and Tuberculosis, University of Science, Technique and Technologies of Bamako, Mali. ; World Health Organization Office, Bamako, Mali. ; Centre des Operations d'Urgence, Centre pour le Developpement des Vaccins (CVD-Mali), Centre National d'Appui a la lutte contre la Maladie, Ministere de la Sante et de l'Hygiene Publique, Bamako, Mali. ; World Health Organization Inter-Country Support Team, Ouagadougou, Burkina Faso. ; Rocky Mountain Veterinary Branch, Division of Intramural Research, NIAID, NIH, Hamilton, MT 59840, USA. ; Office of the Scientific Director, NIAID, NIH, Bethesda, MD 20895, USA. ; Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Hamilton, MT 59840, USA. feldmannh@niaid.nih.gov ssow@medicine.umaryland.edu. ; Centre des Operations d'Urgence, Centre pour le Developpement des Vaccins (CVD-Mali), Centre National d'Appui a la lutte contre la Maladie, Ministere de la Sante et de l'Hygiene Publique, Bamako, Mali. feldmannh@niaid.nih.gov ssow@medicine.umaryland.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25814067" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Disease Outbreaks ; Ebolavirus/classification/*genetics/isolation & purification ; Genotype ; Hemorrhagic Fever, Ebola/epidemiology/*virology ; Humans ; Mali/epidemiology ; Molecular Sequence Data ; *Mutation Rate ; Phylogeny
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  • 22
    Publication Date: 2015-09-01
    Description: DNA strand exchange plays a central role in genetic recombination across all kingdoms of life, but the physical basis for these reactions remains poorly defined. Using single-molecule imaging, we found that bacterial RecA and eukaryotic Rad51 and Dmc1 all stabilize strand exchange intermediates in precise three-nucleotide steps. Each step coincides with an energetic signature (0.3 kBT) that is conserved from bacteria to humans. Triplet recognition is strictly dependent on correct Watson-Crick pairing. Rad51, RecA, and Dmc1 can all step over mismatches, but only Dmc1 can stabilize mismatched triplets. This finding provides insight into why eukaryotes have evolved a meiosis-specific recombinase. We propose that canonical Watson-Crick base triplets serve as the fundamental unit of pairing interactions during DNA recombination.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4580133/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4580133/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, Ja Yil -- Terakawa, Tsuyoshi -- Qi, Zhi -- Steinfeld, Justin B -- Redding, Sy -- Kwon, YoungHo -- Gaines, William A -- Zhao, Weixing -- Sung, Patrick -- Greene, Eric C -- CA146940/CA/NCI NIH HHS/ -- GM074739/GM/NIGMS NIH HHS/ -- R01 CA146940/CA/NCI NIH HHS/ -- R01 ES015252/ES/NIEHS NIH HHS/ -- R01 GM074739/GM/NIGMS NIH HHS/ -- R01ES015252/ES/NIEHS NIH HHS/ -- T32 GM007367/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Aug 28;349(6251):977-81. doi: 10.1126/science.aab2666.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY, USA. ; Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY, USA. Department of Biophysics, Kyoto University, Sakyo, Kyoto, Japan. ; Department of Chemistry, Columbia University, New York, NY, USA. ; Department of Molecular Biophysics and Biochemistry, Yale University School of Medicine, New Haven, CT, USA. ; Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY, USA. Howard Hughes Medical Institute, Columbia University, New York, NY, USA. ecg2108@cumc.columbia.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26315438" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Pairing ; Base Sequence ; Cell Cycle Proteins/chemistry/metabolism ; DNA/*chemistry/*metabolism ; DNA, Single-Stranded/metabolism ; DNA-Binding Proteins/chemistry/metabolism ; Escherichia coli Proteins/chemistry/metabolism ; Evolution, Molecular ; *Homologous Recombination ; Humans ; Meiosis ; Molecular Dynamics Simulation ; Molecular Sequence Data ; Rad51 Recombinase/chemistry/*metabolism ; Rec A Recombinases/chemistry/*metabolism ; Recombinases/chemistry/*metabolism ; Saccharomyces cerevisiae Proteins/chemistry/*metabolism ; Thermodynamics
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  • 23
    Publication Date: 2015-01-03
    Description: Variation in vectorial capacity for human malaria among Anopheles mosquito species is determined by many factors, including behavior, immunity, and life history. To investigate the genomic basis of vectorial capacity and explore new avenues for vector control, we sequenced the genomes of 16 anopheline mosquito species from diverse locations spanning ~100 million years of evolution. Comparative analyses show faster rates of gene gain and loss, elevated gene shuffling on the X chromosome, and more intron losses, relative to Drosophila. Some determinants of vectorial capacity, such as chemosensory genes, do not show elevated turnover but instead diversify through protein-sequence changes. This dynamism of anopheline genes and genomes may contribute to their flexible capacity to take advantage of new ecological niches, including adapting to humans as primary hosts.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4380271/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4380271/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Neafsey, Daniel E -- Waterhouse, Robert M -- Abai, Mohammad R -- Aganezov, Sergey S -- Alekseyev, Max A -- Allen, James E -- Amon, James -- Arca, Bruno -- Arensburger, Peter -- Artemov, Gleb -- Assour, Lauren A -- Basseri, Hamidreza -- Berlin, Aaron -- Birren, Bruce W -- Blandin, Stephanie A -- Brockman, Andrew I -- Burkot, Thomas R -- Burt, Austin -- Chan, Clara S -- Chauve, Cedric -- Chiu, Joanna C -- Christensen, Mikkel -- Costantini, Carlo -- Davidson, Victoria L M -- Deligianni, Elena -- Dottorini, Tania -- Dritsou, Vicky -- Gabriel, Stacey B -- Guelbeogo, Wamdaogo M -- Hall, Andrew B -- Han, Mira V -- Hlaing, Thaung -- Hughes, Daniel S T -- Jenkins, Adam M -- Jiang, Xiaofang -- Jungreis, Irwin -- Kakani, Evdoxia G -- Kamali, Maryam -- Kemppainen, Petri -- Kennedy, Ryan C -- Kirmitzoglou, Ioannis K -- Koekemoer, Lizette L -- Laban, Njoroge -- Langridge, Nicholas -- Lawniczak, Mara K N -- Lirakis, Manolis -- Lobo, Neil F -- Lowy, Ernesto -- MacCallum, Robert M -- Mao, Chunhong -- Maslen, Gareth -- Mbogo, Charles -- McCarthy, Jenny -- Michel, Kristin -- Mitchell, Sara N -- Moore, Wendy -- Murphy, Katherine A -- Naumenko, Anastasia N -- Nolan, Tony -- Novoa, Eva M -- O'Loughlin, Samantha -- Oringanje, Chioma -- Oshaghi, Mohammad A -- Pakpour, Nazzy -- Papathanos, Philippos A -- Peery, Ashley N -- Povelones, Michael -- Prakash, Anil -- Price, David P -- Rajaraman, Ashok -- Reimer, Lisa J -- Rinker, David C -- Rokas, Antonis -- Russell, Tanya L -- Sagnon, N'Fale -- Sharakhova, Maria V -- Shea, Terrance -- Simao, Felipe A -- Simard, Frederic -- Slotman, Michel A -- Somboon, Pradya -- Stegniy, Vladimir -- Struchiner, Claudio J -- Thomas, Gregg W C -- Tojo, Marta -- Topalis, Pantelis -- Tubio, Jose M C -- Unger, Maria F -- Vontas, John -- Walton, Catherine -- Wilding, Craig S -- Willis, Judith H -- Wu, Yi-Chieh -- Yan, Guiyun -- Zdobnov, Evgeny M -- Zhou, Xiaofan -- Catteruccia, Flaminia -- Christophides, George K -- Collins, Frank H -- Cornman, Robert S -- Crisanti, Andrea -- Donnelly, Martin J -- Emrich, Scott J -- Fontaine, Michael C -- Gelbart, William -- Hahn, Matthew W -- Hansen, Immo A -- Howell, Paul I -- Kafatos, Fotis C -- Kellis, Manolis -- Lawson, Daniel -- Louis, Christos -- Luckhart, Shirley -- Muskavitch, Marc A T -- Ribeiro, Jose M -- Riehle, Michael A -- Sharakhov, Igor V -- Tu, Zhijian -- Zwiebel, Laurence J -- Besansky, Nora J -- 092654/Wellcome Trust/United Kingdom -- R01 AI050243/AI/NIAID NIH HHS/ -- R01 AI063508/AI/NIAID NIH HHS/ -- R01 AI073745/AI/NIAID NIH HHS/ -- R01 AI076584/AI/NIAID NIH HHS/ -- R01 AI080799/AI/NIAID NIH HHS/ -- R01 AI104956/AI/NIAID NIH HHS/ -- R21 AI101459/AI/NIAID NIH HHS/ -- R56 AI107263/AI/NIAID NIH HHS/ -- SC1 AI109055/AI/NIAID NIH HHS/ -- U19 AI089686/AI/NIAID NIH HHS/ -- U19 AI110818/AI/NIAID NIH HHS/ -- U41 HG007234/HG/NHGRI NIH HHS/ -- U54 HG003067/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2015 Jan 2;347(6217):1258522. doi: 10.1126/science.1258522. Epub 2014 Nov 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genome Sequencing and Analysis Program, Broad Institute, 415 Main Street, Cambridge, MA 02142, USA. neafsey@broadinstitute.org nbesansk@nd.edu. ; Computer Science and Artificial Intelligence Laboratory, Massachusetts Institute of Technology, 32 Vassar Street, Cambridge, MA 02139, USA. The Broad Institute of Massachusetts Institute of Technology and Harvard, 415 Main Street, Cambridge, MA 02142, USA. Department of Genetic Medicine and Development, University of Geneva Medical School, Rue Michel-Servet 1, 1211 Geneva, Switzerland. Swiss Institute of Bioinformatics, Rue Michel-Servet 1, 1211 Geneva, Switzerland. ; Department of Medical Entomology and Vector Control, School of Public Health and Institute of Health Researches, Tehran University of Medical Sciences, Tehran, Iran. ; George Washington University, Department of Mathematics and Computational Biology Institute, 45085 University Drive, Ashburn, VA 20147, USA. ; European Molecular Biology Laboratory, European Bioinformatics Institute, EMBL-EBI, Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1SD, UK. ; National Vector Borne Disease Control Programme, Ministry of Health, Tafea Province, Vanuatu. ; Department of Public Health and Infectious Diseases, Division of Parasitology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy. ; Department of Biological Sciences, California State Polytechnic-Pomona, 3801 West Temple Avenue, Pomona, CA 91768, USA. ; Tomsk State University, 36 Lenina Avenue, Tomsk, Russia. ; Department of Computer Science and Engineering, Eck Institute for Global Health, 211B Cushing Hall, University of Notre Dame, Notre Dame, IN 46556, USA. ; Genome Sequencing and Analysis Program, Broad Institute, 415 Main Street, Cambridge, MA 02142, USA. ; Inserm, U963, F-67084 Strasbourg, France. CNRS, UPR9022, IBMC, F-67084 Strasbourg, France. ; Department of Life Sciences, Imperial College London, South Kensington Campus, London SW7 2AZ, UK. ; Faculty of Medicine, Health and Molecular Science, Australian Institute of Tropical Health Medicine, James Cook University, Cairns 4870, Australia. ; Department of Life Sciences, Imperial College London, Silwood Park Campus, Ascot SL5 7PY, UK. ; Computer Science and Artificial Intelligence Laboratory, Massachusetts Institute of Technology, 32 Vassar Street, Cambridge, MA 02139, USA. The Broad Institute of Massachusetts Institute of Technology and Harvard, 415 Main Street, Cambridge, MA 02142, USA. ; Department of Mathematics, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada. ; Department of Entomology and Nematology, One Shields Avenue, University of California-Davis, Davis, CA 95616, USA. ; Institut de Recherche pour le Developpement, Unites Mixtes de Recherche Maladies Infectieuses et Vecteurs Ecologie, Genetique, Evolution et Controle, 911, Avenue Agropolis, BP 64501 Montpellier, France. ; Division of Biology, Kansas State University, 271 Chalmers Hall, Manhattan, KS 66506, USA. ; Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology, Hellas, Nikolaou Plastira 100 GR-70013, Heraklion, Crete, Greece. ; Centre of Functional Genomics, University of Perugia, Perugia, Italy. ; Genomics Platform, Broad Institute, 415 Main Street, Cambridge, MA 02142, USA. ; Centre National de Recherche et de Formation sur le Paludisme, Ouagadougou 01 BP 2208, Burkina Faso. ; Program of Genetics, Bioinformatics, and Computational Biology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA. ; School of Life Sciences, University of Nevada, Las Vegas, NV 89154, USA. ; Department of Medical Research, No. 5 Ziwaka Road, Dagon Township, Yangon 11191, Myanmar. ; European Molecular Biology Laboratory, European Bioinformatics Institute, EMBL-EBI, Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1SD, UK. Baylor College of Medicine, 1 Baylor Plaza, Houston, TX 77030, USA. ; Boston College, 140 Commonwealth Avenue, Chestnut Hill, MA 02467, USA. ; Department of Biochemistry, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA. Program of Genetics, Bioinformatics, and Computational Biology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA. ; Harvard School of Public Health, Department of Immunology and Infectious Diseases, Boston, MA 02115, USA. Dipartimento di Medicina Sperimentale e Scienze Biochimiche, Universita degli Studi di Perugia, Perugia, Italy. ; Department of Entomology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA. ; Computational Evolutionary Biology Group, Faculty of Life Sciences, University of Manchester, Oxford Road, Manchester M13 9PT, UK. ; Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA 94143, USA. ; Department of Life Sciences, Imperial College London, South Kensington Campus, London SW7 2AZ, UK. Bioinformatics Research Laboratory, Department of Biological Sciences, New Campus, University of Cyprus, CY 1678 Nicosia, Cyprus. ; Wits Research Institute for Malaria, Faculty of Health Sciences, and Vector Control Reference Unit, National Institute for Communicable Diseases of the National Health Laboratory Service, Sandringham 2131, Johannesburg, South Africa. ; National Museums of Kenya, P.O. Box 40658-00100, Nairobi, Kenya. ; Department of Biology, University of Crete, 700 13 Heraklion, Greece. ; Eck Institute for Global Health and Department of Biological Sciences, University of Notre Dame, 317 Galvin Life Sciences Building, Notre Dame, IN 46556, USA. ; Virginia Bioinformatics Institute, 1015 Life Science Circle, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA. ; Kenya Medical Research Institute-Wellcome Trust Research Programme, Centre for Geographic Medicine Research - Coast, P.O. Box 230-80108, Kilifi, Kenya. ; Harvard School of Public Health, Department of Immunology and Infectious Diseases, Boston, MA 02115, USA. ; Department of Entomology, 1140 East South Campus Drive, Forbes 410, University of Arizona, Tucson, AZ 85721, USA. ; Department of Medical Microbiology and Immunology, School of Medicine, University of California Davis, One Shields Avenue, Davis, CA 95616, USA. ; Department of Life Sciences, Imperial College London, South Kensington Campus, London SW7 2AZ, UK. Centre of Functional Genomics, University of Perugia, Perugia, Italy. ; Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, 3800 Spruce Street, Philadelphia, PA 19104, USA. ; Regional Medical Research Centre NE, Indian Council of Medical Research, P.O. Box 105, Dibrugarh-786 001, Assam, India. ; Department of Biology, New Mexico State University, Las Cruces, NM 88003, USA. Molecular Biology Program, New Mexico State University, Las Cruces, NM 88003, USA. ; Department of Vector Biology, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, UK. ; Center for Human Genetics Research, Vanderbilt University Medical Center, Nashville, TN 37235, USA. ; Center for Human Genetics Research, Vanderbilt University Medical Center, Nashville, TN 37235, USA. Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA. ; Department of Genetic Medicine and Development, University of Geneva Medical School, Rue Michel-Servet 1, 1211 Geneva, Switzerland. Swiss Institute of Bioinformatics, Rue Michel-Servet 1, 1211 Geneva, Switzerland. ; Department of Entomology, Texas A&M University, College Station, TX 77807, USA. ; Department of Parasitology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand. ; Fundacao Oswaldo Cruz, Avenida Brasil 4365, RJ Brazil. Instituto de Medicina Social, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil. ; School of Informatics and Computing, Indiana University, Bloomington, IN 47405, USA. ; Department of Physiology, School of Medicine, Center for Research in Molecular Medicine and Chronic Diseases, Instituto de Investigaciones Sanitarias, University of Santiago de Compostela, Santiago de Compostela, A Coruna, Spain. ; Wellcome Trust Sanger Institute, Hinxton, Cambridgeshire, CB10 1SA, UK. ; School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool L3 3AF, UK. ; Department of Cellular Biology, University of Georgia, Athens, GA 30602, USA. ; Computer Science and Artificial Intelligence Laboratory, Massachusetts Institute of Technology, 32 Vassar Street, Cambridge, MA 02139, USA. The Broad Institute of Massachusetts Institute of Technology and Harvard, 415 Main Street, Cambridge, MA 02142, USA. Department of Computer Science, Harvey Mudd College, Claremont, CA 91711, USA. ; Program in Public Health, College of Health Sciences, University of California, Irvine, Hewitt Hall, Irvine, CA 92697, USA. ; Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA. ; Department of Vector Biology, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, UK. Malaria Programme, Wellcome Trust Sanger Institute, Cambridge CB10 1SJ, UK. ; Eck Institute for Global Health and Department of Biological Sciences, University of Notre Dame, 317 Galvin Life Sciences Building, Notre Dame, IN 46556, USA. Centre of Evolutionary and Ecological Studies (Marine Evolution and Conservation group), University of Groningen, Nijenborgh 7, NL-9747 AG Groningen, Netherlands. ; Department of Molecular and Cellular Biology, Harvard University, 16 Divinity Avenue, Cambridge, MA 02138, USA. ; Department of Biology, Indiana University, Bloomington, IN 47405, USA. School of Informatics and Computing, Indiana University, Bloomington, IN 47405, USA. ; Centers for Disease Control and Prevention, 1600 Clifton Road NE MSG49, Atlanta, GA 30329, USA. ; Department of Biology, University of Crete, 700 13 Heraklion, Greece. Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology, Hellas, Nikolaou Plastira 100 GR-70013, Heraklion, Crete, Greece. Centre of Functional Genomics, University of Perugia, Perugia, Italy. ; Boston College, 140 Commonwealth Avenue, Chestnut Hill, MA 02467, USA. Biogen Idec, 14 Cambridge Center, Cambridge, MA 02142, USA. ; Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, 12735 Twinbrook Parkway, Rockville, MD 20852, USA. ; Department of Entomology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA. Program of Genetics, Bioinformatics, and Computational Biology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA. ; Program of Genetics, Bioinformatics, and Computational Biology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA. Department of Biochemistry, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA. ; Departments of Biological Sciences and Pharmacology, Institutes for Chemical Biology, Genetics and Global Health, Vanderbilt University and Medical Center, Nashville, TN 37235, USA. ; Eck Institute for Global Health and Department of Biological Sciences, University of Notre Dame, 317 Galvin Life Sciences Building, Notre Dame, IN 46556, USA. neafsey@broadinstitute.org nbesansk@nd.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25554792" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anopheles/classification/*genetics ; Base Sequence ; Chromosomes, Insect/genetics ; Drosophila/genetics ; *Evolution, Molecular ; *Genome, Insect ; Humans ; Insect Vectors/classification/*genetics ; Malaria/*transmission ; Molecular Sequence Data ; Phylogeny ; Sequence Alignment
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 24
    Publication Date: 2015-10-17
    Description: Transcriptional enhancers direct precise on-off patterns of gene expression during development. To explore the basis for this precision, we conducted a high-throughput analysis of the Otx-a enhancer, which mediates expression in the neural plate of Ciona embryos in response to fibroblast growth factor (FGF) signaling and a localized GATA determinant. We provide evidence that enhancer specificity depends on submaximal recognition motifs having reduced binding affinities ("suboptimization"). Native GATA and ETS (FGF) binding sites contain imperfect matches to consensus motifs. Perfect matches mediate robust but ectopic patterns of gene expression. The native sites are not arranged at optimal intervals, and subtle changes in their spacing alter enhancer activity. Multiple tiers of enhancer suboptimization produce specific, but weak, patterns of expression, and we suggest that clusters of weak enhancers, including certain "superenhancers," circumvent this trade-off in specificity and activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Farley, Emma K -- Olson, Katrina M -- Zhang, Wei -- Brandt, Alexander J -- Rokhsar, Daniel S -- Levine, Michael S -- GM46638/GM/NIGMS NIH HHS/ -- NS076542/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2015 Oct 16;350(6258):325-8. doi: 10.1126/science.aac6948.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cell Biology, Division of Genetics, Genomics and Development, Center for Integrative Genomics, University of California, Berkeley, CA 94720-3200, USA. Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ 08544, USA. msl2@princeton.edu ekfarley@princeton.edu. ; Department of Molecular and Cell Biology, Division of Genetics, Genomics and Development, Center for Integrative Genomics, University of California, Berkeley, CA 94720-3200, USA. Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ 08544, USA. ; Department of Medicine, University of California, San Diego, CA 92093-0688, USA. ; Department of Chemistry, University of California, Berkeley, CA 94720-3200, USA. ; Department of Molecular and Cell Biology, Division of Genetics, Genomics and Development, Center for Integrative Genomics, University of California, Berkeley, CA 94720-3200, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26472909" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding Sites ; Ciona intestinalis/genetics/*growth & development ; Consensus Sequence ; Enhancer Elements, Genetic/genetics/*physiology ; Fas-Associated Death Domain Protein/metabolism ; Fibroblast Growth Factors/*metabolism ; GATA Transcription Factors/*metabolism ; *Gene Expression Regulation, Developmental ; Molecular Sequence Data ; Organ Specificity/genetics/physiology ; Otx Transcription Factors/*metabolism
    Print ISSN: 0036-8075
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  • 25
    Publication Date: 2015-01-13
    Description: NADPH/NADP(+) (the reduced form of NADP(+)/nicotinamide adenine dinucleotide phosphate) homeostasis is critical for countering oxidative stress in cells. Nicotinamide nucleotide transhydrogenase (TH), a membrane enzyme present in both bacteria and mitochondria, couples the proton motive force to the generation of NADPH. We present the 2.8 A crystal structure of the transmembrane proton channel domain of TH from Thermus thermophilus and the 6.9 A crystal structure of the entire enzyme (holo-TH). The membrane domain crystallized as a symmetric dimer, with each protomer containing a putative proton channel. The holo-TH is a highly asymmetric dimer with the NADP(H)-binding domain (dIII) in two different orientations. This unusual arrangement suggests a catalytic mechanism in which the two copies of dIII alternatively function in proton translocation and hydride transfer.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4479213/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4479213/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Leung, Josephine H -- Schurig-Briccio, Lici A -- Yamaguchi, Mutsuo -- Moeller, Arne -- Speir, Jeffrey A -- Gennis, Robert B -- Stout, Charles D -- 1R01GM103838-01A1/GM/NIGMS NIH HHS/ -- 5R01GM061545/GM/NIGMS NIH HHS/ -- GM073197/GM/NIGMS NIH HHS/ -- GM095600/GM/NIGMS NIH HHS/ -- P41 GM103310/GM/NIGMS NIH HHS/ -- P41GM103310/GM/NIGMS NIH HHS/ -- R01 GM061545/GM/NIGMS NIH HHS/ -- R01 GM095600/GM/NIGMS NIH HHS/ -- R01 GM103838/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2015 Jan 9;347(6218):178-81. doi: 10.1126/science.1260451.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA. ; Department of Biochemistry, University of Illinois, Urbana, IL 61801, USA. ; National Resource for Automated Molecular Microscopy, The Scripps Research Institute, La Jolla, CA 92037, USA. ; Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA. dave@scripps.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25574024" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Crystallography, X-Ray ; Molecular Sequence Data ; NADP Transhydrogenases/*chemistry ; Protein Multimerization ; Protein Structure, Tertiary ; *Protons ; Thermus thermophilus/enzymology
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  • 26
    Publication Date: 2015-07-15
    Description: The carnivoran giant panda has a specialized bamboo diet, to which its alimentary tract is poorly adapted. Measurements of daily energy expenditure across five captive and three wild pandas averaged 5.2 megajoules (MJ)/day, only 37.7% of the predicted value (13.8 MJ/day). For the wild pandas, the mean was 6.2 MJ/day, or 45% of the mammalian expectation. Pandas achieve this exceptionally low expenditure in part by reduced sizes of several vital organs and low physical activity. In addition, circulating levels of thyroid hormones thyroxine (T4) and triiodothyronine (T3) averaged 46.9 and 64%, respectively, of the levels expected for a eutherian mammal of comparable size. A giant panda-unique mutation in the DUOX2 gene, critical for thyroid hormone synthesis, might explain these low thyroid hormone levels. A combination of morphological, behavioral, physiological, and genetic adaptations, leading to low energy expenditure, likely enables giant pandas to survive on a bamboo diet.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nie, Yonggang -- Speakman, John R -- Wu, Qi -- Zhang, Chenglin -- Hu, Yibo -- Xia, Maohua -- Yan, Li -- Hambly, Catherine -- Wang, Lu -- Wei, Wei -- Zhang, Jinguo -- Wei, Fuwen -- New York, N.Y. -- Science. 2015 Jul 10;349(6244):171-4. doi: 10.1126/science.aab2413.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China. ; State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China. Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, Scotland, UK. ; Beijing Key Laboratory of Captive Wildlife Technologies, Beijing Zoo, Beijing, China. ; Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, Scotland, UK. ; State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China. ; Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China. weifw@ioz.ac.cn.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26160943" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Body Temperature ; Cattle ; Chromosomes, Human, Pair 15/genetics ; Diet/veterinary ; Dogs ; *Eating ; Energy Metabolism/genetics/*physiology ; Gastrointestinal Tract ; Genetic Variation ; Humans ; Mice ; Molecular Sequence Data ; Motor Activity ; NADPH Oxidase/*genetics ; Organ Size ; Sasa ; Thyroxine/blood ; Triiodothyronine/blood ; Ursidae/anatomy & histology/*genetics/*physiology
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  • 27
    Publication Date: 2015-01-31
    Description: The 18-kilodalton translocator protein (TSPO), proposed to be a key player in cholesterol transport into mitochondria, is highly expressed in steroidogenic tissues, metastatic cancer, and inflammatory and neurological diseases such as Alzheimer's and Parkinson's. TSPO ligands, including benzodiazepine drugs, are implicated in regulating apoptosis and are extensively used in diagnostic imaging. We report crystal structures (at 1.8, 2.4, and 2.5 angstrom resolution) of TSPO from Rhodobacter sphaeroides and a mutant that mimics the human Ala(147)--〉Thr(147) polymorphism associated with psychiatric disorders and reduced pregnenolone production. Crystals obtained in the lipidic cubic phase reveal the binding site of an endogenous porphyrin ligand and conformational effects of the mutation. The three crystal structures show the same tightly interacting dimer and provide insights into the controversial physiological role of TSPO and how the mutation affects cholesterol binding.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Fei -- Liu, Jian -- Zheng, Yi -- Garavito, R Michael -- Ferguson-Miller, Shelagh -- ACB-12002/PHS HHS/ -- AGM-12006/PHS HHS/ -- GM094625/GM/NIGMS NIH HHS/ -- GM26916/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2015 Jan 30;347(6221):555-8. doi: 10.1126/science.1260590.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824, USA. ; Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824, USA. fergus20@msu.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25635101" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacterial Proteins/*chemistry/*metabolism ; Binding Sites ; Cholesterol/metabolism ; Crystallography, X-Ray ; Humans ; Hydrogen Bonding ; Isoquinolines/metabolism ; Ligands ; Membrane Transport Proteins/*chemistry/*metabolism ; Models, Molecular ; Molecular Sequence Data ; Mutant Proteins/chemistry ; Polymorphism, Single Nucleotide ; Porphyrins/metabolism ; Protein Conformation ; Protein Multimerization ; Protein Structure, Secondary ; Protoporphyrins/metabolism ; Receptors, GABA/chemistry/genetics ; Rhodobacter sphaeroides/*chemistry
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 28
    Publication Date: 2015-06-06
    Description: Retroviruses depend on self-assembly of their capsid proteins (core particle) to yield infectious mature virions. Despite the essential role of the retroviral core, its high polymorphism has hindered high-resolution structural analyses. Here, we report the x-ray structure of the native capsid (CA) protein from bovine leukemia virus. CA is organized as hexamers that deviate substantially from sixfold symmetry, yet adjust to make two-dimensional pseudohexagonal arrays that mimic mature retroviral cores. Intra- and interhexameric quasi-equivalent contacts are uncovered, with flexible trimeric lateral contacts among hexamers, yet preserving very similar dimeric interfaces making the lattice. The conformation of each capsid subunit in the hexamer is therefore dictated by long-range interactions, revealing how the hexamers can also assemble into closed core particles, a relevant feature of retrovirus biology.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Obal, G -- Trajtenberg, F -- Carrion, F -- Tome, L -- Larrieux, N -- Zhang, X -- Pritsch, O -- Buschiazzo, A -- New York, N.Y. -- Science. 2015 Jul 3;349(6243):95-8. doi: 10.1126/science.aaa5182. Epub 2015 Jun 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut Pasteur de Montevideo, Unit of Protein Biophysics, Mataojo 2020, 11400, Montevideo, Uruguay. Departamento de Inmunobiologia, Facultad de Medicina, Universidad de la Republica, Avenida General Flores 2125, 11800, Montevideo, Uruguay. ; Institut Pasteur de Montevideo, Unit of Protein Crystallography, Mataojo 2020, 11400, Montevideo, Uruguay. ; Institut Pasteur de Montevideo, Unit of Protein Biophysics, Mataojo 2020, 11400, Montevideo, Uruguay. ; Institut Pasteur, Unite de Virologie Structurale, Departement de Virologie and CNRS Unite Mixte de Recherche 3569, 28, Rue du Docteur Roux, 75015, Paris, France. ; Institut Pasteur de Montevideo, Unit of Protein Biophysics, Mataojo 2020, 11400, Montevideo, Uruguay. Departamento de Inmunobiologia, Facultad de Medicina, Universidad de la Republica, Avenida General Flores 2125, 11800, Montevideo, Uruguay. pritsch@pasteur.edu.uy alebus@pasteur.edu.uy. ; Institut Pasteur de Montevideo, Unit of Protein Crystallography, Mataojo 2020, 11400, Montevideo, Uruguay. Institut Pasteur, Department of Structural Biology and Chemistry, 25, Rue du Dr Roux, 75015, Paris, France. pritsch@pasteur.edu.uy alebus@pasteur.edu.uy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26044299" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Capsid/*chemistry ; Capsid Proteins/*chemistry/genetics ; Cattle ; Crystallography, X-Ray ; Leukemia Virus, Bovine/*chemistry/genetics ; Molecular Sequence Data ; Mutation ; Protein Multimerization ; Protein Structure, Secondary
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  • 29
    Publication Date: 2015-08-08
    Description: Cytoplasmic aggregation of TDP-43, accompanied by its nuclear clearance, is a key common pathological hallmark of amyotrophic lateral sclerosis and frontotemporal dementia (ALS-FTD). However, a limited understanding of this RNA-binding protein (RBP) impedes the clarification of pathogenic mechanisms underlying TDP-43 proteinopathy. In contrast to RBPs that regulate splicing of conserved exons, we found that TDP-43 repressed the splicing of nonconserved cryptic exons, maintaining intron integrity. When TDP-43 was depleted from mouse embryonic stem cells, these cryptic exons were spliced into messenger RNAs, often disrupting their translation and promoting nonsense-mediated decay. Moreover, enforced repression of cryptic exons prevented cell death in TDP-43-deficient cells. Furthermore, repression of cryptic exons was impaired in ALS-FTD cases, suggesting that this splicing defect could potentially underlie TDP-43 proteinopathy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ling, Jonathan P -- Pletnikova, Olga -- Troncoso, Juan C -- Wong, Philip C -- P50AG05146/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2015 Aug 7;349(6248):650-5. doi: 10.1126/science.aab0983.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21205-2196, USA. ; Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21205-2196, USA. Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205-2196, USA. ; Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21205-2196, USA. Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205-2196, USA. wong@jhmi.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26250685" target="_blank"〉PubMed〈/a〉
    Keywords: Amyotrophic Lateral Sclerosis/*genetics ; Animals ; Base Sequence ; Cells, Cultured ; Cysteine Endopeptidases/genetics ; DNA-Binding Proteins/genetics/*physiology ; Embryonic Stem Cells ; Exons/*genetics ; Frontotemporal Dementia/*genetics ; Gene Knockout Techniques ; HeLa Cells ; Humans ; Mice ; Molecular Sequence Data ; Protein Isoforms/genetics ; *RNA Splicing ; RNA Stability ; RNA, Messenger/metabolism ; Sequence Analysis, DNA
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  • 30
    Publication Date: 2015-04-18
    Description: Protective CD8(+) T cell-mediated immunity requires a massive expansion in cell number and the development of long-lived memory cells. Using forward genetics in mice, we identified an orphan protein named lymphocyte expansion molecule (LEM) that promoted antigen-dependent CD8(+) T cell proliferation, effector function, and memory cell generation in response to infection with lymphocytic choriomeningitis virus. Generation of LEM-deficient mice confirmed these results. Through interaction with CR6 interacting factor (CRIF1), LEM controlled the levels of oxidative phosphorylation (OXPHOS) complexes and respiration, resulting in the production of pro-proliferative mitochondrial reactive oxygen species (mROS). LEM provides a link between immune activation and the expansion of protective CD8(+) T cells driven by OXPHOS and represents a pathway for the restoration of long-term protective immunity based on metabolically modified cytotoxic CD8(+) T cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Okoye, Isobel -- Wang, Lihui -- Pallmer, Katharina -- Richter, Kirsten -- Ichimura, Takahuru -- Haas, Robert -- Crouse, Josh -- Choi, Onjee -- Heathcote, Dean -- Lovo, Elena -- Mauro, Claudio -- Abdi, Reza -- Oxenius, Annette -- Rutschmann, Sophie -- Ashton-Rickardt, Philip G -- A9995/Cancer Research UK/United Kingdom -- AI091930/AI/NIAID NIH HHS/ -- AI45108/AI/NIAID NIH HHS/ -- FS/12/38/29640/British Heart Foundation/United Kingdom -- G0700795/Medical Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2015 May 29;348(6238):995-1001. doi: 10.1126/science.aaa7516. Epub 2015 Apr 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Immunobiology, Division of Inflammation and Immunology, Department of Medicine, Faculty of Medicine, Imperial College London, Exhibition Road, London SW7 2AZ, UK. ; Institute of Microbiology, Eidgenossische Technische Hochschule Zurich (ETHZ), Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland. ; Transplantation Research Center, Brigham and Women's Hospital, Harvard Medical School, 221 Longwood Avenue, Boston, MA 02215, USA. ; William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, UK. ; Section of Immunobiology, Division of Inflammation and Immunology, Department of Medicine, Faculty of Medicine, Imperial College London, Exhibition Road, London SW7 2AZ, UK. Transplantation Research Center, Brigham and Women's Hospital, Harvard Medical School, 221 Longwood Avenue, Boston, MA 02215, USA. p.ashton-rickardt@imperial.ac.uk.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25883318" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CD8-Positive T-Lymphocytes/*immunology/*metabolism ; Cell Cycle Proteins/metabolism ; Cell Respiration ; Immunity, Cellular ; *Immunologic Memory ; Lymphocytic Choriomeningitis/immunology ; Lymphocytic choriomeningitis virus/immunology ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Mitochondria/*metabolism ; Mitochondrial Proteins/genetics/*metabolism ; Molecular Sequence Data ; Oxidative Phosphorylation ; Reactive Oxygen Species/metabolism
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  • 31
    Publication Date: 2015-06-27
    Description: Cardiac progenitor cells are multipotent and give rise to cardiac endothelium, smooth muscle, and cardiomyocytes. Here, we define and characterize the cardiomyoblast intermediate that is committed to the cardiomyocyte fate, and we characterize the niche signals that regulate commitment. Cardiomyoblasts express Hopx, which functions to coordinate local Bmp signals to inhibit the Wnt pathway, thus promoting cardiomyogenesis. Hopx integrates Bmp and Wnt signaling by physically interacting with activated Smads and repressing Wnt genes. The identification of the committed cardiomyoblast that retains proliferative potential will inform cardiac regenerative therapeutics. In addition, Bmp signals characterize adult stem cell niches in other tissues where Hopx-mediated inhibition of Wnt is likely to contribute to stem cell quiescence and to explain the role of Hopx as a tumor suppressor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jain, Rajan -- Li, Deqiang -- Gupta, Mudit -- Manderfield, Lauren J -- Ifkovits, Jamie L -- Wang, Qiaohong -- Liu, Feiyan -- Liu, Ying -- Poleshko, Andrey -- Padmanabhan, Arun -- Raum, Jeffrey C -- Li, Li -- Morrisey, Edward E -- Lu, Min Min -- Won, Kyoung-Jae -- Epstein, Jonathan A -- 5-T32-GM-007170/GM/NIGMS NIH HHS/ -- K08 HL119553/HL/NHLBI NIH HHS/ -- K08 HL119553-02/HL/NHLBI NIH HHS/ -- R01 HL071546/HL/NHLBI NIH HHS/ -- U01 HL100405/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2015 Jun 26;348(6242):aaa6071. doi: 10.1126/science.aaa6071.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell and Developmental Biology, Penn Cardiovascular Institute, Institute of Regenerative Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA. ; Department of Genetics, Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA. ; Department of Cell and Developmental Biology, Penn Cardiovascular Institute, Institute of Regenerative Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA. epsteinj@upenn.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26113728" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Bone Morphogenetic Proteins/genetics/*metabolism ; Cell Lineage/genetics ; Gene Expression ; *Gene Expression Regulation, Developmental ; Heart/*embryology ; Homeodomain Proteins/genetics/*metabolism ; Mice ; Mice, Mutant Strains ; Molecular Sequence Data ; Muscle, Smooth/cytology/metabolism ; Myoblasts, Cardiac/cytology/*metabolism ; Organogenesis/*genetics ; Stem Cell Niche/genetics/physiology ; Tumor Suppressor Proteins/genetics/*metabolism ; Wnt Signaling Pathway/*genetics
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  • 32
    Publication Date: 2015-01-09
    Description: The mechanistic target of rapamycin complex 1 (mTORC1) protein kinase is a master growth regulator that responds to multiple environmental cues. Amino acids stimulate, in a Rag-, Ragulator-, and vacuolar adenosine triphosphatase-dependent fashion, the translocation of mTORC1 to the lysosomal surface, where it interacts with its activator Rheb. Here, we identify SLC38A9, an uncharacterized protein with sequence similarity to amino acid transporters, as a lysosomal transmembrane protein that interacts with the Rag guanosine triphosphatases (GTPases) and Ragulator in an amino acid-sensitive fashion. SLC38A9 transports arginine with a high Michaelis constant, and loss of SLC38A9 represses mTORC1 activation by amino acids, particularly arginine. Overexpression of SLC38A9 or just its Ragulator-binding domain makes mTORC1 signaling insensitive to amino acid starvation but not to Rag activity. Thus, SLC38A9 functions upstream of the Rag GTPases and is an excellent candidate for being an arginine sensor for the mTORC1 pathway.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4295826/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4295826/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Shuyu -- Tsun, Zhi-Yang -- Wolfson, Rachel L -- Shen, Kuang -- Wyant, Gregory A -- Plovanich, Molly E -- Yuan, Elizabeth D -- Jones, Tony D -- Chantranupong, Lynne -- Comb, William -- Wang, Tim -- Bar-Peled, Liron -- Zoncu, Roberto -- Straub, Christoph -- Kim, Choah -- Park, Jiwon -- Sabatini, Bernardo L -- Sabatini, David M -- AI47389/AI/NIAID NIH HHS/ -- F30 CA180754/CA/NCI NIH HHS/ -- F31 AG044064/AG/NIA NIH HHS/ -- F31 CA180271/CA/NCI NIH HHS/ -- R01 CA103866/CA/NCI NIH HHS/ -- R37 AI047389/AI/NIAID NIH HHS/ -- T32 GM007287/GM/NIGMS NIH HHS/ -- T32 GM007753/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Jan 9;347(6218):188-94. doi: 10.1126/science.1257132. Epub 2015 Jan 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research and Massachusetts Institute of Technology, Department of Biology, 9 Cambridge Center, Cambridge, MA 02142, USA. Howard Hughes Medical Institute, Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. Koch Institute for Integrative Cancer Research, 77 Massachusetts Avenue, Cambridge, MA 02139, USA. Broad Institute of Harvard and Massachusetts Institute of Technology, 7 Cambridge Center, Cambridge, MA 02142, USA. ; Harvard Medical School, 260 Longwood Avenue, Boston, MA 02115, USA. ; Department of Neurobiology, Howard Hughes Medical Institute, Harvard Medical School, 220 Longwood Avenue, Boston, MA 02115, USA. ; Whitehead Institute for Biomedical Research and Massachusetts Institute of Technology, Department of Biology, 9 Cambridge Center, Cambridge, MA 02142, USA. Howard Hughes Medical Institute, Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. Koch Institute for Integrative Cancer Research, 77 Massachusetts Avenue, Cambridge, MA 02139, USA. Broad Institute of Harvard and Massachusetts Institute of Technology, 7 Cambridge Center, Cambridge, MA 02142, USA. sabatini@wi.mit.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25567906" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Transport Systems/chemistry/genetics/*metabolism ; Arginine/deficiency/*metabolism ; HEK293 Cells ; Humans ; Lysosomes/*enzymology ; Molecular Sequence Data ; Monomeric GTP-Binding Proteins/*metabolism ; Multiprotein Complexes/*metabolism ; Protein Structure, Tertiary ; Signal Transduction ; TOR Serine-Threonine Kinases/*metabolism
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  • 33
    Publication Date: 2015-02-01
    Description: During virus infection, the adaptor proteins MAVS and STING transduce signals from the cytosolic nucleic acid sensors RIG-I and cGAS, respectively, to induce type I interferons (IFNs) and other antiviral molecules. Here we show that MAVS and STING harbor two conserved serine and threonine clusters that are phosphorylated by the kinases IKK and/or TBK1 in response to stimulation. Phosphorylated MAVS and STING then bind to a positively charged surface of interferon regulatory factor 3 (IRF3) and thereby recruit IRF3 for its phosphorylation and activation by TBK1. We further show that TRIF, an adaptor protein in Toll-like receptor signaling, activates IRF3 through a similar phosphorylation-dependent mechanism. These results reveal that phosphorylation of innate adaptor proteins is an essential and conserved mechanism that selectively recruits IRF3 to activate the type I IFN pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Siqi -- Cai, Xin -- Wu, Jiaxi -- Cong, Qian -- Chen, Xiang -- Li, Tuo -- Du, Fenghe -- Ren, Junyao -- Wu, You-Tong -- Grishin, Nick V -- Chen, Zhijian J -- AI-93967/AI/NIAID NIH HHS/ -- GM-094575/GM/NIGMS NIH HHS/ -- GM-63692/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Mar 13;347(6227):aaa2630. doi: 10.1126/science.aaa2630. Epub 2015 Jan 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA. ; Departments of Biophysics and Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA. ; Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA. Howard Hughes Medical Institute (HHMI), University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA. ; Departments of Biophysics and Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA. Howard Hughes Medical Institute (HHMI), University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA. ; Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA. Howard Hughes Medical Institute (HHMI), University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA. zhijian.chen@utsouthwestern.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25636800" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/chemistry/*metabolism ; Adaptor Proteins, Vesicular Transport/chemistry/*metabolism ; Amino Acid Sequence ; Animals ; Cell Line ; Humans ; I-kappa B Kinase/metabolism ; Interferon Regulatory Factor-3/chemistry/*metabolism ; Interferon-alpha/biosynthesis ; Interferon-beta/biosynthesis ; Membrane Proteins/chemistry/*metabolism ; Mice ; Molecular Sequence Data ; Phosphorylation ; Protein Binding ; Protein Multimerization ; Protein-Serine-Threonine Kinases/metabolism ; Recombinant Proteins/metabolism ; Sendai virus/physiology ; Serine/metabolism ; Signal Transduction ; Ubiquitination ; Vesiculovirus/physiology
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  • 34
    Publication Date: 2015-12-19
    Description: Voltage-gated sodium (Nav) channels propagate action potentials in excitable cells. Accordingly, Nav channels are therapeutic targets for many cardiovascular and neurological disorders. Selective inhibitors have been challenging to design because the nine mammalian Nav channel isoforms share high sequence identity and remain recalcitrant to high-resolution structural studies. Targeting the human Nav1.7 channel involved in pain perception, we present a protein-engineering strategy that has allowed us to determine crystal structures of a novel receptor site in complex with isoform-selective antagonists. GX-936 and related inhibitors bind to the activated state of voltage-sensor domain IV (VSD4), where their anionic aryl sulfonamide warhead engages the fourth arginine gating charge on the S4 helix. By opposing VSD4 deactivation, these compounds inhibit Nav1.7 through a voltage-sensor trapping mechanism, likely by stabilizing inactivated states of the channel. Residues from the S2 and S3 helices are key determinants of isoform selectivity, and bound phospholipids implicate the membrane as a modulator of channel function and pharmacology. Our results help to elucidate the molecular basis of voltage sensing and establish structural blueprints to design selective Nav channel antagonists.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ahuja, Shivani -- Mukund, Susmith -- Deng, Lunbin -- Khakh, Kuldip -- Chang, Elaine -- Ho, Hoangdung -- Shriver, Stephanie -- Young, Clint -- Lin, Sophia -- Johnson, J P Jr -- Wu, Ping -- Li, Jun -- Coons, Mary -- Tam, Christine -- Brillantes, Bobby -- Sampang, Honorio -- Mortara, Kyle -- Bowman, Krista K -- Clark, Kevin R -- Estevez, Alberto -- Xie, Zhiwei -- Verschoof, Henry -- Grimwood, Michael -- Dehnhardt, Christoph -- Andrez, Jean-Christophe -- Focken, Thilo -- Sutherlin, Daniel P -- Safina, Brian S -- Starovasnik, Melissa A -- Ortwine, Daniel F -- Franke, Yvonne -- Cohen, Charles J -- Hackos, David H -- Koth, Christopher M -- Payandeh, Jian -- New York, N.Y. -- Science. 2015 Dec 18;350(6267):aac5464. doi: 10.1126/science.aac5464.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Structural Biology, Genentech Inc., South San Francisco, CA 94080, USA. ; Department of Neuroscience, Genentech Inc., South San Francisco, CA 94080, USA. ; Department of Biology, Xenon Pharmaceuticals Inc., Burnaby, British Columbia, V5G 4W8, Canada. ; Department of Discovery Chemistry, Genentech Inc., South San Francisco, CA 94080, USA. ; Department of Biochemical and Cellular Pharmacology, Genentech Inc., South San Francisco, CA 94080, USA. ; Department of Chemistry, Xenon Pharmaceuticals Inc., Burnaby, British Columbia, V5G 4W8, Canada. ; Department of Neuroscience, Genentech Inc., South San Francisco, CA 94080, USA. hackos.david@gene.com koth.christopher@gene.com payandeh.jian@gene.com. ; Department of Structural Biology, Genentech Inc., South San Francisco, CA 94080, USA. hackos.david@gene.com koth.christopher@gene.com payandeh.jian@gene.com.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26680203" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cell Membrane/chemistry ; Crystallization/methods ; Crystallography, X-Ray ; DNA Mutational Analysis ; Humans ; Models, Molecular ; Molecular Sequence Data ; NAV1.7 Voltage-Gated Sodium Channel/*chemistry/genetics ; Pain Perception/drug effects ; Protein Engineering ; Protein Isoforms/antagonists & inhibitors/chemistry ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Sodium Channel Blockers/*chemistry/*pharmacology ; Sulfonamides/*chemistry/*pharmacology ; Thiadiazoles/*chemistry/*pharmacology
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  • 35
    Publication Date: 2015-06-13
    Description: The spindle checkpoint of the cell division cycle senses kinetochores that are not attached to microtubules and prevents precocious onset of anaphase, which can lead to aneuploidy. The nuclear division cycle 80 complex (Ndc80C) is a major microtubule receptor at the kinetochore. Ndc80C also mediates the kinetochore recruitment of checkpoint proteins. We found that the checkpoint protein kinase monopolar spindle 1 (Mps1) directly bound to Ndc80C through two independent interactions. Both interactions involved the microtubule-binding surfaces of Ndc80C and were directly inhibited in the presence of microtubules. Elimination of one such interaction in human cells caused checkpoint defects expected from a failure to detect unattached kinetochores. Competition between Mps1 and microtubules for Ndc80C binding thus constitutes a direct mechanism for the detection of unattached kinetochores.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ji, Zhejian -- Gao, Haishan -- Yu, Hongtao -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Jun 12;348(6240):1260-4. doi: 10.1126/science.aaa4029.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Pharmacology, University of Texas Southwestern Medical Center, 6001 Forest Park Road, Dallas, TX 74390, USA. ; Howard Hughes Medical Institute, Department of Pharmacology, University of Texas Southwestern Medical Center, 6001 Forest Park Road, Dallas, TX 74390, USA. hongtao.yu@utsouthwestern.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26068854" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding, Competitive ; *Cell Cycle ; Cell Cycle Proteins/genetics/*metabolism ; HeLa Cells ; Humans ; Kinetochores/*metabolism ; Microtubules/*metabolism ; Molecular Sequence Data ; Nuclear Proteins/*metabolism ; Protein Binding ; Protein-Serine-Threonine Kinases/genetics/*metabolism ; Protein-Tyrosine Kinases/genetics/*metabolism
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  • 36
    Publication Date: 2015-07-25
    Description: Lipid transfer between cell membrane bilayers at contacts between the endoplasmic reticulum (ER) and other membranes help to maintain membrane lipid homeostasis. We found that two similar ER integral membrane proteins, oxysterol-binding protein (OSBP)-related protein 5 (ORP5) and ORP8, tethered the ER to the plasma membrane (PM) via the interaction of their pleckstrin homology domains with phosphatidylinositol 4-phosphate (PI4P) in this membrane. Their OSBP-related domains (ORDs) harbored either PI4P or phosphatidylserine (PS) and exchanged these lipids between bilayers. Gain- and loss-of-function experiments showed that ORP5 and ORP8 could mediate PI4P/PS countertransport between the ER and the PM, thus delivering PI4P to the ER-localized PI4P phosphatase Sac1 for degradation and PS from the ER to the PM. This exchange helps to control plasma membrane PI4P levels and selectively enrich PS in the PM.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4638224/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4638224/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chung, Jeeyun -- Torta, Federico -- Masai, Kaori -- Lucast, Louise -- Czapla, Heather -- Tanner, Lukas B -- Narayanaswamy, Pradeep -- Wenk, Markus R -- Nakatsu, Fubito -- De Camilli, Pietro -- DA018343/DA/NIDA NIH HHS/ -- DK082700/DK/NIDDK NIH HHS/ -- DK45735/DK/NIDDK NIH HHS/ -- P30 DA018343/DA/NIDA NIH HHS/ -- P30 DK045735/DK/NIDDK NIH HHS/ -- R01 DK082700/DK/NIDDK NIH HHS/ -- R37 NS036251/NS/NINDS NIH HHS/ -- R37NS036251/NS/NINDS NIH HHS/ -- T32 GM007223/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Jul 24;349(6246):428-32. doi: 10.1126/science.aab1370.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Howard Hughes Medical Institute, Kavli Institute for Neuroscience, and Program for Cellular Neuroscience, Neurodegeneration, and Repair, Yale School of Medicine, New Haven, CT 06520, USA. ; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 117456 Singapore. ; Department of Cell Biology, Howard Hughes Medical Institute, Kavli Institute for Neuroscience, and Program for Cellular Neuroscience, Neurodegeneration, and Repair, Yale School of Medicine, New Haven, CT 06520, USA. pietro.decamilli@yale.edu nakatsu@med.niigata-u.ac.jp.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26206935" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Biological Transport ; Cell Membrane/*metabolism ; Endoplasmic Reticulum/*metabolism ; Gene Knockout Techniques ; HeLa Cells ; Humans ; Molecular Sequence Data ; Phosphatidylinositol Phosphates/*metabolism ; Phosphatidylserines/*metabolism ; Protein Structure, Tertiary ; Receptors, Steroid/chemistry/genetics/*metabolism
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  • 37
    Publication Date: 2015-06-27
    Description: Bacterial adaptive immunity uses CRISPR (clustered regularly interspaced short palindromic repeats)-associated (Cas) proteins together with CRISPR transcripts for foreign DNA degradation. In type II CRISPR-Cas systems, activation of Cas9 endonuclease for DNA recognition upon guide RNA binding occurs by an unknown mechanism. Crystal structures of Cas9 bound to single-guide RNA reveal a conformation distinct from both the apo and DNA-bound states, in which the 10-nucleotide RNA "seed" sequence required for initial DNA interrogation is preordered in an A-form conformation. This segment of the guide RNA is essential for Cas9 to form a DNA recognition-competent structure that is poised to engage double-stranded DNA target sequences. We construe this as convergent evolution of a "seed" mechanism reminiscent of that used by Argonaute proteins during RNA interference in eukaryotes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jiang, Fuguo -- Zhou, Kaihong -- Ma, Linlin -- Gressel, Saskia -- Doudna, Jennifer A -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Jun 26;348(6242):1477-81. doi: 10.1126/science.aab1452.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA. ; Howard Hughes Medical Institute, University of California, Berkeley, CA 94720, USA. ; Max Planck Institute for Biophysical Chemistry, 37077 Gottingen, Germany. ; Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA. Howard Hughes Medical Institute, University of California, Berkeley, CA 94720, USA. California Institute for Quantitative Biosciences, University of California, Berkeley, CA 94720, USA. Department of Chemistry, University of California, Berkeley, CA 94720, USA. Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. Innovative Genomics Initiative, University of California, Berkeley, CA 94720, USA. doudna@berkeley.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26113724" target="_blank"〉PubMed〈/a〉
    Keywords: Argonaute Proteins/*chemistry ; Base Sequence ; *CRISPR-Cas Systems ; Caspase 9/*chemistry/genetics ; *Clustered Regularly Interspaced Short Palindromic Repeats ; Crystallography, X-Ray ; DNA/chemistry ; *DNA Cleavage ; Enzyme Activation ; Evolution, Molecular ; Molecular Sequence Data ; Nucleic Acid Conformation ; Protein Structure, Tertiary ; RNA Interference ; RNA, Guide/*chemistry ; Streptococcus pyogenes/*enzymology
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  • 38
    Publication Date: 2015-10-17
    Description: Polycomb repressive complex 2 (PRC2) catalyzes histone H3K27 trimethylation (H3K27me3), a hallmark of gene silencing. Here we report the crystal structures of an active PRC2 complex of 170 kilodaltons from the yeast Chaetomium thermophilum in both basal and stimulated states, which contain Ezh2, Eed, and the VEFS domain of Suz12 and are bound to a cancer-associated inhibiting H3K27M peptide and a S-adenosyl-l-homocysteine cofactor. The stimulated complex also contains an additional stimulating H3K27me3 peptide. Eed is engulfed by a belt-like structure of Ezh2, and Suz12(VEFS) contacts both of these two subunits to confer an unusual split active SET domain for catalysis. Comparison of PRC2 in the basal and stimulated states reveals a mobile Ezh2 motif that responds to stimulation to allosterically regulate the active site.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jiao, Lianying -- Liu, Xin -- GM114576/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2015 Oct 16;350(6258):aac4383. doi: 10.1126/science.aac4383. Epub 2015 Oct 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cecil H. and Ida Green Center for Reproductive Biology Sciences and Division of Basic Research, Department of Obstetrics and Gynecology and Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA. ; Cecil H. and Ida Green Center for Reproductive Biology Sciences and Division of Basic Research, Department of Obstetrics and Gynecology and Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA. xin.liu@utsouthwestern.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26472914" target="_blank"〉PubMed〈/a〉
    Keywords: Allosteric Regulation ; Amino Acid Sequence ; Catalysis ; Catalytic Domain ; Chaetomium/genetics/*metabolism ; Crystallography, X-Ray ; Fungal Proteins/antagonists & inhibitors/*chemistry/metabolism ; *Gene Silencing ; Histones/*metabolism ; Humans ; Jumonji Domain-Containing Histone Demethylases/metabolism ; Methylation ; Molecular Sequence Data ; Mutation ; Neoplasms/genetics ; Polycomb Repressive Complex 2/antagonists & inhibitors/*chemistry/metabolism ; Protein Structure, Tertiary ; S-Adenosylhomocysteine/chemistry/metabolism ; Transcription, Genetic
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  • 39
    Publication Date: 2015-06-27
    Description: Algal blooms produce large amounts of dimethyl sulfide (DMS), a volatile with a diverse signaling role in marine food webs that is emitted to the atmosphere, where it can affect cloud formation. The algal enzymes responsible for forming DMS from dimethylsulfoniopropionate (DMSP) remain unidentified despite their critical role in the global sulfur cycle. We identified and characterized Alma1, a DMSP lyase from the bloom-forming algae Emiliania huxleyi. Alma1 is a tetrameric, redox-sensitive enzyme of the aspartate racemase superfamily. Recombinant Alma1 exhibits biochemical features identical to the DMSP lyase in E. huxleyi, and DMS released by various E. huxleyi isolates correlates with their Alma1 levels. Sequence homology searches suggest that Alma1 represents a gene family present in major, globally distributed phytoplankton taxa and in other marine organisms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Alcolombri, Uria -- Ben-Dor, Shifra -- Feldmesser, Ester -- Levin, Yishai -- Tawfik, Dan S -- Vardi, Assaf -- New York, N.Y. -- Science. 2015 Jun 26;348(6242):1466-9. doi: 10.1126/science.aab1586.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel. Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot 76100, Israel. ; Bioinformatics and Biological Computing Unit, Biological Services, Weizmann Institute of Science, Rehovot 76100, Israel. ; Nancy and Stephen Grand Israel National Center for Personalized Medicine, Weizmann Institute of Science, Rehovot 76100, Israel. ; Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel. assaf.vardi@weizmann.ac.il dan.tawfik@weizmann.ac.il. ; Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot 76100, Israel. assaf.vardi@weizmann.ac.il dan.tawfik@weizmann.ac.il.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26113722" target="_blank"〉PubMed〈/a〉
    Keywords: Algal Proteins/*chemistry/classification/genetics ; Amino Acid Sequence ; Bacteria/enzymology/genetics ; Carbon-Sulfur Lyases/*chemistry/classification/genetics ; Haptophyta/*enzymology/genetics ; Molecular Sequence Data ; Phylogeny ; Phytoplankton/enzymology ; RNA, Messenger/biosynthesis ; Recombinant Proteins/chemistry ; Sulfides/*metabolism
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  • 40
    Publication Date: 2015-09-26
    Description: Mitochondria fulfill central functions in cellular energetics, metabolism, and signaling. The outer membrane translocator complex (the TOM complex) imports most mitochondrial proteins, but its architecture is unknown. Using a cross-linking approach, we mapped the active translocator down to single amino acid residues, revealing different transport paths for preproteins through the Tom40 channel. An N-terminal segment of Tom40 passes from the cytosol through the channel to recruit chaperones from the intermembrane space that guide the transfer of hydrophobic preproteins. The translocator contains three Tom40 beta-barrel channels sandwiched between a central alpha-helical Tom22 receptor cluster and external regulatory Tom proteins. The preprotein-translocating trimeric complex exchanges with a dimeric isoform to assemble new TOM complexes. Dynamic coupling of alpha-helical receptors, beta-barrel channels, and chaperones generates a versatile machinery that transports about 1000 different proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shiota, Takuya -- Imai, Kenichiro -- Qiu, Jian -- Hewitt, Victoria L -- Tan, Khershing -- Shen, Hsin-Hui -- Sakiyama, Noriyuki -- Fukasawa, Yoshinori -- Hayat, Sikander -- Kamiya, Megumi -- Elofsson, Arne -- Tomii, Kentaro -- Horton, Paul -- Wiedemann, Nils -- Pfanner, Nikolaus -- Lithgow, Trevor -- Endo, Toshiya -- New York, N.Y. -- Science. 2015 Sep 25;349(6255):1544-8. doi: 10.1126/science.aac6428.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biomedicine Discovery Institute and Department of Microbiology, Monash University, Melbourne, Victoria 3800, Australia. Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa-ku, Nagoya 464-8602, Japan. ; Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology, 2-4-7 Aomi, Koto-ku, Tokyo 135-0064, Japan. ; Institut fur Biochemie und Molekularbiologie, Universitat Freiburg, 79104 Freiburg, Germany. ; Biomedicine Discovery Institute and Department of Microbiology, Monash University, Melbourne, Victoria 3800, Australia. ; Department of Biochemistry and Biophysics and Science for Life Laboratory, Stockholm University, Box 1031, 17121 Solna, Sweden. ; Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa-ku, Nagoya 464-8602, Japan. ; Institut fur Biochemie und Molekularbiologie, Universitat Freiburg, 79104 Freiburg, Germany. Centre for Biological Signalling Studies, Universitat Freiburg, 79104 Freiburg, Germany. ; Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa-ku, Nagoya 464-8602, Japan. Faculty of Life Sciences, Kyoto Sangyo University, Kamigamo-motoyama, Kita-ku, Kyoto 603-8555, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26404837" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cytosol/metabolism ; Mitochondrial Membrane Transport Proteins/*chemistry/metabolism ; Molecular Chaperones ; Molecular Sequence Data ; Protein Multimerization ; Protein Structure, Secondary ; Protein Transport ; Saccharomyces cerevisiae Proteins/*chemistry/metabolism
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  • 41
    Publication Date: 2015-02-24
    Description: Notch receptors guide mammalian cell fate decisions by engaging the proteins Jagged and Delta-like (DLL). The 2.3 angstrom resolution crystal structure of the interacting regions of the Notch1-DLL4 complex reveals a two-site, antiparallel binding orientation assisted by Notch1 O-linked glycosylation. Notch1 epidermal growth factor-like repeats 11 and 12 interact with the DLL4 Delta/Serrate/Lag-2 (DSL) domain and module at the N-terminus of Notch ligands (MNNL) domains, respectively. Threonine and serine residues on Notch1 are functionalized with O-fucose and O-glucose, which act as surrogate amino acids by making specific, and essential, contacts to residues on DLL4. The elucidation of a direct chemical role for O-glycans in Notch1 ligand engagement demonstrates how, by relying on posttranslational modifications of their ligand binding sites, Notch proteins have linked their functional capacity to developmentally regulated biosynthetic pathways.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4445638/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4445638/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Luca, Vincent C -- Jude, Kevin M -- Pierce, Nathan W -- Nachury, Maxence V -- Fischer, Suzanne -- Garcia, K Christopher -- 1R01-GM097015/GM/NIGMS NIH HHS/ -- R01 GM097015/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Feb 20;347(6224):847-53. doi: 10.1126/science.1261093.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA 94305, USA. Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA 94305, USA. Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA. ; Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA 94305, USA. ; Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA 94305, USA. Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA 94305, USA. Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA. kcgarcia@stanford.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25700513" target="_blank"〉PubMed〈/a〉
    Keywords: Alagille Syndrome/genetics ; Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Cell Line ; Conserved Sequence ; Crystallography, X-Ray ; Fucose/chemistry ; Glucose/chemistry ; Glycosylation ; Intracellular Signaling Peptides and Proteins/*chemistry/genetics ; Ligands ; Membrane Proteins/*chemistry/genetics/ultrastructure ; Molecular Sequence Data ; Molecular Targeted Therapy ; Polysaccharides/chemistry ; Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/drug therapy/genetics ; Protein Binding ; Protein Structure, Tertiary ; Rats ; Receptor, Notch1/*chemistry/genetics/ultrastructure ; Serine/chemistry/genetics ; Threonine/chemistry/genetics
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  • 42
    Publication Date: 2015-06-27
    Description: Morphinan alkaloids from the opium poppy are used for pain relief. The direction of metabolites to morphinan biosynthesis requires isomerization of (S)- to (R)-reticuline. Characterization of high-reticuline poppy mutants revealed a genetic locus, designated STORR [(S)- to (R)-reticuline] that encodes both cytochrome P450 and oxidoreductase modules, the latter belonging to the aldo-keto reductase family. Metabolite analysis of mutant alleles and heterologous expression demonstrate that the P450 module is responsible for the conversion of (S)-reticuline to 1,2-dehydroreticuline, whereas the oxidoreductase module converts 1,2-dehydroreticuline to (R)-reticuline rather than functioning as a P450 redox partner. Proteomic analysis confirmed that these two modules are contained on a single polypeptide in vivo. This modular assembly implies a selection pressure favoring substrate channeling. The fusion protein STORR may enable microbial-based morphinan production.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Winzer, Thilo -- Kern, Marcelo -- King, Andrew J -- Larson, Tony R -- Teodor, Roxana I -- Donninger, Samantha L -- Li, Yi -- Dowle, Adam A -- Cartwright, Jared -- Bates, Rachel -- Ashford, David -- Thomas, Jerry -- Walker, Carol -- Bowser, Tim A -- Graham, Ian A -- BB/K018809/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2015 Jul 17;349(6245):309-12. doi: 10.1126/science.aab1852. Epub 2015 Jun 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Novel Agricultural Products, Department of Biology, University of York, York YO10 5DD, UK. ; Bioscience Technology Facility, Department of Biology, University of York, York YO10 5DD, UK. ; GlaxoSmithKline, 1061 Mountain Highway, Post Office Box 168, Boronia, Victoria 3155, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26113639" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Benzylisoquinolines/chemistry/*metabolism ; Cytochrome P-450 Enzyme System/genetics/*metabolism ; Genetic Loci ; Isoquinolines/chemistry/*metabolism ; Molecular Sequence Data ; Morphinans/chemistry/*metabolism ; Mutation ; Oxidation-Reduction ; Papaver/*enzymology/genetics ; Plant Proteins/genetics/*metabolism ; Quaternary Ammonium Compounds/chemistry/*metabolism
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  • 43
    Publication Date: 2015-02-14
    Description: Nucleotide analog inhibitors have shown clinical success in the treatment of hepatitis C virus (HCV) infection, despite an incomplete mechanistic understanding of NS5B, the viral RNA-dependent RNA polymerase. Here we study the details of HCV RNA replication by determining crystal structures of stalled polymerase ternary complexes with enzymes, RNA templates, RNA primers, incoming nucleotides, and catalytic metal ions during both primed initiation and elongation of RNA synthesis. Our analysis revealed that highly conserved active-site residues in NS5B position the primer for in-line attack on the incoming nucleotide. A beta loop and a C-terminal membrane-anchoring linker occlude the active-site cavity in the apo state, retract in the primed initiation assembly to enforce replication of the HCV genome from the 3' terminus, and vacate the active-site cavity during elongation. We investigated the incorporation of nucleotide analog inhibitors, including the clinically active metabolite formed by sofosbuvir, to elucidate key molecular interactions in the active site.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Appleby, Todd C -- Perry, Jason K -- Murakami, Eisuke -- Barauskas, Ona -- Feng, Joy -- Cho, Aesop -- Fox, David 3rd -- Wetmore, Diana R -- McGrath, Mary E -- Ray, Adrian S -- Sofia, Michael J -- Swaminathan, S -- Edwards, Thomas E -- New York, N.Y. -- Science. 2015 Feb 13;347(6223):771-5. doi: 10.1126/science.1259210.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Gilead Sciences, 333 Lakeside Drive, Foster City, CA 94404, USA. todd.appleby@gilead.com tedwards@be4.com. ; Gilead Sciences, 333 Lakeside Drive, Foster City, CA 94404, USA. ; Beryllium, 7869 NE Day Road West, Bainbridge Island, WA 98110, USA. ; Beryllium, 7869 NE Day Road West, Bainbridge Island, WA 98110, USA. todd.appleby@gilead.com tedwards@be4.com.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25678663" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Catalytic Domain ; Conserved Sequence ; Crystallography, X-Ray ; Hepacivirus/enzymology/genetics/*physiology ; Molecular Sequence Data ; Protein Structure, Secondary ; RNA Replicase/*chemistry ; RNA, Viral/*biosynthesis ; Ribonucleotides/*chemistry ; Sofosbuvir ; Uridine Monophosphate/analogs & derivatives/chemistry ; Viral Nonstructural Proteins/*chemistry ; *Virus Replication
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  • 44
    Publication Date: 2015-07-04
    Description: The scent of roses (Rosa x hybrida) is composed of hundreds of volatile molecules. Monoterpenes represent up to 70% percent of the scent content in some cultivars, such as the Papa Meilland rose. Monoterpene biosynthesis in plants relies on plastid-localized terpene synthases. Combining transcriptomic and genetic approaches, we show that the Nudix hydrolase RhNUDX1, localized in the cytoplasm, is part of a pathway for the biosynthesis of free monoterpene alcohols that contribute to fragrance in roses. The RhNUDX1 protein shows geranyl diphosphate diphosphohydrolase activity in vitro and supports geraniol biosynthesis in planta.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Magnard, Jean-Louis -- Roccia, Aymeric -- Caissard, Jean-Claude -- Vergne, Philippe -- Sun, Pulu -- Hecquet, Romain -- Dubois, Annick -- Hibrand-Saint Oyant, Laurence -- Jullien, Frederic -- Nicole, Florence -- Raymond, Olivier -- Huguet, Stephanie -- Baltenweck, Raymonde -- Meyer, Sophie -- Claudel, Patricia -- Jeauffre, Julien -- Rohmer, Michel -- Foucher, Fabrice -- Hugueney, Philippe -- Bendahmane, Mohammed -- Baudino, Sylvie -- New York, N.Y. -- Science. 2015 Jul 3;349(6243):81-3. doi: 10.1126/science.aab0696.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire BVpam, EA3061, Universite de Lyon/Saint-Etienne, 23 Rue du Dr Michelon, F-42000, Saint-Etienne, France. ; Laboratoire BVpam, EA3061, Universite de Lyon/Saint-Etienne, 23 Rue du Dr Michelon, F-42000, Saint-Etienne, France. Laboratoire Reproduction et Developpement des Plantes UMR Institut National de la Recherche Agronomique (INRA)-CNRS, Universite Lyon 1-ENSL, Ecole Normale Superieure de Lyon, 46 Allee d'Italie, 69364 Lyon Cedex 07, France. ; Laboratoire Reproduction et Developpement des Plantes UMR Institut National de la Recherche Agronomique (INRA)-CNRS, Universite Lyon 1-ENSL, Ecole Normale Superieure de Lyon, 46 Allee d'Italie, 69364 Lyon Cedex 07, France. ; INRA, Institut de Recherche en Horticulture et Semences (INRA, AGROCAMPUS-OUEST, Universite d'Angers), SFR 4207 QUASAV, BP 60057, 49071 Beaucouze Cedex, France. ; Genomiques Fonctionnelles d'Arabidopsis, Unite de Recherche en Genomique Vegetale, UMR INRA 1165-Universite d'Evry Val d'Essonne-ERL CNRS 8196, Evry, France. ; INRA, Universite de Strasbourg, UMR 1131 Sante de la Vigne et Qualite du Vin, 28 Rue de Herrlisheim, F-68000 Colmar, France. ; Universite de Strasbourg-CNRS, UMR 7177, Institut Le Bel, 4 Rue Blaise Pascal, 67070 Strasbourg Cedex, France. ; INRA, Universite de Strasbourg, UMR 1131 Sante de la Vigne et Qualite du Vin, 28 Rue de Herrlisheim, F-68000 Colmar, France. sylvie.baudino@univ-st-etienne.fr philippe.hugueney@colmar.inra.fr mohammed.bendahmane@ens-lyon.fr. ; Laboratoire Reproduction et Developpement des Plantes UMR Institut National de la Recherche Agronomique (INRA)-CNRS, Universite Lyon 1-ENSL, Ecole Normale Superieure de Lyon, 46 Allee d'Italie, 69364 Lyon Cedex 07, France. sylvie.baudino@univ-st-etienne.fr philippe.hugueney@colmar.inra.fr mohammed.bendahmane@ens-lyon.fr. ; Laboratoire BVpam, EA3061, Universite de Lyon/Saint-Etienne, 23 Rue du Dr Michelon, F-42000, Saint-Etienne, France. sylvie.baudino@univ-st-etienne.fr philippe.hugueney@colmar.inra.fr mohammed.bendahmane@ens-lyon.fr.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26138978" target="_blank"〉PubMed〈/a〉
    Keywords: Molecular Sequence Data ; Monoterpenes/*metabolism ; *Odors ; Plastids/*enzymology ; Pyrophosphatases/*biosynthesis/genetics ; Rosa/*enzymology/genetics ; Terpenes/*metabolism ; Transcriptome ; Volatile Organic Compounds/*metabolism
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  • 45
    Publication Date: 2015-12-19
    Description: The voltage-gated calcium channel Ca(v)1.1 is engaged in the excitation-contraction coupling of skeletal muscles. The Ca(v)1.1 complex consists of the pore-forming subunit alpha1 and auxiliary subunits alpha2delta, beta, and gamma. We report the structure of the rabbit Ca(v)1.1 complex determined by single-particle cryo-electron microscopy. The four homologous repeats of the alpha1 subunit are arranged clockwise in the extracellular view. The gamma subunit, whose structure resembles claudins, interacts with the voltage-sensing domain of repeat IV (VSD(IV)), whereas the cytosolic beta subunit is located adjacent to VSD(II) of alpha1. The alpha2 subunit interacts with the extracellular loops of repeats I to III through its VWA and Cache1 domains. The structure reveals the architecture of a prototypical eukaryotic Ca(v) channel and provides a framework for understanding the function and disease mechanisms of Ca(v) and Na(v) channels.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, Jianping -- Yan, Zhen -- Li, Zhangqiang -- Yan, Chuangye -- Lu, Shan -- Dong, Mengqiu -- Yan, Nieng -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Dec 18;350(6267):aad2395. doi: 10.1126/science.aad2395.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉State Key Laboratory of Membrane Biology, Tsinghua University, Beijing 100084, China. Tsinghua-Peking Joint Center for Life Sciences, Tsinghua University, Beijing 100084, China. Center for Structural Biology, School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China. ; National Institute of Biological Sciences, Beijing 102206, China. ; State Key Laboratory of Membrane Biology, Tsinghua University, Beijing 100084, China. Tsinghua-Peking Joint Center for Life Sciences, Tsinghua University, Beijing 100084, China. Center for Structural Biology, School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China. nyan@tsinghua.edu.cn.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26680202" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Calcium Channels, L-Type/*chemistry/genetics/isolation & purification ; Cell Membrane/chemistry ; Cryoelectron Microscopy ; Molecular Sequence Data ; Muscle, Skeletal/chemistry ; Protein Multimerization ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Protein Subunits/isolation & purification ; Rabbits
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  • 46
    Publication Date: 2015-12-19
    Description: Speciation, the process by which new biological species arise, involves the evolution of reproductive barriers, such as hybrid sterility or inviability between populations. However, identifying hybrid incompatibility genes remains a key obstacle in understanding the molecular basis of reproductive isolation. We devised a genomic screen, which identified a cell cycle-regulation gene as the cause of male inviability in hybrids resulting from a cross between Drosophila melanogaster and D. simulans. Ablation of the D. simulans allele of this gene is sufficient to rescue the adult viability of hybrid males. This dominantly acting cell cycle regulator causes mitotic arrest and, thereby, inviability of male hybrid larvae. Our genomic method provides a facile means to accelerate the identification of hybrid incompatibility genes in other model and nonmodel systems.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4703311/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4703311/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Phadnis, Nitin -- Baker, EmilyClare P -- Cooper, Jacob C -- Frizzell, Kimberly A -- Hsieh, Emily -- de la Cruz, Aida Flor A -- Shendure, Jay -- Kitzman, Jacob O -- Malik, Harmit S -- 5T32 HD0741/HD/NICHD NIH HHS/ -- HG006283/HG/NHGRI NIH HHS/ -- R01 GM074108/GM/NIGMS NIH HHS/ -- R01 GM115914/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Dec 18;350(6267):1552-5. doi: 10.1126/science.aac7504.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Utah, Salt Lake City, UT 84112, USA. nitin.phadnis@utah.edu hsmalik@fhcrc.org. ; Basic Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA. ; Department of Biology, University of Utah, Salt Lake City, UT 84112, USA. ; Genome Sciences, University of Washington, Seattle, WA 98195, USA. Howard Hughes Medical Institute, University of Washington, Seattle, WA 98195, USA. ; Genome Sciences, University of Washington, Seattle, WA 98195, USA. Department of Human Genetics, University of Michigan, Ann Arbor, MI 48109, USA. ; Basic Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA. Howard Hughes Medical Institute, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA. nitin.phadnis@utah.edu hsmalik@fhcrc.org.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26680200" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Carrier Proteins/genetics/*physiology ; Cell Cycle/*genetics ; Chimera/genetics ; Crosses, Genetic ; Drosophila melanogaster/*genetics/growth & development ; Drosophila simulans/*genetics/growth & development ; Gene Expression Regulation, Developmental ; Genes, Essential/genetics/physiology ; Genes, Insect ; Genes, Lethal/genetics/*physiology ; *Genetic Speciation ; Male ; Molecular Sequence Data ; *Reproductive Isolation
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  • 47
    Publication Date: 2015-02-07
    Description: Mapping protein sequence space is a difficult problem that necessitates the analysis of 20(N) combinations for sequences of length N. We systematically mapped the sequence space of four key residues in the Escherichia coli protein kinase PhoQ that drive recognition of its substrate PhoP. We generated a library containing all 160,000 variants of PhoQ at these positions and used a two-step selection coupled to next-generation sequencing to identify 1659 functional variants. Our results reveal extensive degeneracy in the PhoQ-PhoP interface and epistasis, with the effect of individual substitutions often highly dependent on context. Together, epistasis and the genetic code create a pattern of connectivity of functional variants in sequence space that likely constrains PhoQ evolution. Consequently, the diversity of PhoQ orthologs is substantially lower than that of functional PhoQ variants.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Podgornaia, Anna I -- Laub, Michael T -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Feb 6;347(6222):673-7. doi: 10.1126/science.1257360.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Computational & Systems Biology Program, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. ; Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. Howard Hughes Medical Institute, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. laub@mit.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25657251" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence/genetics ; *Epistasis, Genetic ; Escherichia coli Proteins/*genetics/metabolism ; *Evolution, Molecular ; Gene Library ; *Genetic Code ; Molecular Sequence Data ; Protein Interaction Domains and Motifs/genetics ; Protein Interaction Mapping ; Selection, Genetic ; Substrate Specificity/genetics
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  • 48
    Publication Date: 2015-05-23
    Description: The 5' leader of the HIV-1 genome contains conserved elements that direct selective packaging of the unspliced, dimeric viral RNA into assembling particles. By using a (2)H-edited nuclear magnetic resonance (NMR) approach, we determined the structure of a 155-nucleotide region of the leader that is independently capable of directing packaging (core encapsidation signal; Psi(CES)). The RNA adopts an unexpected tandem three-way junction structure, in which residues of the major splice donor and translation initiation sites are sequestered by long-range base pairing and guanosines essential for both packaging and high-affinity binding to the cognate Gag protein are exposed in helical junctions. The structure reveals how translation is attenuated, Gag binding promoted, and unspliced dimeric genomes selected, by the RNA conformer that directs packaging.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4492308/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4492308/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Keane, Sarah C -- Heng, Xiao -- Lu, Kun -- Kharytonchyk, Siarhei -- Ramakrishnan, Venkateswaran -- Carter, Gregory -- Barton, Shawn -- Hosic, Azra -- Florwick, Alyssa -- Santos, Justin -- Bolden, Nicholas C -- McCowin, Sayo -- Case, David A -- Johnson, Bruce A -- Salemi, Marco -- Telesnitsky, Alice -- Summers, Michael F -- 2T34 GM008663/GM/NIGMS NIH HHS/ -- P50 GM 103297/GM/NIGMS NIH HHS/ -- P50 GM103297/GM/NIGMS NIH HHS/ -- R01 GM042561/GM/NIGMS NIH HHS/ -- R01 GM42561/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 May 22;348(6237):917-21. doi: 10.1126/science.aaa9266.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute (HHMI) and Department of Chemistry and Biochemistry, University of Maryland Baltimore County (UMBC), 1000 Hilltop Circle, Baltimore, MD 21250, USA. ; Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI 48109-5620, USA. ; Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, NJ 08854, USA. ; One Moon Scientific, Incorporated, 839 Grant Avenue, Westfield, NJ 07090, USA, and City University of New York (CUNY) Advanced Science Research Center, 85 St. Nicholas Terrace, New York, NY 10031, USA. ; Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, and Emerging Pathogens Institute, University of Florida, Gainesville, FL 32610, USA. ; Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI 48109-5620, USA. summers@hhmi.umbc.edu ateles@umich.edu. ; Howard Hughes Medical Institute (HHMI) and Department of Chemistry and Biochemistry, University of Maryland Baltimore County (UMBC), 1000 Hilltop Circle, Baltimore, MD 21250, USA. summers@hhmi.umbc.edu ateles@umich.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25999508" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Genome, Viral ; Guanosine/chemistry ; HIV-1/*chemistry/genetics/*physiology ; Molecular Sequence Data ; Nuclear Magnetic Resonance, Biomolecular ; Nucleic Acid Conformation ; Peptide Chain Initiation, Translational ; RNA Splicing ; RNA, Viral/*chemistry/genetics ; *Virus Assembly ; gag Gene Products, Human Immunodeficiency Virus/chemistry
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  • 49
    Publication Date: 2015-06-27
    Description: Light-gated rhodopsin cation channels from chlorophyte algae have transformed neuroscience research through their use as membrane-depolarizing optogenetic tools for targeted photoactivation of neuron firing. Photosuppression of neuronal action potentials has been limited by the lack of equally efficient tools for membrane hyperpolarization. We describe anion channel rhodopsins (ACRs), a family of light-gated anion channels from cryptophyte algae that provide highly sensitive and efficient membrane hyperpolarization and neuronal silencing through light-gated chloride conduction. ACRs strictly conducted anions, completely excluding protons and larger cations, and hyperpolarized the membrane of cultured animal cells with much faster kinetics at less than one-thousandth of the light intensity required by the most efficient currently available optogenetic proteins. Natural ACRs provide optogenetic inhibition tools with unprecedented light sensitivity and temporal precision.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4764398/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4764398/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Govorunova, Elena G -- Sineshchekov, Oleg A -- Janz, Roger -- Liu, Xiaoqin -- Spudich, John L -- R01 GM027750/GM/NIGMS NIH HHS/ -- R01GM027750/GM/NIGMS NIH HHS/ -- R21MH098288/MH/NIMH NIH HHS/ -- S10RR022531/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2015 Aug 7;349(6248):647-50. doi: 10.1126/science.aaa7484. Epub 2015 Jun 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Membrane Biology, Department of Biochemistry and Molecular Biology, University of Texas Medical School, Houston, TX 77030, USA. ; Department of Neurobiology and Anatomy, University of Texas Medical School, Houston, TX 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26113638" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Chloride Channels/classification/genetics/*physiology ; Cryptophyta/genetics/*metabolism ; HEK293 Cells ; Humans ; Ion Channel Gating ; Light ; Membrane Potentials/physiology/*radiation effects ; Molecular Sequence Data ; Neural Inhibition ; Neurons/physiology/*radiation effects ; Optogenetics/*methods ; Photic Stimulation ; Phylogeny ; Rhodopsins, Microbial/classification/genetics/*physiology ; Transfection
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  • 50
    Publication Date: 2015-10-13
    Description: The shortage of organs for transplantation is a major barrier to the treatment of organ failure. Although porcine organs are considered promising, their use has been checked by concerns about the transmission of porcine endogenous retroviruses (PERVs) to humans. Here we describe the eradication of all PERVs in a porcine kidney epithelial cell line (PK15). We first determined the PK15 PERV copy number to be 62. Using CRISPR-Cas9, we disrupted all copies of the PERV pol gene and demonstrated a 〉1000-fold reduction in PERV transmission to human cells, using our engineered cells. Our study shows that CRISPR-Cas9 multiplexability can be as high as 62 and demonstrates the possibility that PERVs can be inactivated for clinical application of porcine-to-human xenotransplantation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yang, Luhan -- Guell, Marc -- Niu, Dong -- George, Haydy -- Lesha, Emal -- Grishin, Dennis -- Aach, John -- Shrock, Ellen -- Xu, Weihong -- Poci, Jurgen -- Cortazio, Rebeca -- Wilkinson, Robert A -- Fishman, Jay A -- Church, George -- P50 HG005550/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2015 Nov 27;350(6264):1101-4. doi: 10.1126/science.aad1191. Epub 2015 Oct 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Harvard Medical School, Boston, MA, USA. Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA, USA. eGenesis Biosciences, Boston, MA 02115, USA. gchurch@genetics.med.harvard.edu luhan.yang@egenesisbio.com. ; Department of Genetics, Harvard Medical School, Boston, MA, USA. Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA, USA. eGenesis Biosciences, Boston, MA 02115, USA. ; Department of Genetics, Harvard Medical School, Boston, MA, USA. College of Animal Sciences, Zhejiang University, Hangzhou 310058, China. ; Department of Genetics, Harvard Medical School, Boston, MA, USA. ; Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. ; Transplant Infectious Disease and Compromised Host Program, Massachusetts General Hospital, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26456528" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; CRISPR-Cas Systems ; Cell Line ; Endogenous Retroviruses/*genetics ; Epithelial Cells/virology ; Gene Dosage ; Gene Targeting/*methods ; Genes, pol ; HEK293 Cells ; Humans ; Kidney/virology ; Molecular Sequence Data ; Retroviridae Infections/*prevention & control/transmission/virology ; Swine/*virology ; Transplantation, Heterologous/*methods ; *Virus Inactivation
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  • 51
    Publication Date: 2015-08-15
    Description: Most spontaneous DNA double-strand breaks (DSBs) result from replication-fork breakage. Break-induced replication (BIR), a genome rearrangement-prone repair mechanism that requires the Pol32/POLD3 subunit of eukaryotic DNA Poldelta, was proposed to repair broken forks, but how genome destabilization is avoided was unknown. We show that broken fork repair initially uses error-prone Pol32-dependent synthesis, but that mutagenic synthesis is limited to within a few kilobases from the break by Mus81 endonuclease and a converging fork. Mus81 suppresses template switches between both homologous sequences and diverged human Alu repetitive elements, highlighting its importance for stability of highly repetitive genomes. We propose that lack of a timely converging fork or Mus81 may propel genome instability observed in cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mayle, Ryan -- Campbell, Ian M -- Beck, Christine R -- Yu, Yang -- Wilson, Marenda -- Shaw, Chad A -- Bjergbaek, Lotte -- Lupski, James R -- Ira, Grzegorz -- F31 NS083159/NS/NINDS NIH HHS/ -- GM080600/GM/NIGMS NIH HHS/ -- HG006542/HG/NHGRI NIH HHS/ -- NS058529/NS/NINDS NIH HHS/ -- NS083159/NS/NINDS NIH HHS/ -- R01 GM080600/GM/NIGMS NIH HHS/ -- R01 NS058529/NS/NINDS NIH HHS/ -- U54 HG006542/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2015 Aug 14;349(6249):742-7. doi: 10.1126/science.aaa8391.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA. ; Department of Molecular Biology and Genetics, University of Aarhus, Aarhus 8000, Denmark. ; Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA. Department of Pediatrics, and Human Genome Sequencing Center, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA. Texas Children's Hospital, Houston, TX 77030, USA. ; Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA. gira@bcm.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26273056" target="_blank"〉PubMed〈/a〉
    Keywords: Alu Elements ; Base Sequence ; *DNA Breaks, Double-Stranded ; DNA Repair/*genetics ; DNA Replication/*genetics ; DNA-Binding Proteins/genetics/*metabolism ; DNA-Directed DNA Polymerase/metabolism ; Endonucleases/genetics/*metabolism ; *Genomic Instability ; Humans ; Molecular Sequence Data ; Neoplasms/genetics ; Saccharomyces cerevisiae/genetics ; Saccharomyces cerevisiae Proteins/genetics/*metabolism
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  • 52
    Publication Date: 2015-06-06
    Description: The detailed molecular interactions between native HIV-1 capsid protein (CA) hexamers that shield the viral genome and proteins have been elusive. We report crystal structures describing interactions between CA monomers related by sixfold symmetry within hexamers (intrahexamer) and threefold and twofold symmetry between neighboring hexamers (interhexamer). The structures describe how CA builds hexagonal lattices, the foundation of mature capsids. Lattice structure depends on an adaptable hydration layer modulating interactions among CA molecules. Disruption of this layer alters interhexamer interfaces, highlighting an inherent structural variability. A CA-targeting antiviral affects capsid stability by binding across CA molecules and subtly altering interhexamer interfaces remote to the ligand-binding site. Inherent structural plasticity, hydration layer rearrangement, and effector binding affect capsid stability and have functional implications for the retroviral life cycle.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4584149/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4584149/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gres, Anna T -- Kirby, Karen A -- KewalRamani, Vineet N -- Tanner, John J -- Pornillos, Owen -- Sarafianos, Stefan G -- AI076119/AI/NIAID NIH HHS/ -- AI099284/AI/NIAID NIH HHS/ -- AI100890/AI/NIAID NIH HHS/ -- AI112417/AI/NIAID NIH HHS/ -- AI120860/AI/NIAID NIH HHS/ -- GM066087/GM/NIGMS NIH HHS/ -- GM103368/GM/NIGMS NIH HHS/ -- P50 GM103368/GM/NIGMS NIH HHS/ -- R01 AI076119/AI/NIAID NIH HHS/ -- R01 AI099284/AI/NIAID NIH HHS/ -- R01 AI100890/AI/NIAID NIH HHS/ -- R01 AI120860/AI/NIAID NIH HHS/ -- R01 GM066087/GM/NIGMS NIH HHS/ -- R21 AI112417/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2015 Jul 3;349(6243):99-103. doi: 10.1126/science.aaa5936. Epub 2015 Jun 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA. Department of Chemistry, University of Missouri, Columbia, MO 65211, USA. ; Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA. Department of Molecular Microbiology and Immunology, University of Missouri School of Medicine, Columbia, MO 65211, USA. ; Basic Research Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA. ; Department of Chemistry, University of Missouri, Columbia, MO 65211, USA. Department of Biochemistry, University of Missouri, Columbia, MO 65211, USA. ; Department of Molecular Physiology and Biological Physics, University of Virginia School of Medicine, Charlottesville, VA 22908, USA. ; Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA. Department of Molecular Microbiology and Immunology, University of Missouri School of Medicine, Columbia, MO 65211, USA. Department of Biochemistry, University of Missouri, Columbia, MO 65211, USA. sarafianoss@missouri.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26044298" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Capsid/*chemistry ; Crystallography, X-Ray ; HIV-1/*chemistry/genetics ; Molecular Sequence Data ; Protein Multimerization ; Protein Structure, Secondary ; gag Gene Products, Human Immunodeficiency Virus/*chemistry/genetics
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  • 53
    Publication Date: 2015-04-25
    Description: In cells, biosynthetic machinery coordinates protein synthesis and folding to optimize efficiency and minimize off-pathway outcomes. However, it has been difficult to delineate experimentally the mechanisms responsible. Using fluorescence resonance energy transfer, we studied cotranslational folding of the first nucleotide-binding domain from the cystic fibrosis transmembrane conductance regulator. During synthesis, folding occurred discretely via sequential compaction of N-terminal, alpha-helical, and alpha/beta-core subdomains. Moreover, the timing of these events was critical; premature alpha-subdomain folding prevented subsequent core formation. This process was facilitated by modulating intrinsic folding propensity in three distinct ways: delaying alpha-subdomain compaction, facilitating beta-strand intercalation, and optimizing translation kinetics via codon usage. Thus, de novo folding is translationally tuned by an integrated cellular response that shapes the cotranslational folding landscape at critical stages of synthesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Soo Jung -- Yoon, Jae Seok -- Shishido, Hideki -- Yang, Zhongying -- Rooney, LeeAnn A -- Barral, Jose M -- Skach, William R -- P30CA069533/CA/NCI NIH HHS/ -- P30EYE010572/PHS HHS/ -- R01DK51818/DK/NIDDK NIH HHS/ -- R01GM53457/GM/NIGMS NIH HHS/ -- S10OD012246/OD/NIH HHS/ -- S10RR025571/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2015 Apr 24;348(6233):444-8. doi: 10.1126/science.aaa3974.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, Oregon Health and Science University (OHSU), Portland, OR 97239, USA. ; Department of Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX 77550-0620, USA. Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77550-0620, USA. ; Department of Biochemistry and Molecular Biology, Oregon Health and Science University (OHSU), Portland, OR 97239, USA. Cystic Fibrosis Foundation Therapeutics, Bethesda, MD 20814, USA. skachw@ohsu.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25908822" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Codon/chemistry/*metabolism ; Cystic Fibrosis Transmembrane Conductance ; Regulator/*biosynthesis/*chemistry/genetics ; Fluorescence Resonance Energy Transfer ; Humans ; Kinetics ; Molecular Sequence Data ; *Peptide Chain Elongation, Translational ; *Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Ribosomes/chemistry/metabolism
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  • 54
    Publication Date: 2015-01-24
    Description: Chemokines and their receptors control cell migration during development, immune system responses, and in numerous diseases, including inflammation and cancer. The structural basis of receptor:chemokine recognition has been a long-standing unanswered question due to the challenges of structure determination for membrane protein complexes. Here, we report the crystal structure of the chemokine receptor CXCR4 in complex with the viral chemokine antagonist vMIP-II at 3.1 angstrom resolution. The structure revealed a 1:1 stoichiometry and a more extensive binding interface than anticipated from the paradigmatic two-site model. The structure helped rationalize a large body of mutagenesis data and together with modeling provided insights into CXCR4 interactions with its endogenous ligand CXCL12, its ability to recognize diverse ligands, and the specificity of CC and CXC receptors for their respective chemokines.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4362693/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4362693/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Qin, Ling -- Kufareva, Irina -- Holden, Lauren G -- Wang, Chong -- Zheng, Yi -- Zhao, Chunxia -- Fenalti, Gustavo -- Wu, Huixian -- Han, Gye Won -- Cherezov, Vadim -- Abagyan, Ruben -- Stevens, Raymond C -- Handel, Tracy M -- ACB-12002/PHS HHS/ -- AGM-12006/PHS HHS/ -- R01 GM071872/GM/NIGMS NIH HHS/ -- R01 GM081763/GM/NIGMS NIH HHS/ -- R21 AI101687/AI/NIAID NIH HHS/ -- U01 GM094612/GM/NIGMS NIH HHS/ -- U54 GM094618/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2015 Mar 6;347(6226):1117-22. doi: 10.1126/science.1261064. Epub 2015 Jan 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of California, San Diego, Skaggs School of Pharmacy and Pharmaceutical Sciences, La Jolla, CA 92093, USA. ; University of California, San Diego, Skaggs School of Pharmacy and Pharmaceutical Sciences, La Jolla, CA 92093, USA. thandel@ucsd.edu stevens@usc.edu ikufareva@ucsd.edu. ; Department of Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA. ; Department of Chemistry, Bridge Institute. Department of Biological Sciences, Bridge Institute, University of Southern California, Los Angeles, CA 90089, USA. ; Department of Chemistry, Bridge Institute. ; Department of Chemistry, Bridge Institute. Department of Biological Sciences, Bridge Institute, University of Southern California, Los Angeles, CA 90089, USA. thandel@ucsd.edu stevens@usc.edu ikufareva@ucsd.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25612609" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Chemokine CXCL12/chemistry ; Chemokines/*chemistry ; Crystallography, X-Ray ; Drug Design ; Humans ; Models, Chemical ; Molecular Sequence Data ; Protein Binding ; Protein Interaction Domains and Motifs ; Protein Multimerization ; Receptors, CXCR4/agonists/antagonists & inhibitors/*chemistry ; Structural Homology, Protein
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  • 55
    Publication Date: 2015-08-01
    Description: The inefficient clearance of dying cells can lead to abnormal immune responses, such as unresolved inflammation and autoimmune conditions. We show that tumor suppressor p53 controls signaling-mediated phagocytosis of apoptotic cells through its target, Death Domain1alpha (DD1alpha), which suggests that p53 promotes both the proapoptotic pathway and postapoptotic events. DD1alpha appears to function as an engulfment ligand or receptor that engages in homophilic intermolecular interaction at intercellular junctions of apoptotic cells and macrophages, unlike other typical scavenger receptors that recognize phosphatidylserine on the surface of dead cells. DD1alpha-deficient mice showed in vivo defects in clearing dying cells, which led to multiple organ damage indicative of immune dysfunction. p53-induced expression of DD1alpha thus prevents persistence of cell corpses and ensures efficient generation of precise immune responses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yoon, Kyoung Wan -- Byun, Sanguine -- Kwon, Eunjeong -- Hwang, So-Young -- Chu, Kiki -- Hiraki, Masatsugu -- Jo, Seung-Hee -- Weins, Astrid -- Hakroush, Samy -- Cebulla, Angelika -- Sykes, David B -- Greka, Anna -- Mundel, Peter -- Fisher, David E -- Mandinova, Anna -- Lee, Sam W -- CA142805/CA/NCI NIH HHS/ -- CA149477/CA/NCI NIH HHS/ -- CA80058/CA/NCI NIH HHS/ -- DK062472/DK/NIDDK NIH HHS/ -- DK091218/DK/NIDDK NIH HHS/ -- DK093378/DK/NIDDK NIH HHS/ -- DK57683/DK/NIDDK NIH HHS/ -- S10RR027673/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2015 Jul 31;349(6247):1261669. doi: 10.1126/science.1261669.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cutaneous Biology Research Center, Massachusetts General Hospital and Harvard Medical School, Building 149, 13th Street, Charlestown, MA 02129, USA. ; Department of Pathology, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA 02115, USA. ; Division of Nephrology, Department of Medicine, Massachusetts General Hospital, Boston, MA 02114, USA. ; Center for Regenerative Medicine and Technology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA. ; Department of Medicine, Glom-NExT Center for Glomerular Kidney Disease and Novel Experimental Therapeutics, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA 02115, USA. ; Cutaneous Biology Research Center, Massachusetts General Hospital and Harvard Medical School, Building 149, 13th Street, Charlestown, MA 02129, USA. Broad Institute of Harvard and MIT, 7 Cambridge Center, Cambridge, MA 02142, USA. ; Cutaneous Biology Research Center, Massachusetts General Hospital and Harvard Medical School, Building 149, 13th Street, Charlestown, MA 02129, USA. Broad Institute of Harvard and MIT, 7 Cambridge Center, Cambridge, MA 02142, USA. swlee@mgh.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26228159" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Apoptosis/genetics/*immunology ; Autoimmune Diseases/genetics/immunology ; Cell Line, Tumor ; Female ; Humans ; Inflammation/genetics/immunology ; Macrophages/immunology ; Male ; Membrane Proteins/genetics/*metabolism ; Mice ; Mice, Knockout ; Molecular Sequence Data ; Phagocytosis/*immunology ; Phosphatidylserines/*metabolism ; Signal Transduction ; Tumor Suppressor Protein p53/*metabolism
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  • 56
    Publication Date: 2015-04-25
    Description: The Protoaurignacian culture is pivotal to the debate about the timing of the arrival of modern humans in western Europe and the demise of Neandertals. However, which group is responsible for this culture remains uncertain. We investigated dental remains associated with the Protoaurignacian. The lower deciduous incisor from Riparo Bombrini is modern human, based on its morphology. The upper deciduous incisor from Grotta di Fumane contains ancient mitochondrial DNA of a modern human type. These teeth are the oldest human remains in an Aurignacian-related archaeological context, confirming that by 41,000 calendar years before the present, modern humans bearing Protoaurignacian culture spread into southern Europe. Because the last Neandertals date to 41,030 to 39,260 calendar years before the present, we suggest that the Protoaurignacian triggered the demise of Neandertals in this area.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Benazzi, S -- Slon, V -- Talamo, S -- Negrino, F -- Peresani, M -- Bailey, S E -- Sawyer, S -- Panetta, D -- Vicino, G -- Starnini, E -- Mannino, M A -- Salvadori, P A -- Meyer, M -- Paabo, S -- Hublin, J-J -- New York, N.Y. -- Science. 2015 May 15;348(6236):793-6. doi: 10.1126/science.aaa2773. Epub 2015 Apr 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cultural Heritage, University of Bologna, Via degli Ariani 1, 48121 Ravenna, Italy. Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany. stefano.benazzi@unibo.it. ; Department of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany. ; Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany. ; Dipartimento di Antichita, Filosofia, Storia e Geografia, Universita di Genova, Via Balbi 2, 16126 Genova, Italy. ; Sezione di Scienze Preistoriche e Antropologiche, Dipartimento di Studi Umanistici, Corso Ercole I d'Este 32, Universita di Ferrara, 44100 Ferrara, Italy. ; Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany. Center for the Study of Human Origins, Department of Anthropology, New York University, 25 Waverly Place, New York, NY 10003, USA. ; CNR Institute of Clinical Physiology, National Research Council, Via G. Moruzzi 1, 56124 Pisa, Italy. ; Museo Archeologico del Finale, Chiostri di Santa Caterina, 17024 Finale Ligure Borgo, Italy. ; Scuola di Scienze Umanistiche, Dipartimento di Studi Storici, Universita di Torino, via S. Ottavio 20, 10124 Torino, Italy. Museo Preistorico Nazionale dei Balzi Rossi, Via Balzi Rossi 9, 18039 Ventimiglia, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25908660" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Archaeology ; Base Sequence ; DNA, Mitochondrial/analysis/genetics ; Dental Enamel/chemistry ; *Extinction, Biological ; Genome, Mitochondrial/genetics ; Humans ; Incisor/anatomy & histology/chemistry ; Molecular Sequence Data ; Neanderthals/anatomy & histology/*classification/*genetics ; *Phylogeny ; Tooth, Deciduous/anatomy & histology/chemistry
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  • 57
    Publication Date: 2015-09-01
    Description: The nuclear pore complex (NPC) constitutes the sole gateway for bidirectional nucleocytoplasmic transport. We present the reconstitution and interdisciplinary analyses of the ~425-kilodalton inner ring complex (IRC), which forms the central transport channel and diffusion barrier of the NPC, revealing its interaction network and equimolar stoichiometry. The Nsp1*Nup49*Nup57 channel nucleoporin heterotrimer (CNT) attaches to the IRC solely through the adaptor nucleoporin Nic96. The CNT*Nic96 structure reveals that Nic96 functions as an assembly sensor that recognizes the three-dimensional architecture of the CNT, thereby mediating the incorporation of a defined CNT state into the NPC. We propose that the IRC adopts a relatively rigid scaffold that recruits the CNT to primarily form the diffusion barrier of the NPC, rather than enabling channel dilation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stuwe, Tobias -- Bley, Christopher J -- Thierbach, Karsten -- Petrovic, Stefan -- Schilbach, Sandra -- Mayo, Daniel J -- Perriches, Thibaud -- Rundlet, Emily J -- Jeon, Young E -- Collins, Leslie N -- Huber, Ferdinand M -- Lin, Daniel H -- Paduch, Marcin -- Koide, Akiko -- Lu, Vincent -- Fischer, Jessica -- Hurt, Ed -- Koide, Shohei -- Kossiakoff, Anthony A -- Hoelz, Andre -- ACB-12002/PHS HHS/ -- AGM-12006/PHS HHS/ -- P30-CA014599/CA/NCI NIH HHS/ -- R01-GM090324/GM/NIGMS NIH HHS/ -- R01-GM111461/GM/NIGMS NIH HHS/ -- U01-GM094588/GM/NIGMS NIH HHS/ -- U54-GM087519/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2015 Oct 2;350(6256):56-64. doi: 10.1126/science.aac9176. Epub 2015 Aug 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉California Institute of Technology, Division of Chemistry and Chemical Engineering, 1200 East California Boulevard, Pasadena, CA 91125, USA. ; Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL 60637, USA. ; Biochemistry Center of Heidelberg University, 69120 Heidelberg, Germany. ; California Institute of Technology, Division of Chemistry and Chemical Engineering, 1200 East California Boulevard, Pasadena, CA 91125, USA. hoelz@caltech.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26316600" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Chaetomium/metabolism/*ultrastructure ; Fungal Proteins/chemistry/*ultrastructure ; Molecular Sequence Data ; Nuclear Pore/metabolism/*ultrastructure ; Nuclear Pore Complex Proteins/chemistry/*ultrastructure ; Nuclear Proteins/chemistry/*ultrastructure ; Protein Binding ; Protein Multimerization ; Protein Structure, Secondary ; Protein Structure, Tertiary
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  • 58
    Publication Date: 2015-09-19
    Description: A wide variety of RNAs encode small open-reading-frame (smORF/sORF) peptides, but their functions are largely unknown. Here, we show that Drosophila polished-rice (pri) sORF peptides trigger proteasome-mediated protein processing, converting the Shavenbaby (Svb) transcription repressor into a shorter activator. A genome-wide RNA interference screen identifies an E2-E3 ubiquitin-conjugating complex, UbcD6-Ubr3, which targets Svb to the proteasome in a pri-dependent manner. Upon interaction with Ubr3, Pri peptides promote the binding of Ubr3 to Svb. Ubr3 can then ubiquitinate the Svb N terminus, which is degraded by the proteasome. The C-terminal domains protect Svb from complete degradation and ensure appropriate processing. Our data show that Pri peptides control selectivity of Ubr3 binding, which suggests that the family of sORF peptides may contain an extended repertoire of protein regulators.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zanet, J -- Benrabah, E -- Li, T -- Pelissier-Monier, A -- Chanut-Delalande, H -- Ronsin, B -- Bellen, H J -- Payre, F -- Plaza, S -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Sep 18;349(6254):1356-8. doi: 10.1126/science.aac5677.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre de Biologie du Developpement, Universite de Toulouse III-Paul Sabatier, Batiment 4R3, 118 route de Narbonne, F-31062 Toulouse, France. CNRS, UMR5547, Centre de Biologie du Developpement, F-31062 Toulouse, France. ; Program in Developmental Biology, Baylor College of Medicine, Houston, TX 77030, USA. ; Program in Developmental Biology, Baylor College of Medicine, Houston, TX 77030, USA. Department of Molecular and Human Genetics, Howard Hughes Medical Institute, Neurological Research Institute, Baylor College of Medicine, Houston, TX 77030, USA. ; Centre de Biologie du Developpement, Universite de Toulouse III-Paul Sabatier, Batiment 4R3, 118 route de Narbonne, F-31062 Toulouse, France. CNRS, UMR5547, Centre de Biologie du Developpement, F-31062 Toulouse, France. francois.payre@univ-tlse3.fr serge.plaza@univ-tlse3.f.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26383956" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; DNA-Binding Proteins/chemistry/genetics/*metabolism ; Drosophila Proteins/chemistry/genetics/*metabolism ; Drosophila melanogaster/enzymology/genetics/*metabolism ; Gene Expression Regulation ; Molecular Sequence Data ; Open Reading Frames ; Peptides/genetics/*metabolism ; Proteasome Endopeptidase Complex/*metabolism ; Protein Structure, Tertiary ; *Proteolysis ; RNA Interference ; Transcription Factors/chemistry/genetics/*metabolism ; Ubiquitin-Conjugating Enzymes/metabolism ; Ubiquitin-Protein Ligases/metabolism ; Ubiquitination
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  • 59
    Publication Date: 2015-01-31
    Description: Translocator proteins (TSPOs) bind steroids and porphyrins, and they are implicated in many human diseases, for which they serve as biomarkers and therapeutic targets. TSPOs have tryptophan-rich sequences that are highly conserved from bacteria to mammals. Here we report crystal structures for Bacillus cereus TSPO (BcTSPO) down to 1.7 A resolution, including a complex with the benzodiazepine-like inhibitor PK11195. We also describe BcTSPO-mediated protoporphyrin IX (PpIX) reactions, including catalytic degradation to a previously undescribed heme derivative. We used structure-inspired mutations to investigate reaction mechanisms, and we showed that TSPOs from Xenopus and man have similar PpIX-directed activities. Although TSPOs have been regarded as transporters, the catalytic activity in PpIX degradation suggests physiological importance for TSPOs in protection against oxidative stress.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4341906/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4341906/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guo, Youzhong -- Kalathur, Ravi C -- Liu, Qun -- Kloss, Brian -- Bruni, Renato -- Ginter, Christopher -- Kloppmann, Edda -- Rost, Burkhard -- Hendrickson, Wayne A -- GM095315/GM/NIGMS NIH HHS/ -- GM107462/GM/NIGMS NIH HHS/ -- R01 GM107462/GM/NIGMS NIH HHS/ -- U54 GM075026/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2015 Jan 30;347(6221):551-5. doi: 10.1126/science.aaa1534.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY 10032, USA. ; The New York Consortium on Membrane Protein Structure (NYCOMPS), New York Structural Biology Center, 89 Convent Avenue, New York, NY 10027, USA. ; The New York Consortium on Membrane Protein Structure (NYCOMPS), New York Structural Biology Center, 89 Convent Avenue, New York, NY 10027, USA. New York Structural Biology Center, Synchrotron Beamlines, Brookhaven National Laboratory, Upton, NY 11973, USA. ; The New York Consortium on Membrane Protein Structure (NYCOMPS), New York Structural Biology Center, 89 Convent Avenue, New York, NY 10027, USA. Department of Informatics, Bioinformatics and Computational Biology, Technische Universitat Munchen, Garching 85748, Germany. ; Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY 10032, USA. The New York Consortium on Membrane Protein Structure (NYCOMPS), New York Structural Biology Center, 89 Convent Avenue, New York, NY 10027, USA. New York Structural Biology Center, Synchrotron Beamlines, Brookhaven National Laboratory, Upton, NY 11973, USA. Department of Physiology and Cellular Biophysics, Columbia University, New York, NY 10032, USA. wayne@xtl.cumc.columbia.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25635100" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacillus cereus/*chemistry ; Bacterial Proteins/*chemistry/*metabolism ; Binding Sites ; Crystallography, X-Ray ; Isoquinolines/metabolism ; Ligands ; Membrane Transport Proteins/*chemistry/*metabolism ; Molecular Sequence Data ; Mutant Proteins/chemistry/metabolism ; Protein Conformation ; Protein Multimerization ; Protein Structure, Secondary ; Protein Subunits/chemistry ; Protoporphyrins/metabolism ; Reactive Oxygen Species/metabolism ; Tryptophan/analysis
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  • 60
    Publication Date: 2015-05-09
    Description: In the fruit fly Drosophila, head formation is driven by a single gene, bicoid, which generates head-to-tail polarity of the main embryonic axis. Bicoid deficiency results in embryos with tail-to-tail polarity and no head. However, most insects lack bicoid, and the molecular mechanism for establishing head-to-tail polarity is poorly understood. We have identified a gene that establishes head-to-tail polarity of the mosquito-like midge, Chironomus riparius. This gene, named panish, encodes a cysteine-clamp DNA binding domain and operates through a different mechanism than bicoid. This finding, combined with the observation that the phylogenetic distributions of panish and bicoid are limited to specific families of flies, reveals frequent evolutionary changes of body axis determinants and a remarkable opportunity to study gene regulatory network evolution.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4449817/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4449817/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Klomp, Jeff -- Athy, Derek -- Kwan, Chun Wai -- Bloch, Natasha I -- Sandmann, Thomas -- Lemke, Steffen -- Schmidt-Ott, Urs -- 1R03HD67700-01A1/HD/NICHD NIH HHS/ -- R03 HD067700/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2015 May 29;348(6238):1040-2. doi: 10.1126/science.aaa7105. Epub 2015 May 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL 60637, USA. ; Division of Signaling and Functional Genomics, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany. ; Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL 60637, USA. uschmid@uchicago.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25953821" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Body Patterning/*genetics ; Chironomidae/*embryology/genetics ; DNA-Binding Proteins/classification/genetics/*physiology ; Embryo, Nonmammalian/*embryology ; Evolution, Molecular ; Gene Expression Regulation, Developmental ; Gene Regulatory Networks ; Homeodomain Proteins/classification/genetics/*physiology ; Molecular Sequence Data ; Phylogeny ; Protein Structure, Tertiary/genetics ; Trans-Activators/classification/genetics/*physiology
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  • 61
    Publication Date: 2015-04-18
    Description: Measles is a highly contagious human disease. We used cryo-electron microscopy and single particle-based helical image analysis to determine the structure of the helical nucleocapsid formed by the folded domain of the measles virus nucleoprotein encapsidating an RNA at a resolution of 4.3 angstroms. The resulting pseudoatomic model of the measles virus nucleocapsid offers important insights into the mechanism of the helical polymerization of nucleocapsids of negative-strand RNA viruses, in particular via the exchange subdomains of the nucleoprotein. The structure reveals the mode of the nucleoprotein-RNA interaction and explains why each nucleoprotein of measles virus binds six nucleotides, whereas the respiratory syncytial virus nucleoprotein binds seven. It provides a rational basis for further analysis of measles virus replication and transcription, and reveals potential targets for drug design.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gutsche, Irina -- Desfosses, Ambroise -- Effantin, Gregory -- Ling, Wai Li -- Haupt, Melina -- Ruigrok, Rob W H -- Sachse, Carsten -- Schoehn, Guy -- New York, N.Y. -- Science. 2015 May 8;348(6235):704-7. doi: 10.1126/science.aaa5137. Epub 2015 Apr 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CNRS, Unit for Virus Host-Cell Interactions, 38042 Grenoble, France. Universite Grenoble Alpes, Unit for Virus Host-Cell Interactions, 38042 Grenoble, France. gutsche@embl.fr. ; Structural and Computational Biology Unit, European Molecular Biology Laboratory, 69917 Heidelberg, Germany. ; CNRS, Unit for Virus Host-Cell Interactions, 38042 Grenoble, France. Universite Grenoble Alpes, Unit for Virus Host-Cell Interactions, 38042 Grenoble, France. ; Universite Grenoble Alpes, IBS, 38044 Grenoble, France. CNRS, IBS, 38044 Grenoble, France. CEA, IBS, 38044 Grenoble, France. ; Institut Laue-Langevin, 38000 Grenoble, France. ; CNRS, Unit for Virus Host-Cell Interactions, 38042 Grenoble, France. Universite Grenoble Alpes, Unit for Virus Host-Cell Interactions, 38042 Grenoble, France. Universite Grenoble Alpes, IBS, 38044 Grenoble, France. CNRS, IBS, 38044 Grenoble, France. CEA, IBS, 38044 Grenoble, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25883315" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cryoelectron Microscopy ; Humans ; Measles/*virology ; Measles virus/chemistry/*ultrastructure ; Molecular Sequence Data ; Nucleic Acid Conformation ; Nucleocapsid/chemistry/*ultrastructure ; Nucleoproteins/chemistry/ultrastructure ; Protein Structure, Secondary ; RNA, Viral/chemistry/ultrastructure ; Viral Proteins/chemistry/ultrastructure
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  • 62
    Publication Date: 2015-06-06
    Description: The discovery of Streptomyces-produced streptomycin founded the age of tuberculosis therapy. Despite the subsequent development of a curative regimen for this disease, tuberculosis remains a worldwide problem, and the emergence of multidrug-resistant Mycobacterium tuberculosis has prioritized the need for new drugs. Here we show that new optimized derivatives from Streptomyces-derived griselimycin are highly active against M. tuberculosis, both in vitro and in vivo, by inhibiting the DNA polymerase sliding clamp DnaN. We discovered that resistance to griselimycins, occurring at very low frequency, is associated with amplification of a chromosomal segment containing dnaN, as well as the ori site. Our results demonstrate that griselimycins have high translational potential for tuberculosis treatment, validate DnaN as an antimicrobial target, and capture the process of antibiotic pressure-induced gene amplification.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kling, Angela -- Lukat, Peer -- Almeida, Deepak V -- Bauer, Armin -- Fontaine, Evelyne -- Sordello, Sylvie -- Zaburannyi, Nestor -- Herrmann, Jennifer -- Wenzel, Silke C -- Konig, Claudia -- Ammerman, Nicole C -- Barrio, Maria Belen -- Borchers, Kai -- Bordon-Pallier, Florence -- Bronstrup, Mark -- Courtemanche, Gilles -- Gerlitz, Martin -- Geslin, Michel -- Hammann, Peter -- Heinz, Dirk W -- Hoffmann, Holger -- Klieber, Sylvie -- Kohlmann, Markus -- Kurz, Michael -- Lair, Christine -- Matter, Hans -- Nuermberger, Eric -- Tyagi, Sandeep -- Fraisse, Laurent -- Grosset, Jacques H -- Lagrange, Sophie -- Muller, Rolf -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Jun 5;348(6239):1106-12. doi: 10.1126/science.aaa4690.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbial Natural Products, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research and Pharmaceutical Biotechnology, Saarland University, 66123 Saarbrucken, Germany. German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Hannover, Germany. ; Department of Microbial Natural Products, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research and Pharmaceutical Biotechnology, Saarland University, 66123 Saarbrucken, Germany. German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Hannover, Germany. Helmholtz Centre for Infection Research (HZI), 38124 Braunschweig, Germany. ; Center for Tuberculosis Research, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA. KwaZulu-Natal Research Institute for Tuberculosis and HIV (K-RITH), Durban 4001, South Africa. ; Sanofi-Aventis R&D, LGCR/Chemistry, Industriepark Hochst, 65926 Frankfurt am Main, Germany. ; Sanofi-Aventis R&D, Infectious Diseases Therapeutic Strategic Unit, 31036 Toulouse, France. ; Sanofi-Aventis R&D, Strategy, Science Policy & External Innovation (S&I), 75008 Paris, France. ; Helmholtz Centre for Infection Research (HZI), 38124 Braunschweig, Germany. Sanofi-Aventis R&D, LGCR/Chemistry, Industriepark Hochst, 65926 Frankfurt am Main, Germany. ; Sanofi-Aventis R&D, Infectious Diseases Therapeutic Strategic Unit, 65926 Frankfurt, Germany. ; German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Hannover, Germany. Helmholtz Centre for Infection Research (HZI), 38124 Braunschweig, Germany. ; Sanofi-Aventis R&D, Disposition Safety and Animal Research, 34184 Montpellier, France. ; Center for Tuberculosis Research, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA. ; Department of Microbial Natural Products, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research and Pharmaceutical Biotechnology, Saarland University, 66123 Saarbrucken, Germany. German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Hannover, Germany. rolf.mueller@helmholtz-hzi.de.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26045430" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antitubercular Agents/chemistry/*pharmacology/therapeutic use ; Bacterial Proteins/*antagonists & inhibitors ; Cell Line, Tumor ; Crystallography, X-Ray ; DNA-Directed DNA Polymerase ; Disease Models, Animal ; Drug Design ; Humans ; Mice ; Microbial Sensitivity Tests ; Molecular Sequence Data ; *Molecular Targeted Therapy ; Mycobacterium smegmatis/drug effects/enzymology ; Mycobacterium tuberculosis/*drug effects/enzymology ; Peptides, Cyclic/chemistry/*pharmacology/therapeutic use ; Protein Structure, Secondary ; Streptomyces/chemistry/drug effects/metabolism ; Tuberculosis, Multidrug-Resistant/*drug therapy/microbiology
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  • 63
    Publication Date: 2015-12-19
    Description: Outbreaks of Middle East respiratory syndrome (MERS) raise questions about the prevalence and evolution of the MERS coronavirus (CoV) in its animal reservoir. Our surveillance in Saudi Arabia in 2014 and 2015 showed that viruses of the MERS-CoV species and a human CoV 229E-related lineage co-circulated at high prevalence, with frequent co-infections in the upper respiratory tract of dromedary camels. viruses of the betacoronavirus 1 species, we found that dromedary camels share three CoV species with humans. Several MERS-CoV lineages were present in camels, including a recombinant lineage that has been dominant since December 2014 and that subsequently led to the human outbreaks in 2015. Camels therefore serve as an important reservoir for the maintenance and diversification of the MERS-CoVs and are the source of human infections with this virus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sabir, Jamal S M -- Lam, Tommy T-Y -- Ahmed, Mohamed M M -- Li, Lifeng -- Shen, Yongyi -- Abo-Aba, Salah E M -- Qureshi, Muhammd I -- Abu-Zeid, Mohamed -- Zhang, Yu -- Khiyami, Mohammad A -- Alharbi, Njud S -- Hajrah, Nahid H -- Sabir, Meshaal J -- Mutwakil, Mohammed H Z -- Kabli, Saleh A -- Alsulaimany, Faten A S -- Obaid, Abdullah Y -- Zhou, Boping -- Smith, David K -- Holmes, Edward C -- Zhu, Huachen -- Guan, Yi -- New York, N.Y. -- Science. 2016 Jan 1;351(6268):81-4. doi: 10.1126/science.aac8608. Epub 2015 Dec 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biotechnology Research Group, Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia. ; State Key Laboratory of Emerging Infectious Diseases (The University of Hong Kong-Shenzhen Branch), Shenzhen Third People's Hospital, Shenzhen, China. Shantou University-The University of Hong Kong Joint Institute of Virology, Shantou University, Shantou, China. Centre of Influenza Research and State Key Laboratory of Emerging Infectious Diseases, School of Public Health, The University of Hong Kong, Hong Kong Special Administrative Region, China. ; Biotechnology Research Group, Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia. Department of Nucleic Acids Research, Genetic Engineering and Biotechnology Research Institute, City for Scientific Research and Technology Applications, Borg El-Arab, Post Office Box 21934, Alexandria, Egypt. ; Shantou University-The University of Hong Kong Joint Institute of Virology, Shantou University, Shantou, China. Centre of Influenza Research and State Key Laboratory of Emerging Infectious Diseases, School of Public Health, The University of Hong Kong, Hong Kong Special Administrative Region, China. ; Biotechnology Research Group, Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia. Microbial Genetics Department, Genetic Engineering and Biotechnology Division, National Research Center, Dokki, Giza, Egypt. ; King Abdulaziz City for Science and Technology, Riyadh 11442, Saudi Arabia. ; Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia. ; State Key Laboratory of Emerging Infectious Diseases (The University of Hong Kong-Shenzhen Branch), Shenzhen Third People's Hospital, Shenzhen, China. ; Centre of Influenza Research and State Key Laboratory of Emerging Infectious Diseases, School of Public Health, The University of Hong Kong, Hong Kong Special Administrative Region, China. ; Marie Bashir Institute for Infectious Diseases and Biosecurity, Charles Perkins Centre, School of Biological Sciences and Sydney Medical School, The University of Sydney, Sydney, New South Wales 2006, Australia. ; State Key Laboratory of Emerging Infectious Diseases (The University of Hong Kong-Shenzhen Branch), Shenzhen Third People's Hospital, Shenzhen, China. Shantou University-The University of Hong Kong Joint Institute of Virology, Shantou University, Shantou, China. Centre of Influenza Research and State Key Laboratory of Emerging Infectious Diseases, School of Public Health, The University of Hong Kong, Hong Kong Special Administrative Region, China. zhuhch@hku.hk yguan@hku.hk. ; Biotechnology Research Group, Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia. State Key Laboratory of Emerging Infectious Diseases (The University of Hong Kong-Shenzhen Branch), Shenzhen Third People's Hospital, Shenzhen, China. Shantou University-The University of Hong Kong Joint Institute of Virology, Shantou University, Shantou, China. Centre of Influenza Research and State Key Laboratory of Emerging Infectious Diseases, School of Public Health, The University of Hong Kong, Hong Kong Special Administrative Region, China. zhuhch@hku.hk yguan@hku.hk.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26678874" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Camels/*virology ; Coinfection/epidemiology/veterinary/*virology ; Coronavirus Infections/epidemiology/veterinary/*virology ; Disease Reservoirs/veterinary/*virology ; Epidemiological Monitoring ; Humans ; Middle East Respiratory Syndrome Coronavirus/classification/*genetics/*physiology ; Molecular Sequence Data ; Phylogeny ; *Recombination, Genetic ; Saudi Arabia/epidemiology
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  • 64
    Publication Date: 2015-11-21
    Description: Eukaryotic cells coordinate growth with the availability of nutrients through the mechanistic target of rapamycin complex 1 (mTORC1), a master growth regulator. Leucine is of particular importance and activates mTORC1 via the Rag guanosine triphosphatases and their regulators GATOR1 and GATOR2. Sestrin2 interacts with GATOR2 and is a leucine sensor. Here we present the 2.7 angstrom crystal structure of Sestrin2 in complex with leucine. Leucine binds through a single pocket that coordinates its charged functional groups and confers specificity for the hydrophobic side chain. A loop encloses leucine and forms a lid-latch mechanism required for binding. A structure-guided mutation in Sestrin2 that decreases its affinity for leucine leads to a concomitant increase in the leucine concentration required for mTORC1 activation in cells. These results provide a structural mechanism of amino acid sensing by the mTORC1 pathway.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4698039/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4698039/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saxton, Robert A -- Knockenhauer, Kevin E -- Wolfson, Rachel L -- Chantranupong, Lynne -- Pacold, Michael E -- Wang, Tim -- Schwartz, Thomas U -- Sabatini, David M -- AI47389/AI/NIAID NIH HHS/ -- F30 CA189333/CA/NCI NIH HHS/ -- F31 CA180271/CA/NCI NIH HHS/ -- F31 CA189437/CA/NCI NIH HHS/ -- P41 GM103403/GM/NIGMS NIH HHS/ -- R01 AI047389/AI/NIAID NIH HHS/ -- R01 CA103866/CA/NCI NIH HHS/ -- R01CA103866/CA/NCI NIH HHS/ -- S10 RR029205/RR/NCRR NIH HHS/ -- T32 GM007753/GM/NIGMS NIH HHS/ -- T32GM007287/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2016 Jan 1;351(6268):53-8. doi: 10.1126/science.aad2087. Epub 2015 Nov 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA. Whitehead Institute for Biomedical Research, 9 Cambridge Center, Cambridge, MA 02142, USA. Howard Hughes Medical Institute, Department of Biology, MIT, Cambridge, MA 02139, USA. Koch Institute for Integrative Cancer Research, 77 Massachusetts Avenue, Cambridge, MA 02139, USA. Broad Institute of Harvard and MIT, 7 Cambridge Center, Cambridge, MA 02142, USA. ; Department of Biology, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA. ; Department of Biology, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA. Whitehead Institute for Biomedical Research, 9 Cambridge Center, Cambridge, MA 02142, USA. Howard Hughes Medical Institute, Department of Biology, MIT, Cambridge, MA 02139, USA. Koch Institute for Integrative Cancer Research, 77 Massachusetts Avenue, Cambridge, MA 02139, USA. Broad Institute of Harvard and MIT, 7 Cambridge Center, Cambridge, MA 02142, USA. sabatini@wi.mit.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26586190" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Crystallography, X-Ray ; HEK293 Cells ; Humans ; Leucine/*chemistry/metabolism ; Metabolic Networks and Pathways ; Molecular Sequence Data ; Multiprotein Complexes/chemistry/genetics/*metabolism ; Mutation ; Nuclear Proteins/*chemistry/metabolism ; Protein Binding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; TOR Serine-Threonine Kinases/chemistry/genetics/*metabolism
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  • 65
    Publication Date: 2014-04-12
    Description: Plant embryogenesis initiates with the establishment of an apical-basal axis; however, the molecular mechanisms accompanying this early event remain unclear. Here, we show that a small cysteine-rich peptide family is required for formation of the zygotic basal cell lineage and proembryo patterning in Arabidopsis. EMBRYO SURROUNDING FACTOR 1 (ESF1) peptides accumulate before fertilization in central cell gametes and thereafter in embryo-surrounding endosperm cells. Biochemical and structural analyses revealed cleavage of ESF1 propeptides to form biologically active mature peptides. Further, these peptides act in a non-cell-autonomous manner and synergistically with the receptor-like kinase SHORT SUSPENSOR to promote suspensor elongation through the YODA mitogen-activated protein kinase pathway. Our findings demonstrate that the second female gamete and its sexually derived endosperm regulate early embryonic patterning in flowering plants.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Costa, Liliana M -- Marshall, Eleanor -- Tesfaye, Mesfin -- Silverstein, Kevin A T -- Mori, Masashi -- Umetsu, Yoshitaka -- Otterbach, Sophie L -- Papareddy, Ranjith -- Dickinson, Hugh G -- Boutiller, Kim -- VandenBosch, Kathryn A -- Ohki, Shinya -- Gutierrez-Marcos, Jose F -- BB/F008082/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/L003023/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/L003023/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2014 Apr 11;344(6180):168-72. doi: 10.1126/science.1243005.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Sciences, University of Oxford, South Parks Road, OX1 3RB, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24723605" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arabidopsis/*embryology/genetics ; Arabidopsis Proteins/chemistry/genetics/*metabolism ; *Body Patterning ; Endosperm/embryology/genetics ; Flowers/*embryology/genetics ; Gene Duplication ; Gene Expression Regulation, Developmental ; Gene Expression Regulation, Plant ; Gene Knockout Techniques ; Interleukin-1 Receptor-Associated Kinases/metabolism ; MAP Kinase Kinase Kinases/metabolism ; Molecular Sequence Data ; Peptides/chemistry/genetics/metabolism ; Seeds/*embryology/genetics
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  • 66
    Publication Date: 2014-02-15
    Description: Evolutionary changes in traits involved in both ecological divergence and mate choice may produce reproductive isolation and speciation. However, there are few examples of such dual traits, and the genetic and molecular bases of their evolution have not been identified. We show that methyl-branched cuticular hydrocarbons (mbCHCs) are a dual trait that affects both desiccation resistance and mate choice in Drosophila serrata. We identify a fatty acid synthase mFAS (CG3524) responsible for mbCHC production in Drosophila and find that expression of mFAS is undetectable in oenocytes (cells that produce CHCs) of a closely related, desiccation-sensitive species, D. birchii, due in part to multiple changes in cis-regulatory sequences of mFAS. We suggest that ecologically influenced changes in the production of mbCHCs have contributed to reproductive isolation between the two species.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chung, Henry -- Loehlin, David W -- Dufour, Heloise D -- Vaccarro, Kathy -- Millar, Jocelyn G -- Carroll, Sean B -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2014 Mar 7;343(6175):1148-51. doi: 10.1126/science.1249998. Epub 2014 Feb 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Laboratory of Molecular Biology, University of Wisconsin, Madison, WI 53706, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24526311" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Desiccation ; Drosophila/*genetics/physiology ; Ecosystem ; Evolution, Molecular ; Fatty Acid Synthases/*genetics/physiology ; *Genes, Insect ; *Genetic Variation ; Hydrocarbons/*metabolism ; *Mating Preference, Animal ; Molecular Sequence Data ; *Reproductive Isolation
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  • 67
    Publication Date: 2014-09-23
    Description: Ribonucleotide reductase (RNR) supplies the balanced pools of deoxynucleotide triphosphates (dNTPs) necessary for DNA replication and maintenance of genomic integrity. RNR is subject to allosteric regulatory mechanisms in all eukaryotes, as well as to control by small protein inhibitors Sml1p and Spd1p in budding and fission yeast, respectively. Here, we show that the metazoan protein IRBIT forms a deoxyadenosine triphosphate (dATP)-dependent complex with RNR, which stabilizes dATP in the activity site of RNR and thus inhibits the enzyme. Formation of the RNR-IRBIT complex is regulated through phosphorylation of IRBIT, and ablation of IRBIT expression in HeLa cells causes imbalanced dNTP pools and altered cell cycle progression. We demonstrate a mechanism for RNR regulation in higher eukaryotes that acts by enhancing allosteric RNR inhibition by dATP.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arnaoutov, Alexei -- Dasso, Mary -- New York, N.Y. -- Science. 2014 Sep 19;345(6203):1512-5. doi: 10.1126/science.1251550.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Gene Regulation and Development, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA. arnaouta@mail.nih.gov. ; Laboratory of Gene Regulation and Development, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25237103" target="_blank"〉PubMed〈/a〉
    Keywords: Allosteric Regulation ; Amino Acid Sequence ; Catalytic Domain ; Deoxyadenine Nucleotides/*metabolism ; HeLa Cells ; Humans ; Immunoprecipitation ; Lectins, C-Type/genetics/*metabolism ; Membrane Proteins/genetics/*metabolism ; Molecular Sequence Data ; Phosphorylation ; Ribonucleotide Reductases/*antagonists & inhibitors/metabolism
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  • 68
    Publication Date: 2014-04-26
    Description: Using light to silence electrical activity in targeted cells is a major goal of optogenetics. Available optogenetic proteins that directly move ions to achieve silencing are inefficient, pumping only a single ion per photon across the cell membrane rather than allowing many ions per photon to flow through a channel pore. Building on high-resolution crystal-structure analysis, pore vestibule modeling, and structure-guided protein engineering, we designed and characterized a class of channelrhodopsins (originally cation-conducting) converted into chloride-conducting anion channels. These tools enable fast optical inhibition of action potentials and can be engineered to display step-function kinetics for stable inhibition, outlasting light pulses and for orders-of-magnitude-greater light sensitivity of inhibited cells. The resulting family of proteins defines an approach to more physiological, efficient, and sensitive optogenetic inhibition.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4096039/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4096039/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berndt, Andre -- Lee, Soo Yeun -- Ramakrishnan, Charu -- Deisseroth, Karl -- R01 DA020794/DA/NIDA NIH HHS/ -- R01 MH075957/MH/NIMH NIH HHS/ -- R01 MH086373/MH/NIMH NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2014 Apr 25;344(6182):420-4. doi: 10.1126/science.1252367.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bioengineering, Stanford University, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24763591" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Amino Acid Sequence ; Animals ; CA1 Region, Hippocampal/cytology ; CA3 Region, Hippocampal/cytology ; Chloride Channels/*chemistry/*metabolism ; Chlorides/*metabolism ; HEK293 Cells ; Humans ; Light ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; Neurons/*physiology ; Optogenetics ; Patch-Clamp Techniques ; Protein Engineering ; Rats ; Rats, Sprague-Dawley ; Recombinant Fusion Proteins/chemistry/metabolism ; Rhodopsin/*chemistry/genetics/*metabolism
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  • 69
    Publication Date: 2014-03-08
    Description: The excitatory neurotransmitter glutamate induces modulatory actions via the metabotropic glutamate receptors (mGlus), which are class C G protein-coupled receptors (GPCRs). We determined the structure of the human mGlu1 receptor seven-transmembrane (7TM) domain bound to a negative allosteric modulator, FITM, at a resolution of 2.8 angstroms. The modulator binding site partially overlaps with the orthosteric binding sites of class A GPCRs but is more restricted than most other GPCRs. We observed a parallel 7TM dimer mediated by cholesterols, which suggests that signaling initiated by glutamate's interaction with the extracellular domain might be mediated via 7TM interactions within the full-length receptor dimer. A combination of crystallography, structure-activity relationships, mutagenesis, and full-length dimer modeling provides insights about the allosteric modulation and activation mechanism of class C GPCRs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3991565/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3991565/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, Huixian -- Wang, Chong -- Gregory, Karen J -- Han, Gye Won -- Cho, Hyekyung P -- Xia, Yan -- Niswender, Colleen M -- Katritch, Vsevolod -- Meiler, Jens -- Cherezov, Vadim -- Conn, P Jeffrey -- Stevens, Raymond C -- P50 GM073197/GM/NIGMS NIH HHS/ -- R01 DK097376/DK/NIDDK NIH HHS/ -- R01 GM080403/GM/NIGMS NIH HHS/ -- R01 GM099842/GM/NIGMS NIH HHS/ -- R01 MH062646/MH/NIMH NIH HHS/ -- R01 MH090192/MH/NIMH NIH HHS/ -- R01 NS031373/NS/NINDS NIH HHS/ -- R21 NS078262/NS/NINDS NIH HHS/ -- R37 NS031373/NS/NINDS NIH HHS/ -- U54 GM094618/GM/NIGMS NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2014 Apr 4;344(6179):58-64. doi: 10.1126/science.1249489. Epub 2014 Mar 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24603153" target="_blank"〉PubMed〈/a〉
    Keywords: Allosteric Regulation ; Allosteric Site ; Amino Acid Sequence ; Benzamides/*chemistry/*metabolism ; Binding Sites ; Cholesterol ; Crystallography, X-Ray ; Humans ; Hydrophobic and Hydrophilic Interactions ; Ligands ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Protein Conformation ; Protein Multimerization ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Receptors, Metabotropic Glutamate/*chemistry/*metabolism ; Structure-Activity Relationship ; Thiazoles/*chemistry/*metabolism
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  • 70
    Publication Date: 2014-02-18
    Description: The human neocortex has numerous specialized functional areas whose formation is poorly understood. Here, we describe a 15-base pair deletion mutation in a regulatory element of GPR56 that selectively disrupts human cortex surrounding the Sylvian fissure bilaterally including "Broca's area," the primary language area, by disrupting regional GPR56 expression and blocking RFX transcription factor binding. GPR56 encodes a heterotrimeric guanine nucleotide-binding protein (G protein)-coupled receptor required for normal cortical development and is expressed in cortical progenitor cells. GPR56 expression levels regulate progenitor proliferation. GPR56 splice forms are highly variable between mice and humans, and the regulatory element of gyrencephalic mammals directs restricted lateral cortical expression. Our data reveal a mechanism by which control of GPR56 expression pattern by multiple alternative promoters can influence stem cell proliferation, gyral patterning, and, potentially, neocortex evolution.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4480613/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4480613/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bae, Byoung-Il -- Tietjen, Ian -- Atabay, Kutay D -- Evrony, Gilad D -- Johnson, Matthew B -- Asare, Ebenezer -- Wang, Peter P -- Murayama, Ayako Y -- Im, Kiho -- Lisgo, Steven N -- Overman, Lynne -- Sestan, Nenad -- Chang, Bernard S -- Barkovich, A James -- Grant, P Ellen -- Topcu, Meral -- Politsky, Jeffrey -- Okano, Hideyuki -- Piao, Xianhua -- Walsh, Christopher A -- 2R01NS035129/NS/NINDS NIH HHS/ -- G0700089/Medical Research Council/United Kingdom -- GR082557/Wellcome Trust/United Kingdom -- HHSN275200900011C/PHS HHS/ -- N01-HD-9-0011/HD/NICHD NIH HHS/ -- R01 NS035129/NS/NINDS NIH HHS/ -- U01 MH081896/MH/NIMH NIH HHS/ -- U01MH081896/MH/NIMH NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2014 Feb 14;343(6172):764-8. doi: 10.1126/science.1244392.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Genetics and Genomics, Manton Center for Orphan Disease, and Howard Hughes Medical Institute, Boston Children's Hospital, Broad Institute of MIT and Harvard, and Departments of Pediatrics and Neurology, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24531968" target="_blank"〉PubMed〈/a〉
    Keywords: *Alternative Splicing ; Animals ; Base Sequence ; Biological Evolution ; Body Patterning/*genetics ; Cats ; Cell Proliferation ; Cerebral Cortex/anatomy & histology/cytology/*embryology ; Codon, Nonsense ; Frontal Lobe/anatomy & histology/cytology/embryology ; Genetic Variation ; Haplotypes ; Humans ; Mice ; Molecular Sequence Data ; Neural Stem Cells/cytology/*physiology ; Pedigree ; Promoter Regions, Genetic/genetics ; Receptors, G-Protein-Coupled/*genetics ; Sequence Deletion
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  • 71
    Publication Date: 2014-03-22
    Description: The development of cells specialized for water conduction or support is a striking innovation of plants that has enabled them to colonize land. The NAC transcription factors regulate the differentiation of these cells in vascular plants. However, the path by which plants with these cells have evolved from their nonvascular ancestors is unclear. We investigated genes of the moss Physcomitrella patens that encode NAC proteins. Loss-of-function mutants formed abnormal water-conducting and supporting cells, as well as malformed sporophyte cells, and overexpression induced ectopic differentiation of water-conducting-like cells. Our results show conservation of transcriptional regulation and cellular function between moss and Arabidopsis thaliana water-conducting cells. The conserved genetic basis suggests roles for NAC proteins in the adaptation of plants to land.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xu, Bo -- Ohtani, Misato -- Yamaguchi, Masatoshi -- Toyooka, Kiminori -- Wakazaki, Mayumi -- Sato, Mayuko -- Kubo, Minoru -- Nakano, Yoshimi -- Sano, Ryosuke -- Hiwatashi, Yuji -- Murata, Takashi -- Kurata, Tetsuya -- Yoneda, Arata -- Kato, Ko -- Hasebe, Mitsuyasu -- Demura, Taku -- New York, N.Y. -- Science. 2014 Mar 28;343(6178):1505-8. doi: 10.1126/science.1248417. Epub 2014 Mar 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24652936" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological/*genetics ; Amino Acid Sequence ; Arabidopsis/genetics/*physiology ; Bryopsida/genetics/*physiology ; *Gene Expression Regulation, Plant ; Genetic Loci ; Genome, Plant ; Molecular Sequence Data ; Plant Proteins/genetics/*physiology ; Plant Stems/growth & development ; Trans-Activators/genetics/*physiology ; Transcription, Genetic ; Water/*physiology
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  • 72
    Publication Date: 2014-08-26
    Description: Sensory systems define an animal's capacity for perception and can evolve to promote survival in new environmental niches. We have uncovered a noncanonical mechanism for sweet taste perception that evolved in hummingbirds since their divergence from insectivorous swifts, their closest relatives. We observed the widespread absence in birds of an essential subunit (T1R2) of the only known vertebrate sweet receptor, raising questions about how specialized nectar feeders such as hummingbirds sense sugars. Receptor expression studies revealed that the ancestral umami receptor (the T1R1-T1R3 heterodimer) was repurposed in hummingbirds to function as a carbohydrate receptor. Furthermore, the molecular recognition properties of T1R1-T1R3 guided taste behavior in captive and wild hummingbirds. We propose that changing taste receptor function enabled hummingbirds to perceive and use nectar, facilitating the massive radiation of hummingbird species.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4302410/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4302410/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baldwin, Maude W -- Toda, Yasuka -- Nakagita, Tomoya -- O'Connell, Mary J -- Klasing, Kirk C -- Misaka, Takumi -- Edwards, Scott V -- Liberles, Stephen D -- R01 DC013289/DC/NIDCD NIH HHS/ -- R01DC013289/DC/NIDCD NIH HHS/ -- New York, N.Y. -- Science. 2014 Aug 22;345(6199):929-33. doi: 10.1126/science.1255097.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Organismic and Evolutionary Biology, Harvard University, and Museum of Comparative Zoology, Cambridge, MA 02138, USA. maudebaldwin@gmail.com stephen_liberles@hms.harvard.edu. ; Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, Japan. ; Bioinformatics and Molecular Evolution Group, School of Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland. ; Department of Animal Science, University of California, Davis, Davis, CA 95616, USA. ; Department of Organismic and Evolutionary Biology, Harvard University, and Museum of Comparative Zoology, Cambridge, MA 02138, USA. ; Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA. maudebaldwin@gmail.com stephen_liberles@hms.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25146290" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Evolution, Molecular ; Mice ; Molecular Sequence Data ; Plant Nectar ; Protein Structure, Tertiary ; Receptors, G-Protein-Coupled/chemistry/classification/*genetics ; Taste/*physiology ; Taste Perception/genetics/*physiology
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  • 73
    Publication Date: 2014-04-26
    Description: The hierarchical packaging of eukaryotic chromatin plays a central role in transcriptional regulation and other DNA-related biological processes. Here, we report the 11-angstrom-resolution cryogenic electron microscopy (cryo-EM) structures of 30-nanometer chromatin fibers reconstituted in the presence of linker histone H1 and with different nucleosome repeat lengths. The structures show a histone H1-dependent left-handed twist of the repeating tetranucleosomal structural units, within which the four nucleosomes zigzag back and forth with a straight linker DNA. The asymmetric binding and the location of histone H1 in chromatin play a role in the formation of the 30-nanometer fiber. Our results provide mechanistic insights into how nucleosomes compact into higher-order chromatin fibers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Song, Feng -- Chen, Ping -- Sun, Dapeng -- Wang, Mingzhu -- Dong, Liping -- Liang, Dan -- Xu, Rui-Ming -- Zhu, Ping -- Li, Guohong -- New York, N.Y. -- Science. 2014 Apr 25;344(6182):376-80. doi: 10.1126/science.1251413.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24763583" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Chromatin/chemistry/metabolism/*ultrastructure ; Cryoelectron Microscopy ; DNA/chemistry/*ultrastructure ; Histones/*chemistry/metabolism ; Imaging, Three-Dimensional ; Models, Molecular ; Molecular Sequence Data ; Nucleic Acid Conformation ; Nucleosomes/*ultrastructure ; Protein Conformation ; Recombinant Proteins/chemistry/metabolism ; Xenopus Proteins/chemistry ; Xenopus laevis
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  • 74
    Publication Date: 2014-09-13
    Description: Fucosylation of intestinal epithelial cells, catalyzed by fucosyltransferase 2 (Fut2), is a major glycosylation mechanism of host-microbiota symbiosis. Commensal bacteria induce epithelial fucosylation, and epithelial fucose is used as a dietary carbohydrate by many of these bacteria. However, the molecular and cellular mechanisms that regulate the induction of epithelial fucosylation are unknown. Here, we show that type 3 innate lymphoid cells (ILC3) induced intestinal epithelial Fut2 expression and fucosylation in mice. This induction required the cytokines interleukin-22 and lymphotoxin in a commensal bacteria-dependent and -independent manner, respectively. Disruption of intestinal fucosylation led to increased susceptibility to infection by Salmonella typhimurium. Our data reveal a role for ILC3 in shaping the gut microenvironment through the regulation of epithelial glycosylation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4774895/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4774895/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goto, Yoshiyuki -- Obata, Takashi -- Kunisawa, Jun -- Sato, Shintaro -- Ivanov, Ivaylo I -- Lamichhane, Aayam -- Takeyama, Natsumi -- Kamioka, Mariko -- Sakamoto, Mitsuo -- Matsuki, Takahiro -- Setoyama, Hiromi -- Imaoka, Akemi -- Uematsu, Satoshi -- Akira, Shizuo -- Domino, Steven E -- Kulig, Paulina -- Becher, Burkhard -- Renauld, Jean-Christophe -- Sasakawa, Chihiro -- Umesaki, Yoshinori -- Benno, Yoshimi -- Kiyono, Hiroshi -- 1R01DK098378/DK/NIDDK NIH HHS/ -- R01 DK098378/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2014 Sep 12;345(6202):1254009. doi: 10.1126/science.1254009. Epub 2014 Aug 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Mucosal Immunology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan. Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Saitama 332-0012, Japan. Microbe Division/Japan Collection of Microorganisms, RIKEN BioResource Center, Tsukuba 305-0074, Japan. ; Division of Mucosal Immunology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan. Microbe Division/Japan Collection of Microorganisms, RIKEN BioResource Center, Tsukuba 305-0074, Japan. ; Division of Mucosal Immunology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan. Laboratory of Vaccine Materials, National Institute of Biomedical Innovation, Osaka 567-0085, Japan. Division of Mucosal Immunology, International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan. ; Division of Mucosal Immunology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan. Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Saitama 332-0012, Japan. ; Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY 10032, USA. ; Division of Mucosal Immunology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan. ; Division of Mucosal Immunology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan. Nippon Institute for Biological Science, Tokyo 198-0024, Japan. ; Microbe Division/Japan Collection of Microorganisms, RIKEN BioResource Center, Tsukuba 305-0074, Japan. ; Yakult Central Institute, Tokyo 186-8650, Japan. ; Division of Innate Immune Regulation, International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan. Department of Mucosal Immunology, School of Medicine, Chiba University, 1-8-1 Inohana, Chuou-ku, Chiba, 260-8670, Japan. ; Laboratory of Host Defense, WPI Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan. ; Department of Obstetrics and Gynecology, Cellular and Molecular Biology Program, University of Michigan Medical Center, Ann Arbor, MI 48109-5617, USA. ; Institute of Experimental Immunology, University of Zurich, Winterthurerstrasse 190, Zurich CH-8057, Switzerland. ; Ludwig Institute for Cancer Research and Universite Catholique de Louvain, Brussels B-1200, Belgium. ; Nippon Institute for Biological Science, Tokyo 198-0024, Japan. Division of Bacterial Infection, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan. Medical Mycology Research Center, Chiba University, Chiba 260-8673, Japan. ; Benno Laboratory, Innovation Center, RIKEN, Wako, Saitama 351-0198, Japan. ; Division of Mucosal Immunology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan. Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Saitama 332-0012, Japan. Division of Mucosal Immunology, International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25214634" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Disease Models, Animal ; Fucose/*metabolism ; Fucosyltransferases/genetics/metabolism ; Germ-Free Life ; Glycosylation ; Goblet Cells/enzymology/immunology/microbiology ; Ileum/enzymology/immunology/microbiology ; *Immunity, Innate ; Interleukins/immunology ; Intestinal Mucosa/enzymology/*immunology/microbiology ; Lymphocytes/*immunology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Mice, Mutant Strains ; Microbiota/*immunology ; Molecular Sequence Data ; Paneth Cells/enzymology/immunology/microbiology ; Salmonella Infections/*immunology/microbiology ; *Salmonella typhimurium
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  • 75
    Publication Date: 2014-03-15
    Description: Ecological specialization should minimize niche overlap, yet herbivorous neotropical flies (Blepharoneura) and their lethal parasitic wasps (parasitoids) exhibit both extreme specialization and apparent niche overlap in host plants. From just two plant species at one site in Peru, we collected 3636 flowers yielding 1478 fly pupae representing 14 Blepharoneura fly species, 18 parasitoid species (14 Bellopius species), and parasitoid-host associations, all discovered through analysis of molecular data. Multiple sympatric species specialize on the same sex flowers of the same fly host-plant species-which suggests extreme niche overlap; however, niche partitioning was exposed by interactions between wasps and flies. Most Bellopius species emerged as adults from only one fly species, yet evidence from pupae (preadult emergence samples) show that most Bellopius also attacked additional fly species but never emerged as adults from those flies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Condon, Marty A -- Scheffer, Sonja J -- Lewis, Matthew L -- Wharton, Robert -- Adams, Dean C -- Forbes, Andrew A -- New York, N.Y. -- Science. 2014 Mar 14;343(6176):1240-4. doi: 10.1126/science.1245007.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Cornell College, Mount Vernon, IA 52314, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24626926" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Biodiversity ; Cucurbitaceae/*parasitology ; Flowers/parasitology ; *Food Chain ; *Herbivory ; Molecular Sequence Data ; Peru ; Pupa/parasitology ; Tephritidae/embryology/*parasitology ; Wasps/*physiology
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  • 76
    Publication Date: 2014-08-30
    Description: The New World Arctic, the last region of the Americas to be populated by humans, has a relatively well-researched archaeology, but an understanding of its genetic history is lacking. We present genome-wide sequence data from ancient and present-day humans from Greenland, Arctic Canada, Alaska, Aleutian Islands, and Siberia. We show that Paleo-Eskimos (~3000 BCE to 1300 CE) represent a migration pulse into the Americas independent of both Native American and Inuit expansions. Furthermore, the genetic continuity characterizing the Paleo-Eskimo period was interrupted by the arrival of a new population, representing the ancestors of present-day Inuit, with evidence of past gene flow between these lineages. Despite periodic abandonment of major Arctic regions, a single Paleo-Eskimo metapopulation likely survived in near-isolation for more than 4000 years, only to vanish around 700 years ago.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Raghavan, Maanasa -- DeGiorgio, Michael -- Albrechtsen, Anders -- Moltke, Ida -- Skoglund, Pontus -- Korneliussen, Thorfinn S -- Gronnow, Bjarne -- Appelt, Martin -- Gullov, Hans Christian -- Friesen, T Max -- Fitzhugh, William -- Malmstrom, Helena -- Rasmussen, Simon -- Olsen, Jesper -- Melchior, Linea -- Fuller, Benjamin T -- Fahrni, Simon M -- Stafford, Thomas Jr -- Grimes, Vaughan -- Renouf, M A Priscilla -- Cybulski, Jerome -- Lynnerup, Niels -- Lahr, Marta Mirazon -- Britton, Kate -- Knecht, Rick -- Arneborg, Jette -- Metspalu, Mait -- Cornejo, Omar E -- Malaspinas, Anna-Sapfo -- Wang, Yong -- Rasmussen, Morten -- Raghavan, Vibha -- Hansen, Thomas V O -- Khusnutdinova, Elza -- Pierre, Tracey -- Dneprovsky, Kirill -- Andreasen, Claus -- Lange, Hans -- Hayes, M Geoffrey -- Coltrain, Joan -- Spitsyn, Victor A -- Gotherstrom, Anders -- Orlando, Ludovic -- Kivisild, Toomas -- Villems, Richard -- Crawford, Michael H -- Nielsen, Finn C -- Dissing, Jorgen -- Heinemeier, Jan -- Meldgaard, Morten -- Bustamante, Carlos -- O'Rourke, Dennis H -- Jakobsson, Mattias -- Gilbert, M Thomas P -- Nielsen, Rasmus -- Willerslev, Eske -- New York, N.Y. -- Science. 2014 Aug 29;345(6200):1255832. doi: 10.1126/science.1255832.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Oster Voldgade 5-7, 1350 Copenhagen, Denmark. ; Department of Biology, Pennsylvania State University, 502 Wartik Laboratory, University Park, PA 16802, USA. ; Bioinformatics Centre, Department of Biology, University of Copenhagen, Ole Maaloes Vej 5, 2200 Copenhagen, Denmark. ; Bioinformatics Centre, Department of Biology, University of Copenhagen, Ole Maaloes Vej 5, 2200 Copenhagen, Denmark. Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA. ; Department of Evolutionary Biology, Uppsala University, Norbyvagen 18D, 75236 Uppsala, Sweden. Department of Genetics, Harvard Medical School, Boston, MA 02115, USA. ; Arctic Centre at the Ethnographic Collections (SILA), National Museum of Denmark, Frederiksholms Kanal 12, 1220 Copenhagen, Denmark. ; Department of Anthropology, University of Toronto, Toronto, Ontario M5S 2S2, Canada. ; Arctic Studies Center, Post Office Box 37012, Department of Anthropology, MRC 112, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013-7012, USA. ; Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Oster Voldgade 5-7, 1350 Copenhagen, Denmark. Department of Evolutionary Biology, Uppsala University, Norbyvagen 18D, 75236 Uppsala, Sweden. ; Center for Biological Sequence Analysis, Department of Systems Biology, Technical University of Denmark, Kemitorvet, 2800 Kongens Lyngby, Denmark. ; AMS 14C Dating Centre, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, 8000 Aarhus C, Denmark. ; Anthropological Laboratory, Institute of Forensic Medicine, Faculty of Health Sciences, University of Copenhagen, Frederik V's Vej 11, 2100 Copenhagen, Denmark. ; Department of Earth System Science, University of California, Irvine, CA 92697, USA. ; Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Oster Voldgade 5-7, 1350 Copenhagen, Denmark. AMS 14C Dating Centre, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, 8000 Aarhus C, Denmark. ; Department of Archaeology, Memorial University, Queen's College, 210 Prince Philip Drive, St. John's, Newfoundland, A1C 5S7, Canada. Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, 04103 Leipzig, Germany. ; Department of Archaeology, Memorial University, Queen's College, 210 Prince Philip Drive, St. John's, Newfoundland, A1C 5S7, Canada. ; Canadian Museum of History, 100 Rue Laurier, Gatineau, Quebec K1A 0M8, Canada. Department of Anthropology, University of Western Ontario, 1151 Richmond Street North, London N6A 5C2, Canada. ; Leverhulme Centre for Human Evolutionary Studies, Department of Archaeology and Anthropology, University of Cambridge, Cambridge CB2 1QH, UK. ; Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, 04103 Leipzig, Germany. Department of Archaeology, University of Aberdeen, St. Mary's Building, Elphinstone Road, Aberdeen AB24 3UF, Scotland, UK. ; Department of Archaeology, University of Aberdeen, St. Mary's Building, Elphinstone Road, Aberdeen AB24 3UF, Scotland, UK. ; National Museum of Denmark, Frederiksholms kanal 12, 1220 Copenhagen, Denmark. School of Geosciences, University of Edinburgh, Edinburgh EH8 9XP, UK. ; Estonian Biocentre, Evolutionary Biology Group, Tartu 51010, Estonia. Department of Evolutionary Biology, University of Tartu, Tartu 51010, Estonia. ; Department of Genetics, School of Medicine, Stanford University, Stanford, CA 94305, USA. School of Biological Sciences, Washington State University, Post Office Box 644236, Pullman, WA 99164, USA. ; Department of Integrative Biology, University of California, Berkeley, CA 94720, USA. Ancestry.com DNA LLC, San Francisco, CA 94107, USA. ; Informatics and Bio-computing, Ontario Institute for Cancer Research, 661 University Avenue, Suite 510, Toronto, Ontario, M5G 0A3, Canada. ; Center for Genomic Medicine, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100 Copenhagen, Denmark. ; Institute of Biochemistry and Genetics, Ufa Scientific Center of Russian Academy of Sciences, Ufa, Russia. Department of Genetics and Fundamental Medicine, Bashkir State University, Ufa, Bashkortostan 450074, Russia. ; State Museum for Oriental Art, 12a, Nikitsky Boulevard, Moscow 119019, Russia. ; Greenland National Museum and Archives, Post Office Box 145, 3900 Nuuk, Greenland. ; Division of Endocrinology, Metabolism and Molecular Medicine, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA. Department of Anthropology, Weinberg College of Arts and Sciences, Northwestern University, Evanston, IL 60208, USA. Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA. ; Department of Anthropology, University of Utah, Salt Lake City, UT 84112, USA. ; Research Centre for Medical Genetics of Russian Academy of Medical Sciences, 1 Moskvorechie, Moscow 115478, Russia. ; Department of Archaeology and Classical Studies, Stockholm University, Stockholm, Sweden. ; Estonian Biocentre, Evolutionary Biology Group, Tartu 51010, Estonia. Department of Archaeology and Anthropology, University of Cambridge, Cambridge CB2 1QH, UK. ; Laboratory of Biological Anthropology, University of Kansas, Lawrence, KS 66045, USA. ; Department of Genetics, School of Medicine, Stanford University, Stanford, CA 94305, USA. ; Department of Evolutionary Biology, Uppsala University, Norbyvagen 18D, 75236 Uppsala, Sweden. ; Department of Integrative Biology, University of California, Berkeley, CA 94720, USA. ; Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Oster Voldgade 5-7, 1350 Copenhagen, Denmark. ewillerslev@snm.ku.dk.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25170159" target="_blank"〉PubMed〈/a〉
    Keywords: Alaska/ethnology ; Arctic Regions/ethnology ; Base Sequence ; Bone and Bones ; Canada/ethnology ; DNA, Mitochondrial/genetics ; Genome, Human/*genetics ; Greenland/ethnology ; Hair ; History, Ancient ; *Human Migration ; Humans ; Inuits/ethnology/*genetics/history ; Molecular Sequence Data ; Siberia/ethnology ; Survivors/history ; Tooth
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  • 77
    Publication Date: 2014-10-18
    Description: Nitrogen (N) is a critical nutrient for plants but is often distributed unevenly in the soil. Plants therefore have evolved a systemic mechanism by which N starvation on one side of the root system leads to a compensatory and increased nitrate uptake on the other side. Here, we study the molecular systems that support perception of N and the long-distance signaling needed to alter root development. Rootlets starved of N secrete small peptides that are translocated to the shoot and received by two leucine-rich repeat receptor kinases (LRR-RKs). Arabidopsis plants deficient in this pathway show growth retardation accompanied with N-deficiency symptoms. Thus, signaling from the root to the shoot helps the plant adapt to fluctuations in local N availability.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tabata, Ryo -- Sumida, Kumiko -- Yoshii, Tomoaki -- Ohyama, Kentaro -- Shinohara, Hidefumi -- Matsubayashi, Yoshikatsu -- New York, N.Y. -- Science. 2014 Oct 17;346(6207):343-6. doi: 10.1126/science.1257800.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biological Science, Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan. ; Department of Applied Molecular Biosciences, Graduate School of Bio-Agricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan. ; Division of Biological Science, Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan. matsu@bio.nagoya-u.ac.jp.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25324386" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arabidopsis/genetics/*growth & development/metabolism ; Arabidopsis Proteins/genetics/*metabolism ; Molecular Sequence Data ; Nitrogen/*metabolism ; Peptides/*metabolism ; Plant Roots/genetics/*growth & development/metabolism ; Plant Shoots/genetics/*growth & development/metabolism ; Receptors, Peptide/genetics/*metabolism ; Signal Transduction
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  • 78
    Publication Date: 2014-07-26
    Description: Proteins that cap the ends of the actin filament are essential regulators of cytoskeleton dynamics. Whereas several proteins cap the rapidly growing barbed end, tropomodulin (Tmod) is the only protein known to cap the slowly growing pointed end. The lack of structural information severely limits our understanding of Tmod's capping mechanism. We describe crystal structures of actin complexes with the unstructured amino-terminal and the leucine-rich repeat carboxy-terminal domains of Tmod. The structures and biochemical analysis of structure-inspired mutants showed that one Tmod molecule interacts with three actin subunits at the pointed end, while also contacting two tropomyosin molecules on each side of the filament. We found that Tmod achieves high-affinity binding through several discrete low-affinity interactions, which suggests a mechanism for controlled subunit exchange at the pointed end.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4367809/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4367809/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rao, Jampani Nageswara -- Madasu, Yadaiah -- Dominguez, Roberto -- GM-0080/GM/NIGMS NIH HHS/ -- R01 GM073791/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2014 Jul 25;345(6195):463-7. doi: 10.1126/science.1256159.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA. ; Department of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA. droberto@mail.med.upenn.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25061212" target="_blank"〉PubMed〈/a〉
    Keywords: Actin Cytoskeleton/*chemistry ; Actins/*chemistry ; Amino Acid Sequence ; Animals ; Crystallography, X-Ray ; Humans ; Molecular Sequence Data ; Mutation ; Protein Binding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Rabbits ; Tropomodulin/*chemistry/genetics
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  • 79
    Publication Date: 2014-08-26
    Description: The ethanolamine utilization (eut) locus of Enterococcus faecalis, containing at least 19 genes distributed over four polycistronic messenger RNAs, appears to be regulated by a single adenosyl cobalamine (AdoCbl)-responsive riboswitch. We report that the AdoCbl-binding riboswitch is part of a small, trans-acting RNA, EutX, which additionally contains a dual-hairpin substrate for the RNA binding-response regulator, EutV. In the absence of AdoCbl, EutX uses this structure to sequester EutV. EutV is known to regulate the eut messenger RNAs by binding dual-hairpin structures that overlap terminators and thus prevent transcription termination. In the presence of AdoCbl, EutV cannot bind to EutX and, instead, causes transcriptional read through of multiple eut genes. This work introduces riboswitch-mediated control of protein sequestration as a posttranscriptional mechanism to coordinately regulate gene expression.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4356242/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4356242/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉DebRoy, Sruti -- Gebbie, Margo -- Ramesh, Arati -- Goodson, Jonathan R -- Cruz, Melissa R -- van Hoof, Ambro -- Winkler, Wade C -- Garsin, Danielle A -- P30 DK056338/DK/NIDDK NIH HHS/ -- R01 AI076406/AI/NIAID NIH HHS/ -- R01 AI110432/AI/NIAID NIH HHS/ -- R01 GM099790/GM/NIGMS NIH HHS/ -- R01AI076406/AI/NIAID NIH HHS/ -- R01GM099790/GM/NIGMS NIH HHS/ -- R56 AI110432/AI/NIAID NIH HHS/ -- R56AI110432/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2014 Aug 22;345(6199):937-40. doi: 10.1126/science.1255091.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Molecular Genetics, The University of Texas Health Science Center at Houston, TX 77030, USA. ; Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, USA. ; Department of Biochemistry, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA. ; Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, USA. danielle.a.garsin@uth.tmc.edu wwinkler@umd.edu. ; Department of Microbiology and Molecular Genetics, The University of Texas Health Science Center at Houston, TX 77030, USA. danielle.a.garsin@uth.tmc.edu wwinkler@umd.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25146291" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Cobamides/*metabolism ; Enterococcus faecalis/*genetics/metabolism ; Ethanolamine/*metabolism ; *Gene Expression Regulation, Bacterial ; Molecular Sequence Data ; Nucleic Acid Conformation ; RNA, Messenger/chemistry/genetics/*metabolism ; *Response Elements ; Riboswitch/genetics/*physiology ; *Transcription, Genetic
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  • 80
    Publication Date: 2014-10-25
    Description: Some ferns possess the ability to control their sex ratio to maintain genetic variation in their colony with the aid of antheridiogen pheromones, antheridium (male organ)-inducing compounds that are related to gibberellin. We determined that ferns have evolved an antheridiogen-mediated communication system to produce males by modifying the gibberellin biosynthetic pathway, which is split between two individuals of different developmental stages in the colony. Antheridiogen acts as a bridge between them because it is more readily taken up by prothalli than bioactive gibberellin. The pathway initiates in early-maturing prothalli (gametophytes) within a colony, which produce antheridiogens and secrete them into the environment. After the secreted antheridiogen is absorbed by neighboring late-maturing prothalli, it is modified in to bioactive gibberellin to trigger male organ formation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tanaka, Junmu -- Yano, Kenji -- Aya, Koichiro -- Hirano, Ko -- Takehara, Sayaka -- Koketsu, Eriko -- Ordonio, Reynante Lacsamana -- Park, Seung-Hyun -- Nakajima, Masatoshi -- Ueguchi-Tanaka, Miyako -- Matsuoka, Makoto -- New York, N.Y. -- Science. 2014 Oct 24;346(6208):469-73. doi: 10.1126/science.1259923.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan. ; Department of Applied Biological Chemistry, University of Tokyo, Tokyo 113-8657, Japan. ; Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan. mueguchi@nuagr1.agr.nagoya-u.ac.jp makoto@nuagr1.agr.nagoya-u.ac.jp.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25342803" target="_blank"〉PubMed〈/a〉
    Keywords: Ferns/*cytology/*physiology ; *Gametogenesis, Plant ; Gene Expression ; Gibberellins/*biosynthesis/genetics ; Metabolic Networks and Pathways ; Molecular Sequence Data ; Pheromones/metabolism/*physiology ; Sex Ratio ; Spatio-Temporal Analysis
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  • 81
    Publication Date: 2014-12-17
    Description: To provide context for the diversification of archosaurs--the group that includes crocodilians, dinosaurs, and birds--we generated draft genomes of three crocodilians: Alligator mississippiensis (the American alligator), Crocodylus porosus (the saltwater crocodile), and Gavialis gangeticus (the Indian gharial). We observed an exceptionally slow rate of genome evolution within crocodilians at all levels, including nucleotide substitutions, indels, transposable element content and movement, gene family evolution, and chromosomal synteny. When placed within the context of related taxa including birds and turtles, this suggests that the common ancestor of all of these taxa also exhibited slow genome evolution and that the comparatively rapid evolution is derived in birds. The data also provided the opportunity to analyze heterozygosity in crocodilians, which indicates a likely reduction in population size for all three taxa through the Pleistocene. Finally, these data combined with newly published bird genomes allowed us to reconstruct the partial genome of the common ancestor of archosaurs, thereby providing a tool to investigate the genetic starting material of crocodilians, birds, and dinosaurs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4386873/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4386873/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Green, Richard E -- Braun, Edward L -- Armstrong, Joel -- Earl, Dent -- Nguyen, Ngan -- Hickey, Glenn -- Vandewege, Michael W -- St John, John A -- Capella-Gutierrez, Salvador -- Castoe, Todd A -- Kern, Colin -- Fujita, Matthew K -- Opazo, Juan C -- Jurka, Jerzy -- Kojima, Kenji K -- Caballero, Juan -- Hubley, Robert M -- Smit, Arian F -- Platt, Roy N -- Lavoie, Christine A -- Ramakodi, Meganathan P -- Finger, John W Jr -- Suh, Alexander -- Isberg, Sally R -- Miles, Lee -- Chong, Amanda Y -- Jaratlerdsiri, Weerachai -- Gongora, Jaime -- Moran, Christopher -- Iriarte, Andres -- McCormack, John -- Burgess, Shane C -- Edwards, Scott V -- Lyons, Eric -- Williams, Christina -- Breen, Matthew -- Howard, Jason T -- Gresham, Cathy R -- Peterson, Daniel G -- Schmitz, Jurgen -- Pollock, David D -- Haussler, David -- Triplett, Eric W -- Zhang, Guojie -- Irie, Naoki -- Jarvis, Erich D -- Brochu, Christopher A -- Schmidt, Carl J -- McCarthy, Fiona M -- Faircloth, Brant C -- Hoffmann, Federico G -- Glenn, Travis C -- Gabaldon, Toni -- Paten, Benedict -- Ray, David A -- 1U41HG006992-2/HG/NHGRI NIH HHS/ -- 1U41HG007234-01/HG/NHGRI NIH HHS/ -- 5U01HG004695/HG/NHGRI NIH HHS/ -- R01 HG002939/HG/NHGRI NIH HHS/ -- U41 HG006992/HG/NHGRI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2014 Dec 12;346(6215):1254449. doi: 10.1126/science.1254449. Epub 2014 Dec 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biomolecular Engineering, University of California, Santa Cruz, CA 95064, USA. ed@soe.ucsc.edu david.a.ray@ttu.edu. ; Department of Biology and Genetics Institute, University of Florida, Gainesville, FL 32611, USA. ; Department of Biomolecular Engineering, University of California, Santa Cruz, CA 95064, USA. Center for Biomolecular Science and Engineering, University of California, Santa Cruz, CA 95064, USA. ; Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University, Mississippi State, MS 39762, USA. ; Department of Biomolecular Engineering, University of California, Santa Cruz, CA 95064, USA. ; Bioinformatics and Genomics Programme, Centre for Genomic Regulation, 08003 Barcelona, Spain. Universitat Pompeu Fabra, 08003 Barcelona, Spain. ; Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, CO 80045, USA. Department of Biology, University of Texas, Arlington, TX 76019, USA. ; Department of Computer and Information Sciences, University of Delaware, Newark, DE 19717, USA. ; Department of Biology, University of Texas, Arlington, TX 76019, USA. ; Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile. ; Genetic Information Research Institute, Mountain View, CA 94043, USA. ; Institute for Systems Biology, Seattle, WA 98109, USA. ; Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University, Mississippi State, MS 39762, USA. Institute for Genomics, Biocomputing and Biotechnology, Mississippi State University, Mississippi State, MS 39762, USA. ; Department of Environmental Health Science, University of Georgia, Athens, GA 30602, USA. ; Institute of Experimental Pathology (ZMBE), University of Munster, D-48149 Munster, Germany. Department of Evolutionary Biology (EBC), Uppsala University, SE-752 36 Uppsala, Sweden. ; Porosus Pty. Ltd., Palmerston, NT 0831, Australia. Faculty of Veterinary Science, University of Sydney, Sydney, NSW 2006, Australia. Centre for Crocodile Research, Noonamah, NT 0837, Australia. ; Faculty of Veterinary Science, University of Sydney, Sydney, NSW 2006, Australia. ; Departamento de Desarrollo Biotecnologico, Instituto de Higiene, Facultad de Medicina, Universidad de la Republica, Montevideo, Uruguay. ; Moore Laboratory of Zoology, Occidental College, Los Angeles, CA 90041, USA. ; College of Agriculture and Life Sciences, University of Arizona, Tucson, AZ 85721, USA. ; Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA. ; School of Plant Sciences, University of Arizona, Tucson, AZ 85721, USA. ; Department of Molecular Biomedical Sciences, North Carolina State University, Raleigh, NC 27607, USA. ; Howard Hughes Medical Institute, Department of Neurobiology, Duke University Medical Center, Durham, NC 27710, USA. ; Institute for Genomics, Biocomputing and Biotechnology, Mississippi State University, Mississippi State, MS 39762, USA. ; Institute for Genomics, Biocomputing and Biotechnology, Mississippi State University, Mississippi State, MS 39762, USA. Department of Plant and Soil Sciences, Mississippi State University, Mississippi State, MS 39762, USA. ; Institute of Experimental Pathology (ZMBE), University of Munster, D-48149 Munster, Germany. ; Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, CO 80045, USA. ; Center for Biomolecular Science and Engineering, University of California, Santa Cruz, CA 95064, USA. Howard Hughes Medical Institute, Bethesda, MD 20814, USA. ; Department of Microbiology and Cell Science, University of Florida, Gainesville, FL 32611, USA. ; China National GeneBank, BGI-Shenzhen, Shenzhen, China. Center for Social Evolution, Department of Biology, University of Copenhagen, Copenhagen, Denmark. ; Department of Biological Sciences, Graduate School of Science, University of Tokyo, Tokyo, Japan. ; Department of Earth and Environmental Sciences, University of Iowa, Iowa City, IA 52242, USA. ; Department of Animal and Food Sciences, University of Delaware, Newark, DE 19717, USA. ; School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ 85721, USA. ; Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA 90019, USA. Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA. ; Bioinformatics and Genomics Programme, Centre for Genomic Regulation, 08003 Barcelona, Spain. Universitat Pompeu Fabra, 08003 Barcelona, Spain. Institucio Catalana de Recerca i Estudis Avancats, 08010 Barcelona, Spain. ; Center for Biomolecular Science and Engineering, University of California, Santa Cruz, CA 95064, USA. ; Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University, Mississippi State, MS 39762, USA. Institute for Genomics, Biocomputing and Biotechnology, Mississippi State University, Mississippi State, MS 39762, USA. Department of Biological Sciences, Texas Tech University, Lubbock, TX 79409, USA. ed@soe.ucsc.edu david.a.ray@ttu.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25504731" target="_blank"〉PubMed〈/a〉
    Keywords: Alligators and Crocodiles/classification/*genetics ; Animals ; Biological Evolution ; Birds/classification/*genetics ; Conserved Sequence ; DNA Transposable Elements ; Dinosaurs/classification/*genetics ; *Evolution, Molecular ; Genetic Variation ; *Genome ; Molecular Sequence Annotation ; Molecular Sequence Data ; Phylogeny ; Reptiles/classification/genetics ; Sequence Alignment ; Sequence Analysis, DNA ; Transcriptome
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  • 82
    Publication Date: 2014-01-18
    Description: Transcription factors (TFs) are key players in evolution. Changes affecting their function can yield novel life forms but may also have deleterious effects. Consequently, gene duplication events that release one gene copy from selective pressure are thought to be the common mechanism by which TFs acquire new activities. Here, we show that LEAFY, a major regulator of flower development and cell division in land plants, underwent changes to its DNA binding specificity, even though plant genomes generally contain a single copy of the LEAFY gene. We examined how these changes occurred at the structural level and identify an intermediate LEAFY form in hornworts that appears to adopt all different specificities. This promiscuous intermediate could have smoothed the evolutionary transitions, thereby allowing LEAFY to evolve new binding specificities while remaining a single-copy gene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sayou, Camille -- Monniaux, Marie -- Nanao, Max H -- Moyroud, Edwige -- Brockington, Samuel F -- Thevenon, Emmanuel -- Chahtane, Hicham -- Warthmann, Norman -- Melkonian, Michael -- Zhang, Yong -- Wong, Gane Ka-Shu -- Weigel, Detlef -- Parcy, Francois -- Dumas, Renaud -- New York, N.Y. -- Science. 2014 Feb 7;343(6171):645-8. doi: 10.1126/science.1248229. Epub 2014 Jan 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CNRS, Laboratoire de Physiologie Cellulaire et Vegetale (LPCV), UMR 5168, 38054 Grenoble, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24436181" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arabidopsis Proteins/chemistry/classification/genetics ; DNA, Plant/*chemistry ; DNA-Binding Proteins/*chemistry/classification/*genetics ; Electrophoretic Mobility Shift Assay ; *Evolution, Molecular ; Gene Dosage ; Molecular Sequence Data ; Mutation ; Phylogeny ; Plant Proteins/*chemistry/classification/*genetics ; Protein Binding/genetics ; Protein Structure, Tertiary ; Species Specificity ; Transcription Factors/chemistry/classification/genetics
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  • 83
    Publication Date: 2014-08-30
    Description: The genetic changes underlying the initial steps of animal domestication are still poorly understood. We generated a high-quality reference genome for the rabbit and compared it to resequencing data from populations of wild and domestic rabbits. We identified more than 100 selective sweeps specific to domestic rabbits but only a relatively small number of fixed (or nearly fixed) single-nucleotide polymorphisms (SNPs) for derived alleles. SNPs with marked allele frequency differences between wild and domestic rabbits were enriched for conserved noncoding sites. Enrichment analyses suggest that genes affecting brain and neuronal development have often been targeted during domestication. We propose that because of a truly complex genetic background, tame behavior in rabbits and other domestic animals evolved by shifts in allele frequencies at many loci, rather than by critical changes at only a few domestication loci.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carneiro, Miguel -- Rubin, Carl-Johan -- Di Palma, Federica -- Albert, Frank W -- Alfoldi, Jessica -- Barrio, Alvaro Martinez -- Pielberg, Gerli -- Rafati, Nima -- Sayyab, Shumaila -- Turner-Maier, Jason -- Younis, Shady -- Afonso, Sandra -- Aken, Bronwen -- Alves, Joel M -- Barrell, Daniel -- Bolet, Gerard -- Boucher, Samuel -- Burbano, Hernan A -- Campos, Rita -- Chang, Jean L -- Duranthon, Veronique -- Fontanesi, Luca -- Garreau, Herve -- Heiman, David -- Johnson, Jeremy -- Mage, Rose G -- Peng, Ze -- Queney, Guillaume -- Rogel-Gaillard, Claire -- Ruffier, Magali -- Searle, Steve -- Villafuerte, Rafael -- Xiong, Anqi -- Young, Sarah -- Forsberg-Nilsson, Karin -- Good, Jeffrey M -- Lander, Eric S -- Ferrand, Nuno -- Lindblad-Toh, Kerstin -- Andersson, Leif -- 095908/Wellcome Trust/United Kingdom -- U54 HG003067/HG/NHGRI NIH HHS/ -- WT095908/Wellcome Trust/United Kingdom -- WT098051/Wellcome Trust/United Kingdom -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2014 Aug 29;345(6200):1074-9. doi: 10.1126/science.1253714.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CIBIO/InBIO, Centro de Investigacao em Biodiversidade e Recursos Geneticos, Campus Agrario de Vairao, Universidade do Porto, 4485-661, Vairao, Portugal. ; Science for Life Laboratory Uppsala, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden. ; Broad Institute of Harvard and Massachusetts Institute of Technology, 7 Cambridge Center, Cambridge, MA 02142, USA. Vertebrate and Health Genomics, The Genome Analysis Centre, Norwich, UK. ; Department of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany. ; Broad Institute of Harvard and Massachusetts Institute of Technology, 7 Cambridge Center, Cambridge, MA 02142, USA. ; Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden. ; Science for Life Laboratory Uppsala, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden. Department of Animal Production, Ain Shams University, Shoubra El-Kheima, Cairo, Egypt. ; Wellcome Trust Sanger Institute, Hinxton, UK. European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1SD, UK. ; CIBIO/InBIO, Centro de Investigacao em Biodiversidade e Recursos Geneticos, Campus Agrario de Vairao, Universidade do Porto, 4485-661, Vairao, Portugal. Department of Genetics, University of Cambridge, Cambridge CB2 3EH, UK. ; Institut National de la Recherche Agronomique (INRA), UMR1388 Genetique, Physiologie et Systemes d'Elevage, F-31326 Castanet-Tolosan, France. ; Labovet Conseil, BP539, 85505 Les Herbiers Cedex, France. ; INRA, UMR1198 Biologie du Developpement et Reproduction, F-78350 Jouy-en-Josas, France. ; Department of Agricultural and Food Sciences, Division of Animal Sciences, University of Bologna, 40127 Bologna, Italy. ; Laboratory of Immunology, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health, Bethesda, MD 20892, USA. ; U.S. Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, 2800 Mitchell Drive, Walnut Creek, CA 94598, USA. ; ANTAGENE, Animal Genomics Laboratory, Lyon, France. ; INRA, UMR1313 Genetique Animale et Biologie Integrative, F- 78350, Jouy-en-Josas, France. ; Wellcome Trust Sanger Institute, Hinxton, UK. ; Instituto de Estudios Sociales Avanzados, (IESA-CSIC) Campo Santo de los Martires 7, Cordoba, Spain. ; Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden. ; Department of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany. Division of Biological Sciences, The University of Montana, Missoula, MT 59812, USA. ; CIBIO/InBIO, Centro de Investigacao em Biodiversidade e Recursos Geneticos, Campus Agrario de Vairao, Universidade do Porto, 4485-661, Vairao, Portugal. Departamento de Biologia, Faculdade de Ciencias, Universidade do Porto, Rua do Campo Alegre sn. 4169-007 Porto, Portugal. ; Science for Life Laboratory Uppsala, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden. Broad Institute of Harvard and Massachusetts Institute of Technology, 7 Cambridge Center, Cambridge, MA 02142, USA. kersli@broadinstitute.org leif.andersson@imbim.uu.se. ; Science for Life Laboratory Uppsala, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden. Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden. Department of Veterinary Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843-4458, USA. kersli@broadinstitute.org leif.andersson@imbim.uu.se.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25170157" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Domestic/anatomy & histology/*genetics/psychology ; Animals, Wild/anatomy & histology/*genetics/psychology ; Base Sequence ; Behavior, Animal ; Breeding ; Evolution, Molecular ; Gene Frequency ; Genetic Loci ; Genome/genetics ; Molecular Sequence Data ; Phenotype ; Polymorphism, Single Nucleotide ; Rabbits/anatomy & histology/*genetics/psychology ; Selection, Genetic ; Sequence Analysis, DNA
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  • 84
    Publication Date: 2014-07-12
    Description: Heterosexual transmission of HIV-1 typically results in one genetic variant establishing systemic infection. We compared, for 137 linked transmission pairs, the amino acid sequences encoded by non-envelope genes of viruses in both partners and demonstrate a selection bias for transmission of residues that are predicted to confer increased in vivo fitness on viruses in the newly infected, immunologically naive recipient. Although tempered by transmission risk factors, such as donor viral load, genital inflammation, and recipient gender, this selection bias provides an overall transmission advantage for viral quasispecies that are dominated by viruses with high in vivo fitness. Thus, preventative or therapeutic approaches that even marginally reduce viral fitness may lower the overall transmission rates and offer long-term benefits even upon successful transmission.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4289910/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4289910/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carlson, Jonathan M -- Schaefer, Malinda -- Monaco, Daniela C -- Batorsky, Rebecca -- Claiborne, Daniel T -- Prince, Jessica -- Deymier, Martin J -- Ende, Zachary S -- Klatt, Nichole R -- DeZiel, Charles E -- Lin, Tien-Ho -- Peng, Jian -- Seese, Aaron M -- Shapiro, Roger -- Frater, John -- Ndung'u, Thumbi -- Tang, Jianming -- Goepfert, Paul -- Gilmour, Jill -- Price, Matt A -- Kilembe, William -- Heckerman, David -- Goulder, Philip J R -- Allen, Todd M -- Allen, Susan -- Hunter, Eric -- 2P51RR000165-51/RR/NCRR NIH HHS/ -- G108/626/Medical Research Council/United Kingdom -- OD P51OD11132/OD/NIH HHS/ -- P01-AI074415/AI/NIAID NIH HHS/ -- P30 AI050409/AI/NIAID NIH HHS/ -- P51 OD010425/OD/NIH HHS/ -- P51 OD011132/OD/NIH HHS/ -- P51RR165/RR/NCRR NIH HHS/ -- R01 AI064060/AI/NIAID NIH HHS/ -- R01 AI64060/AI/NIAID NIH HHS/ -- R37 AI051231/AI/NIAID NIH HHS/ -- R37 AI51231/AI/NIAID NIH HHS/ -- T32 AI007387/AI/NIAID NIH HHS/ -- T32-AI007387/AI/NIAID NIH HHS/ -- U01 AI 66454/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2014 Jul 11;345(6193):1254031. doi: 10.1126/science.1254031. Epub 2014 Jul 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Microsoft Research, Redmond, WA 98052, USA. carlson@microsoft.com ehunte4@emory.edu. ; Emory Vaccine Center at Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA. ; Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard University, Cambridge, MA 02114, USA. ; Microsoft Research, Redmond, WA 98052, USA. ; Division of Infectious Diseases, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA. ; Nuffield Department of Clinical Medicine, University of Oxford, Oxford OX1 7BN, UK. National Institute of Health Research, Oxford Biomedical Research Centre, Oxford OX3 7LE, UK. Oxford Martin School, University of Oxford, Oxford OX1 3BD, UK. ; Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard University, Cambridge, MA 02114, USA. HIV Pathogenesis Programme, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban 4013, South Africa. KwaZulu-Natal Research Institute for Tuberculosis and HIV (K-RITH), Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban 4001, South Africa. Max Planck Institute for Infection Biology, D-10117 Berlin, Germany. ; Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA. ; International AIDS Vaccine Initiative, London SW10 9NH, UK. Imperial College of Science Technology and Medicine, London SW10 9NH, UK. ; International AIDS Vaccine Initiative, San Francisco, CA 94105, USA. Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA 94105, USA. ; Rwanda-Zambia HIV Research Group: Zambia-Emory HIV Research Project, Lusaka, Zambia. ; Microsoft Research, Los Angeles, CA 98117, USA. ; HIV Pathogenesis Programme, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban 4013, South Africa. Department of Paediatrics, University of Oxford, Oxford OX1 3SY, UK. ; Rwanda-Zambia HIV Research Group: Zambia-Emory HIV Research Project, Lusaka, Zambia. Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA 30322, USA. Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA. ; International AIDS Vaccine Initiative, San Francisco, CA 94105, USA. Microsoft Research, Los Angeles, CA 98117, USA. Department of Paediatrics, University of Oxford, Oxford OX1 3SY, UK. ; Emory Vaccine Center at Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA. Rwanda-Zambia HIV Research Group: Zambia-Emory HIV Research Project, Lusaka, Zambia. Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA 30322, USA. carlson@microsoft.com ehunte4@emory.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25013080" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Consensus Sequence ; DNA Mutational Analysis ; Disease Transmission, Infectious/statistics & numerical data ; Female ; HIV Infections/*transmission ; HIV-1/*genetics ; *Heterosexuality ; High-Throughput Nucleotide Sequencing ; Human Immunodeficiency Virus Proteins/genetics ; Humans ; Male ; Models, Statistical ; Molecular Sequence Data ; Point Mutation ; Risk Factors ; *Selection, Genetic ; Viral Load
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  • 85
    Publication Date: 2014-11-15
    Description: Cellular memory is crucial to many natural biological processes and sophisticated synthetic biology applications. Existing cellular memories rely on epigenetic switches or recombinases, which are limited in scalability and recording capacity. In this work, we use the DNA of living cell populations as genomic "tape recorders" for the analog and distributed recording of long-term event histories. We describe a platform for generating single-stranded DNA (ssDNA) in vivo in response to arbitrary transcriptional signals. When coexpressed with a recombinase, these intracellularly expressed ssDNAs target specific genomic DNA addresses, resulting in precise mutations that accumulate in cell populations as a function of the magnitude and duration of the inputs. This platform could enable long-term cellular recorders for environmental and biomedical applications, biological state machines, and enhanced genome engineering strategies.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4266475/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4266475/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Farzadfard, Fahim -- Lu, Timothy K -- 1DP2OD008435/OD/NIH HHS/ -- 1P50GM098792/GM/NIGMS NIH HHS/ -- DP2 OD008435/OD/NIH HHS/ -- P50 GM098792/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2014 Nov 14;346(6211):1256272. doi: 10.1126/science.1256272.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Synthetic Biology Group, Research Laboratory of Electronics, Department of Electrical Engineering and Computer Science and Department of Biological Engineering, Massachusetts Institute of Technology (MIT), 77 Massachusetts Avenue, Cambridge, MA 02139, USA. MIT Synthetic Biology Center, 500 Technology Square, Cambridge, MA 02139, USA. MIT Microbiology Program, 77 Massachusetts Avenue, Cambridge, MA 02139, USA. ; Synthetic Biology Group, Research Laboratory of Electronics, Department of Electrical Engineering and Computer Science and Department of Biological Engineering, Massachusetts Institute of Technology (MIT), 77 Massachusetts Avenue, Cambridge, MA 02139, USA. MIT Synthetic Biology Center, 500 Technology Square, Cambridge, MA 02139, USA. MIT Microbiology Program, 77 Massachusetts Avenue, Cambridge, MA 02139, USA. timlu@mit.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25395541" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *Bioengineering ; Cells ; DNA, Single-Stranded/*genetics ; Escherichia coli/genetics ; *Genetic Code ; Genomics/methods ; Information Storage and Retrieval/*methods ; Memory ; Molecular Sequence Data ; Synthetic Biology ; *Tape Recording ; Transcription, Genetic ; *Writing
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  • 86
    Publication Date: 2014-11-22
    Description: Chromosome segregation depends on sister chromatid cohesion mediated by cohesin. The cohesin subunits Smc1, Smc3, and Scc1 form tripartite rings that are thought to open at distinct sites to allow entry and exit of DNA. However, direct evidence for the existence of open forms of cohesin is lacking. We found that cohesin's proposed DNA exit gate is formed by interactions between Scc1 and the coiled-coil region of Smc3. Mutation of this interface abolished cohesin's ability to stably associate with chromatin and to mediate cohesion. Electron microscopy revealed that weakening of the Smc3-Scc1 interface resulted in opening of cohesin rings, as did proteolytic cleavage of Scc1. These open forms may resemble intermediate states of cohesin normally generated by the release factor Wapl and the protease separase, respectively.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huis in 't Veld, Pim J -- Herzog, Franz -- Ladurner, Rene -- Davidson, Iain F -- Piric, Sabina -- Kreidl, Emanuel -- Bhaskara, Venugopal -- Aebersold, Ruedi -- Peters, Jan-Michael -- New York, N.Y. -- Science. 2014 Nov 21;346(6212):968-72. doi: 10.1126/science.1256904.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Research Institute of Molecular Pathology (IMP), Vienna Biocenter (VBC), 1030 Vienna, Austria. ; Department of Biology, Institute of Molecular Systems Biology, Eidgenossische Technische Hochschule (ETH) Zurich, 8093 Zurich, Switzerland. Department of Biochemistry, Gene Center, Ludwig-Maximilian University, 81377 Munich, Germany. ; Department of Biology, Institute of Molecular Systems Biology, Eidgenossische Technische Hochschule (ETH) Zurich, 8093 Zurich, Switzerland. ; Research Institute of Molecular Pathology (IMP), Vienna Biocenter (VBC), 1030 Vienna, Austria. peters@imp.ac.at.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25414306" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Carrier Proteins/genetics/metabolism ; Cell Cycle Proteins/chemistry/genetics/*metabolism ; Chondroitin Sulfate Proteoglycans/chemistry/genetics/*metabolism ; Chromatin/metabolism ; Chromosomal Proteins, Non-Histone/chemistry/genetics/*metabolism ; *Chromosome Segregation ; DNA/*metabolism ; DNA Replication ; Humans ; Mass Spectrometry ; Microscopy, Electron ; Molecular Sequence Data ; Nuclear Proteins/chemistry/genetics/*metabolism ; Phosphoproteins/chemistry/genetics/*metabolism ; Protein Multimerization ; Protein Structure, Tertiary ; Proto-Oncogene Proteins/genetics/metabolism ; Separase/metabolism
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  • 87
    Publication Date: 2014-05-31
    Description: Phosphatidylinositol 4-kinases (PI4Ks) and small guanosine triphosphatases (GTPases) are essential for processes that require expansion and remodeling of phosphatidylinositol 4-phosphate (PI4P)-containing membranes, including cytokinesis, intracellular development of malarial pathogens, and replication of a wide range of RNA viruses. However, the structural basis for coordination of PI4K, GTPases, and their effectors is unknown. Here, we describe structures of PI4Kbeta (PI4KIIIbeta) bound to the small GTPase Rab11a without and with the Rab11 effector protein FIP3. The Rab11-PI4KIIIbeta interface is distinct compared with known structures of Rab complexes and does not involve switch regions used by GTPase effectors. Our data provide a mechanism for how PI4KIIIbeta coordinates Rab11 and its effectors on PI4P-enriched membranes and also provide strategies for the design of specific inhibitors that could potentially target plasmodial PI4KIIIbeta to combat malaria.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4046302/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4046302/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Burke, John E -- Inglis, Alison J -- Perisic, Olga -- Masson, Glenn R -- McLaughlin, Stephen H -- Rutaganira, Florentine -- Shokat, Kevan M -- Williams, Roger L -- MC_U105184308/Medical Research Council/United Kingdom -- PG/11/109/29247/British Heart Foundation/United Kingdom -- PG11/109/29247/British Heart Foundation/United Kingdom -- R01AI099245/AI/NIAID NIH HHS/ -- T32 GM064337/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2014 May 30;344(6187):1035-8. doi: 10.1126/science.1253397.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council (MRC) Laboratory of Molecular Biology, Cambridge CB2 0QH, UK. jeburke@uvic.ca rlw@mrc-lmb.cam.ac.uk. ; Medical Research Council (MRC) Laboratory of Molecular Biology, Cambridge CB2 0QH, UK. ; Howard Hughes Medical Institute and Department of Cellular and Molecular Pharmacology, University of California, San Francisco (UCSF), San Francisco, CA 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24876499" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antimalarials/chemistry/pharmacology ; Binding Sites ; Cell Line ; Crystallography, X-Ray ; Drug Design ; Humans ; I-kappa B Kinase/*chemistry ; Molecular Sequence Data ; Mutation ; Phosphotransferases (Alcohol Group Acceptor)/*chemistry/genetics ; Plasmodium/drug effects/growth & development ; Protein Binding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; rab GTP-Binding Proteins/*chemistry
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  • 88
    Publication Date: 2014-03-07
    Description: GSK1265744 (GSK744) is an integrase strand-transfer inhibitor that has been formulated as a long-acting (LA) injectable suitable for monthly to quarterly clinical administration. GSK744 LA was administered at two time points 4 weeks apart beginning 1 week before virus administration, and macaques were challenged weekly for 8 weeks. GSK744 LA, at plasma concentrations achievable with quarterly injections in humans, protected all animals against repeated low-dose challenges. In a second experiment, macaques were given GSK744 LA 1 week before virus administration and challenged repeatedly until infection occurred. Protection decreased over time and correlated with the plasma drug levels. With a quarterly dosing schedule in humans, our results suggest that GSK744 LA could potentially decrease adherence problems associated with daily preexposure prophylaxis (PrEP).〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4308974/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4308974/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Andrews, Chasity D -- Spreen, William R -- Mohri, Hiroshi -- Moss, Lee -- Ford, Susan -- Gettie, Agegnehu -- Russell-Lodrigue, Kasi -- Bohm, Rudolf P -- Cheng-Mayer, Cecilia -- Hong, Zhi -- Markowitz, Martin -- Ho, David D -- 1DP1-DA033263/DA/NIDA NIH HHS/ -- 2P51-OD11104-52/OD/NIH HHS/ -- P51 OD011104/OD/NIH HHS/ -- R0-AI100724/AI/NIAID NIH HHS/ -- R01 AI100724/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2014 Mar 7;343(6175):1151-4. doi: 10.1126/science.1248707. Epub 2014 Mar 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Aaron Diamond AIDS Research Center, Rockefeller University, New York, NY 10016, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24594934" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Delayed-Action Preparations/administration & dosage/pharmacokinetics ; HIV Infections/*prevention & control ; HIV Integrase Inhibitors/*administration & dosage/blood/pharmacokinetics ; HIV-1/*drug effects ; Humans ; Macaca mulatta ; Molecular Sequence Data ; Pyridones/*administration & dosage ; Rectum/virology ; Simian Acquired Immunodeficiency Syndrome/*prevention & control ; Simian Immunodeficiency Virus/*drug effects
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  • 89
    Publication Date: 2014-01-11
    Description: It has been assumed that most, if not all, signals regulating early development have been identified. Contrary to this expectation, we identified 28 candidate signaling proteins expressed during zebrafish embryogenesis, including Toddler, a short, conserved, and secreted peptide. Both absence and overproduction of Toddler reduce the movement of mesendodermal cells during zebrafish gastrulation. Local and ubiquitous production of Toddler promote cell movement, suggesting that Toddler is neither an attractant nor a repellent but acts globally as a motogen. Toddler drives internalization of G protein-coupled APJ/Apelin receptors, and activation of APJ/Apelin signaling rescues toddler mutants. These results indicate that Toddler is an activator of APJ/Apelin receptor signaling, promotes gastrulation movements, and might be the first in a series of uncharacterized developmental signals.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4107353/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4107353/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pauli, Andrea -- Norris, Megan L -- Valen, Eivind -- Chew, Guo-Liang -- Gagnon, James A -- Zimmerman, Steven -- Mitchell, Andrew -- Ma, Jiao -- Dubrulle, Julien -- Reyon, Deepak -- Tsai, Shengdar Q -- Joung, J Keith -- Saghatelian, Alan -- Schier, Alexander F -- K99 HD076935/HD/NICHD NIH HHS/ -- R01 GM056211/GM/NIGMS NIH HHS/ -- R01 GM102491/GM/NIGMS NIH HHS/ -- R01 HG005111/HG/NHGRI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2014 Feb 14;343(6172):1248636. doi: 10.1126/science.1248636. Epub 2014 Jan 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24407481" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Cell Movement ; Chemokine CXCL12/metabolism ; Frameshift Mutation ; Gastrulation/genetics/*physiology ; Molecular Sequence Data ; Receptors, G-Protein-Coupled/genetics/*metabolism ; Signal Transduction ; Zebrafish/*embryology/genetics/metabolism ; Zebrafish Proteins/genetics/*metabolism
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  • 90
    Publication Date: 2014-03-29
    Description: Rapid advances in DNA synthesis techniques have made it possible to engineer viruses, biochemical pathways and assemble bacterial genomes. Here, we report the synthesis of a functional 272,871-base pair designer eukaryotic chromosome, synIII, which is based on the 316,617-base pair native Saccharomyces cerevisiae chromosome III. Changes to synIII include TAG/TAA stop-codon replacements, deletion of subtelomeric regions, introns, transfer RNAs, transposons, and silent mating loci as well as insertion of loxPsym sites to enable genome scrambling. SynIII is functional in S. cerevisiae. Scrambling of the chromosome in a heterozygous diploid reveals a large increase in a-mater derivatives resulting from loss of the MATalpha allele on synIII. The complete design and synthesis of synIII establishes S. cerevisiae as the basis for designer eukaryotic genome biology.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4033833/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4033833/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Annaluru, Narayana -- Muller, Heloise -- Mitchell, Leslie A -- Ramalingam, Sivaprakash -- Stracquadanio, Giovanni -- Richardson, Sarah M -- Dymond, Jessica S -- Kuang, Zheng -- Scheifele, Lisa Z -- Cooper, Eric M -- Cai, Yizhi -- Zeller, Karen -- Agmon, Neta -- Han, Jeffrey S -- Hadjithomas, Michalis -- Tullman, Jennifer -- Caravelli, Katrina -- Cirelli, Kimberly -- Guo, Zheyuan -- London, Viktoriya -- Yeluru, Apurva -- Murugan, Sindurathy -- Kandavelou, Karthikeyan -- Agier, Nicolas -- Fischer, Gilles -- Yang, Kun -- Martin, J Andrew -- Bilgel, Murat -- Bohutski, Pavlo -- Boulier, Kristin M -- Capaldo, Brian J -- Chang, Joy -- Charoen, Kristie -- Choi, Woo Jin -- Deng, Peter -- DiCarlo, James E -- Doong, Judy -- Dunn, Jessilyn -- Feinberg, Jason I -- Fernandez, Christopher -- Floria, Charlotte E -- Gladowski, David -- Hadidi, Pasha -- Ishizuka, Isabel -- Jabbari, Javaneh -- Lau, Calvin Y L -- Lee, Pablo A -- Li, Sean -- Lin, Denise -- Linder, Matthias E -- Ling, Jonathan -- Liu, Jaime -- Liu, Jonathan -- London, Mariya -- Ma, Henry -- Mao, Jessica -- McDade, Jessica E -- McMillan, Alexandra -- Moore, Aaron M -- Oh, Won Chan -- Ouyang, Yu -- Patel, Ruchi -- Paul, Marina -- Paulsen, Laura C -- Qiu, Judy -- Rhee, Alex -- Rubashkin, Matthew G -- Soh, Ina Y -- Sotuyo, Nathaniel E -- Srinivas, Venkatesh -- Suarez, Allison -- Wong, Andy -- Wong, Remus -- Xie, Wei Rose -- Xu, Yijie -- Yu, Allen T -- Koszul, Romain -- Bader, Joel S -- Boeke, Jef D -- Chandrasegaran, Srinivasan -- 092076/Wellcome Trust/United Kingdom -- GM077291/GM/NIGMS NIH HHS/ -- R01 GM077291/GM/NIGMS NIH HHS/ -- R01 GM090192/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2014 Apr 4;344(6179):55-8. doi: 10.1126/science.1249252. Epub 2014 Mar 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Environmental Health Sciences, Johns Hopkins University (JHU) School of Public Health, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24674868" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *Chromosomes, Fungal/genetics/metabolism ; DNA, Fungal/genetics ; Genes, Fungal ; Genetic Fitness ; Genome, Fungal ; Genomic Instability ; Introns ; Molecular Sequence Data ; Mutation ; Polymerase Chain Reaction ; RNA, Fungal/genetics ; RNA, Transfer/genetics ; Saccharomyces cerevisiae/cytology/*genetics/physiology ; Sequence Analysis, DNA ; Sequence Deletion ; Synthetic Biology/*methods ; Transformation, Genetic
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  • 91
    Publication Date: 2014-01-11
    Description: Many benthic marine animal populations are established and maintained by free-swimming larvae that recognize cues from surface-bound bacteria to settle and metamorphose. Larvae of the tubeworm Hydroides elegans, an important biofouling agent, require contact with surface-bound bacteria to undergo metamorphosis; however, the mechanisms that underpin this microbially mediated developmental transition have been enigmatic. Here, we show that a marine bacterium, Pseudoalteromonas luteoviolacea, produces arrays of phage tail-like structures that trigger metamorphosis of H. elegans. These arrays comprise about 100 contractile structures with outward-facing baseplates, linked by tail fibers and a dynamic hexagonal net. Not only do these arrays suggest a novel form of bacterium-animal interaction, they provide an entry point to understanding how marine biofilms can trigger animal development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shikuma, Nicholas J -- Pilhofer, Martin -- Weiss, Gregor L -- Hadfield, Michael G -- Jensen, Grant J -- Newman, Dianne K -- GM094800B/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2014 Jan 31;343(6170):529-33. doi: 10.1126/science.1246794. Epub 2014 Jan 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology, California Institute of Technology, Pasadena, CA 91125, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24407482" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aquatic Organisms/growth & development/microbiology ; Bacteriocins/genetics/*metabolism ; Bacteriophages/ultrastructure ; *Biofilms ; Genes, Bacterial/physiology ; Larva/growth & development/microbiology ; *Metamorphosis, Biological ; Molecular Sequence Data ; Open Reading Frames ; Polychaeta/*growth & development/*microbiology ; Pseudoalteromonas/genetics/*physiology/*virology ; Viral Tail Proteins/genetics/*physiology
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  • 92
    Publication Date: 2014-11-15
    Description: In certain human cancers, the expression of critical oncogenes is driven from large regulatory elements, called super-enhancers, that recruit much of the cell's transcriptional apparatus and are defined by extensive acetylation of histone H3 lysine 27 (H3K27ac). In a subset of T-cell acute lymphoblastic leukemia (T-ALL) cases, we found that heterozygous somatic mutations are acquired that introduce binding motifs for the MYB transcription factor in a precise noncoding site, which creates a super-enhancer upstream of the TAL1 oncogene. MYB binds to this new site and recruits its H3K27 acetylase-binding partner CBP, as well as core components of a major leukemogenic transcriptional complex that contains RUNX1, GATA-3, and TAL1 itself. Additionally, most endogenous super-enhancers found in T-ALL cells are occupied by MYB and CBP, which suggests a general role for MYB in super-enhancer initiation. Thus, this study identifies a genetic mechanism responsible for the generation of oncogenic super-enhancers in malignant cells.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4720521/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4720521/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mansour, Marc R -- Abraham, Brian J -- Anders, Lars -- Berezovskaya, Alla -- Gutierrez, Alejandro -- Durbin, Adam D -- Etchin, Julia -- Lawton, Lee -- Sallan, Stephen E -- Silverman, Lewis B -- Loh, Mignon L -- Hunger, Stephen P -- Sanda, Takaomi -- Young, Richard A -- Look, A Thomas -- 1R01CA176746-01/CA/NCI NIH HHS/ -- 5P01CA109901-08/CA/NCI NIH HHS/ -- 5P01CA68484/CA/NCI NIH HHS/ -- CA114766/CA/NCI NIH HHS/ -- CA120215/CA/NCI NIH HHS/ -- CA167124/CA/NCI NIH HHS/ -- CA29139/CA/NCI NIH HHS/ -- CA30969/CA/NCI NIH HHS/ -- CA98413/CA/NCI NIH HHS/ -- CA98543/CA/NCI NIH HHS/ -- P01 CA109901/CA/NCI NIH HHS/ -- P30 CA014051/CA/NCI NIH HHS/ -- R01 HG002668/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2014 Dec 12;346(6215):1373-7. doi: 10.1126/science.1259037. Epub 2014 Nov 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA. Department of Haematology, UCL Cancer Institute, University College London, London WC1E 6BT, UK. ; Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA. ; Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA. ; Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA. Division of Pediatric Hematology-Oncology, Boston Children's Hospital, MA 02115, USA. ; Department of Pediatrics, Benioff Children's Hospital, University of California San Francisco, CA 94143, USA. ; Pediatric Hematology/Oncology/BMT, University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, CO 80045, USA. ; Cancer Science Institute of Singapore, National University of Singapore, and Department of Medicine, Yong Loo Lin School of Medicine, 117599, Singapore. ; Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA. Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02142, USA. thomas_look@dfci.harvard.edu young@wi.mit.edu. ; Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA. Division of Pediatric Hematology-Oncology, Boston Children's Hospital, MA 02115, USA. thomas_look@dfci.harvard.edu young@wi.mit.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25394790" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylation ; Base Sequence ; Basic Helix-Loop-Helix Transcription Factors/*genetics ; Binding Sites ; Cell Line, Tumor ; *DNA, Intergenic ; *Enhancer Elements, Genetic ; *Gene Expression Regulation, Neoplastic ; Histones/metabolism ; Humans ; *INDEL Mutation ; Molecular Sequence Data ; *Mutation ; Oncogenes ; Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/*genetics ; Protein Interaction Domains and Motifs ; Proto-Oncogene Proteins/*genetics ; Proto-Oncogene Proteins c-myb/metabolism
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  • 93
    Publication Date: 2014-08-30
    Description: The bacterial oxidation of nitrite to nitrate is a key process of the biogeochemical nitrogen cycle. Nitrite-oxidizing bacteria are considered a highly specialized functional group, which depends on the supply of nitrite from other microorganisms and whose distribution strictly correlates with nitrification in the environment and in wastewater treatment plants. On the basis of genomics, physiological experiments, and single-cell analyses, we show that Nitrospira moscoviensis, which represents a widely distributed lineage of nitrite-oxidizing bacteria, has the genetic inventory to utilize hydrogen (H2) as an alternative energy source for aerobic respiration and grows on H2 without nitrite. CO2 fixation occurred with H2 as the sole electron donor. Our results demonstrate a chemolithoautotrophic lifestyle of nitrite-oxidizing bacteria outside the nitrogen cycle, suggesting greater ecological flexibility than previously assumed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koch, Hanna -- Galushko, Alexander -- Albertsen, Mads -- Schintlmeister, Arno -- Gruber-Dorninger, Christiane -- Lucker, Sebastian -- Pelletier, Eric -- Le Paslier, Denis -- Spieck, Eva -- Richter, Andreas -- Nielsen, Per H -- Wagner, Michael -- Daims, Holger -- New York, N.Y. -- Science. 2014 Aug 29;345(6200):1052-4. doi: 10.1126/science.1256985.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Ecosystem Science, Division of Microbial Ecology, University of Vienna, 1090 Vienna, Austria. ; Center for Microbial Communities, Department of Biotechnology, Chemistry and Environmental Engineering, Aalborg University, 9000 Aalborg, Denmark. ; Department of Microbiology and Ecosystem Science, Division of Microbial Ecology, University of Vienna, 1090 Vienna, Austria. Large Instrument Facility for Advanced Isotope Research, University of Vienna, 1090 Vienna, Austria. ; Commissariat a l'Energie Atomique, Direction des Sciences du Vivant, Institut de genomique, Genoscope, 91057 Evry, France. Centre National de la Recherche Scientifique, UMR8030, 91057 Evry, France. Universite d'Evry Val d'Essonne, 91057 Evry, France. ; Biozentrum Klein Flottbek, Microbiology and Biotechnology, University of Hamburg, 22609 Hamburg, Germany. ; Department of Microbiology and Ecosystem Science, Division of Terrestrial Ecosystem Research, University of Vienna, 1090 Vienna, Austria. ; Department of Microbiology and Ecosystem Science, Division of Microbial Ecology, University of Vienna, 1090 Vienna, Austria. daims@microbial-ecology.net.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25170152" target="_blank"〉PubMed〈/a〉
    Keywords: Aerobiosis ; Bacteria, Aerobic/genetics/*growth & development/*metabolism ; Chemoautotrophic Growth/genetics/*physiology ; Energy Metabolism ; Genetic Loci ; Hydrogen/*metabolism ; Hydrogenase/genetics ; Molecular Sequence Data ; Nitrates/metabolism ; Nitrification/genetics/physiology ; Nitrites/*metabolism ; *Nitrogen Cycle ; Oxidation-Reduction ; Sequence Analysis, DNA
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  • 94
    Publication Date: 2014-04-26
    Description: Extensive genomic diversity within coexisting members of a microbial species has been revealed through selected cultured isolates and metagenomic assemblies. Yet, the cell-by-cell genomic composition of wild uncultured populations of co-occurring cells is largely unknown. In this work, we applied large-scale single-cell genomics to study populations of the globally abundant marine cyanobacterium Prochlorococcus. We show that they are composed of hundreds of subpopulations with distinct "genomic backbones," each backbone consisting of a different set of core gene alleles linked to a small distinctive set of flexible genes. These subpopulations are estimated to have diverged at least a few million years ago, suggesting ancient, stable niche partitioning. Such a large set of coexisting subpopulations may be a general feature of free-living bacterial species with huge populations in highly mixed habitats.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kashtan, Nadav -- Roggensack, Sara E -- Rodrigue, Sebastien -- Thompson, Jessie W -- Biller, Steven J -- Coe, Allison -- Ding, Huiming -- Marttinen, Pekka -- Malmstrom, Rex R -- Stocker, Roman -- Follows, Michael J -- Stepanauskas, Ramunas -- Chisholm, Sallie W -- New York, N.Y. -- Science. 2014 Apr 25;344(6182):416-20. doi: 10.1126/science.1248575.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Civil and Environmental Engineering, Massachusetts Institute of Technology (MIT), 77 Massachusetts Avenue, Cambridge, MA 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24763590" target="_blank"〉PubMed〈/a〉
    Keywords: Atlantic Ocean ; Biological Evolution ; Ecosystem ; Genes, Bacterial ; *Genetic Variation ; *Genome, Bacterial ; Metagenomics ; Molecular Sequence Data ; Mutation ; Phylogeny ; Polymorphism, Single Nucleotide ; Prochlorococcus/classification/*genetics/*physiology ; Seasons ; Seawater/*microbiology ; Sequence Analysis, DNA ; Single-Cell Analysis
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  • 95
    Publication Date: 2014-02-01
    Description: Plant floral stem cells divide a limited number of times before they stop and terminally differentiate, but the mechanisms that control this timing remain unclear. The precise temporal induction of the Arabidopsis zinc finger repressor KNUCKLES (KNU) is essential for the coordinated growth and differentiation of floral stem cells. We identify an epigenetic mechanism in which the floral homeotic protein AGAMOUS (AG) induces KNU at ~2 days of delay. AG binding sites colocalize with a Polycomb response element in the KNU upstream region. AG binding to the KNU promoter causes the eviction of the Polycomb group proteins from the locus, leading to cell division-dependent induction. These analyses demonstrate that floral stem cells measure developmental timing by a division-dependent epigenetic timer triggered by Polycomb eviction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, Bo -- Looi, Liang-Sheng -- Guo, Siyi -- He, Zemiao -- Gan, Eng-Seng -- Huang, Jiangbo -- Xu, Yifeng -- Wee, Wan-Yi -- Ito, Toshiro -- New York, N.Y. -- Science. 2014 Jan 31;343(6170):1248559. doi: 10.1126/science.1248559.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore 117604, Republic of Singapore.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24482483" target="_blank"〉PubMed〈/a〉
    Keywords: AGAMOUS Protein, Arabidopsis/genetics/*metabolism ; Arabidopsis/cytology/genetics/*growth & development ; Arabidopsis Proteins/genetics/*metabolism ; Base Sequence ; Carrier Proteins/genetics/*metabolism ; Cell Division/genetics/*physiology ; Epigenesis, Genetic ; Flowers/cytology/genetics/*growth & development ; Gene Expression Regulation, Plant ; Meristem/*cytology ; Molecular Sequence Data ; Plants, Genetically Modified/cytology/growth & development ; Polycomb-Group Proteins/genetics/*metabolism ; Promoter Regions, Genetic ; Stem Cells/*cytology ; Time Factors ; Trans-Activators/genetics/metabolism
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  • 96
    Publication Date: 2014-04-20
    Description: Tight junctions are cell-cell adhesion structures in epithelial cell sheets that surround organ compartments in multicellular organisms and regulate the permeation of ions through the intercellular space. Claudins are the major constituents of tight junctions and form strands that mediate cell adhesion and function as paracellular barriers. We report the structure of mammalian claudin-15 at a resolution of 2.4 angstroms. The structure reveals a characteristic beta-sheet fold comprising two extracellular segments, which is anchored to a transmembrane four-helix bundle by a consensus motif. Our analyses suggest potential paracellular pathways with distinctive charges on the extracellular surface, providing insight into the molecular basis of ion homeostasis across tight junctions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Suzuki, Hiroshi -- Nishizawa, Tomohiro -- Tani, Kazutoshi -- Yamazaki, Yuji -- Tamura, Atsushi -- Ishitani, Ryuichiro -- Dohmae, Naoshi -- Tsukita, Sachiko -- Nureki, Osamu -- Fujiyoshi, Yoshinori -- New York, N.Y. -- Science. 2014 Apr 18;344(6181):304-7. doi: 10.1126/science.1248571.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cellular and Structural Physiology Institute, Nagoya University, Chikusa, Nagoya 464-8601, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24744376" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acid Sequence ; Animals ; Claudins/*chemistry ; Crystallography, X-Ray ; Mice ; Models, Molecular ; Molecular Sequence Data ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Protein Subunits/chemistry ; Static Electricity ; Tight Junctions/*chemistry/physiology
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  • 97
    Publication Date: 2014-08-16
    Description: Natural interconversions between distinct somatic cell types have been reported in species as diverse as jellyfish and mice. The efficiency and reproducibility of some reprogramming events represent unexploited avenues in which to probe mechanisms that ensure robust cell conversion. We report that a conserved H3K27me3/me2 demethylase, JMJD-3.1, and the H3K4 methyltransferase Set1 complex cooperate to ensure invariant transdifferentiation (Td) of postmitotic Caenorhabditis elegans hindgut cells into motor neurons. At single-cell resolution, robust conversion requires stepwise histone-modifying activities, functionally partitioned into discrete phases of Td through nuclear degradation of JMJD-3.1 and phase-specific interactions with transcription factors that have conserved roles in cell plasticity and terminal fate selection. Our results draw parallels between epigenetic mechanisms underlying robust Td in nature and efficient cell reprogramming in vitro.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zuryn, Steven -- Ahier, Arnaud -- Portoso, Manuela -- White, Esther Redhouse -- Morin, Marie-Charlotte -- Margueron, Raphael -- Jarriault, Sophie -- New York, N.Y. -- Science. 2014 Aug 15;345(6198):826-9. doi: 10.1126/science.1255885.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Development and Stem Cells, Institut de Genetique et de Biologie Moleculaire et Cellulaire, CNRS UMR 7104/INSERM U964, Universite de Strasbourg, 67404 Illkirch CU Strasbourg, France. ; Institut Curie, INSERM U934, CNRS UMR3215, 26, Rue d'Ulm, 75005 Paris, France. ; Department of Development and Stem Cells, Institut de Genetique et de Biologie Moleculaire et Cellulaire, CNRS UMR 7104/INSERM U964, Universite de Strasbourg, 67404 Illkirch CU Strasbourg, France. sophie@igbmc.fr.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25124442" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Animals, Genetically Modified ; Caenorhabditis elegans/*cytology/genetics ; Caenorhabditis elegans Proteins/chemistry/genetics/*metabolism ; Cell Dedifferentiation ; Cell Nucleus/metabolism/ultrastructure ; *Cell Transdifferentiation ; Digestive System/cytology ; Histone Demethylases/chemistry/genetics/*metabolism ; Histone-Lysine N-Methyltransferase/genetics/*metabolism ; Histones/*metabolism ; Lysine/metabolism ; Methylation ; Models, Biological ; Molecular Sequence Data ; Motor Neurons/*cytology ; Transcription Factors/metabolism
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  • 98
    Publication Date: 2014-12-17
    Description: Iron sequestration provides an innate defense, termed nutritional immunity, leading pathogens to scavenge iron from hosts. Although the molecular basis of this battle for iron is established, its potential as a force for evolution at host-pathogen interfaces is unknown. We show that the iron transport protein transferrin is engaged in ancient and ongoing evolutionary conflicts with TbpA, a transferrin surface receptor from bacteria. Single substitutions in transferrin at rapidly evolving sites reverse TbpA binding, providing a mechanism to counteract bacterial iron piracy among great apes. Furthermore, the C2 transferrin polymorphism in humans evades TbpA variants from Haemophilus influenzae, revealing a functional basis for standing genetic variation. These findings identify a central role for nutritional immunity in the persistent evolutionary conflicts between primates and bacterial pathogens.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4455941/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4455941/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barber, Matthew F -- Elde, Nels C -- 1F32GM108288/GM/NIGMS NIH HHS/ -- GM090042/GM/NIGMS NIH HHS/ -- R00 GM090042/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2014 Dec 12;346(6215):1362-6. doi: 10.1126/science.1259329.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Human Genetics, University of Utah School of Medicine, Salt Lake City, UT 84112, USA. ; Department of Human Genetics, University of Utah School of Medicine, Salt Lake City, UT 84112, USA. nelde@genetics.utah.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25504720" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Evolution, Molecular ; Haemophilus influenzae/*metabolism ; Haplorhini/*genetics/immunology/*metabolism ; Humans ; Immunity, Innate ; Models, Molecular ; Molecular Sequence Data ; Neisseria/*metabolism ; Neisseria gonorrhoeae/metabolism ; Neisseria meningitidis/metabolism ; Phylogeny ; Polymorphism, Genetic ; Protein Binding ; Selection, Genetic ; Transferrin/chemistry/*genetics/*metabolism ; Transferrin-Binding Protein A/chemistry/*genetics/*metabolism
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  • 99
    Publication Date: 2014-01-25
    Description: Plant cells are immobile; thus, plant growth and development depend on cell expansion rather than cell migration. The molecular mechanism by which the plasma membrane initiates changes in the cell expansion rate remains elusive. We found that a secreted peptide, RALF (rapid alkalinization factor), suppresses cell elongation of the primary root by activating the cell surface receptor FERONIA in Arabidopsis thaliana. A direct peptide-receptor interaction is supported by specific binding of RALF to FERONIA and reduced binding and insensitivity to RALF-induced growth inhibition in feronia mutants. Phosphoproteome measurements demonstrate that the RALF-FERONIA interaction causes phosphorylation of plasma membrane H(+)-adenosine triphosphatase 2 at Ser(899), mediating the inhibition of proton transport. The results reveal a molecular mechanism for RALF-induced extracellular alkalinization and a signaling pathway that regulates cell expansion.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4672726/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4672726/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Haruta, Miyoshi -- Sabat, Grzegorz -- Stecker, Kelly -- Minkoff, Benjamin B -- Sussman, Michael R -- 5T32HG002760/HG/NHGRI NIH HHS/ -- U54 GM074901/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2014 Jan 24;343(6169):408-11. doi: 10.1126/science.1244454.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biotechnology Center, University of Wisconsin, Madison, WI 53706, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24458638" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/*cytology/metabolism ; Arabidopsis Proteins/*agonists/genetics/*metabolism ; *Cell Enlargement ; Cell Membrane/*enzymology ; Molecular Sequence Data ; Peptide Hormones/genetics/*metabolism ; Phosphorylation ; Phosphotransferases/genetics/metabolism ; Plant Cells/metabolism/physiology ; Plant Roots/cytology/metabolism ; Protein Binding ; Proteome/metabolism ; Proton-Translocating ATPases/*metabolism ; Serine/metabolism
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  • 100
    Publication Date: 2014-06-21
    Description: Primate lentiviruses exhibit narrow host tropism, reducing the occurrence of zoonoses but also impairing the development of optimal animal models of AIDS. To delineate the factors limiting cross-species HIV-1 transmission, we passaged a modified HIV-1 in pigtailed macaques that were transiently depleted of CD8(+) cells during acute infection. During adaptation over four passages in macaques, HIV-1 acquired the ability to antagonize the macaque restriction factor tetherin, replicated at progressively higher levels, and ultimately caused marked CD4(+) T cell depletion and AIDS-defining conditions. Transient treatment with an antibody to CD8 during acute HIV-1 infection caused rapid progression to AIDS, whereas untreated animals exhibited an elite controller phenotype. Thus, an adapted HIV-1 can cause AIDS in macaques, and stark differences in outcome can be determined by immunological perturbations during early infection.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4266393/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4266393/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hatziioannou, Theodora -- Del Prete, Gregory Q -- Keele, Brandon F -- Estes, Jacob D -- McNatt, Matthew W -- Bitzegeio, Julia -- Raymond, Alice -- Rodriguez, Anthony -- Schmidt, Fabian -- Mac Trubey, C -- Smedley, Jeremy -- Piatak, Michael Jr -- KewalRamani, Vineet N -- Lifson, Jeffrey D -- Bieniasz, Paul D -- HHSN261200800001E/PHS HHS/ -- R01 AI050111/AI/NIAID NIH HHS/ -- R01 AI078788/AI/NIAID NIH HHS/ -- R01AI078788/AI/NIAID NIH HHS/ -- R01AI50111/AI/NIAID NIH HHS/ -- R37 AI064003/AI/NIAID NIH HHS/ -- R37AI64003/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2014 Jun 20;344(6190):1401-5. doi: 10.1126/science.1250761.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Aaron Diamond AIDS Research Center, 455 First Avenue, New York, NY 10016, USA. thatziio@adarc.org vineet.kewalramani@nih.gov lifsonj@mail.nih.gov pbienias@adarc.org. ; AIDS and Cancer Virus Program, Leidos Biomedical Research, Frederick National Laboratory, Frederick, MD 21702, USA. ; Aaron Diamond AIDS Research Center, 455 First Avenue, New York, NY 10016, USA. Laboratory of Retrovirology, The Rockefeller University, 455 First Avenue, New York, NY 10016, USA. ; Aaron Diamond AIDS Research Center, 455 First Avenue, New York, NY 10016, USA. ; Laboratory Animal Sciences Program, Leidos Biomedical Research, Frederick National Laboratory, Frederick, MD 21702, USA. ; HIV Drug Resistance Program, National Cancer Institute, Frederick, MD 21702, USA. thatziio@adarc.org vineet.kewalramani@nih.gov lifsonj@mail.nih.gov pbienias@adarc.org. ; AIDS and Cancer Virus Program, Leidos Biomedical Research, Frederick National Laboratory, Frederick, MD 21702, USA. thatziio@adarc.org vineet.kewalramani@nih.gov lifsonj@mail.nih.gov pbienias@adarc.org. ; Aaron Diamond AIDS Research Center, 455 First Avenue, New York, NY 10016, USA. Laboratory of Retrovirology, The Rockefeller University, 455 First Avenue, New York, NY 10016, USA. Howard Hughes Medical Institute, 455 First Avenue, New York, NY 10016, USA. thatziio@adarc.org vineet.kewalramani@nih.gov lifsonj@mail.nih.gov pbienias@adarc.org.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24948736" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/immunology/transmission/*virology ; Amino Acid Sequence ; Animals ; Antigens, CD8/immunology ; CD4-Positive T-Lymphocytes/immunology ; *Disease Models, Animal ; HIV-1/genetics/*physiology ; Host-Pathogen Interactions/*immunology ; Human Immunodeficiency Virus Proteins/chemistry/genetics/metabolism ; Lymphocyte Depletion ; Macaca nemestrina/immunology/*virology ; Molecular Sequence Data ; Protein Structure, Tertiary ; Viral Regulatory and Accessory Proteins/chemistry/genetics/metabolism ; Virus Replication
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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