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  • Molecular Sequence Data  (1,294)
  • Rats  (427)
  • Inorganic Chemistry
  • American Association for the Advancement of Science (AAAS)  (1,522)
  • Nature Publishing Group (NPG)  (92)
  • 2015-2019  (190)
  • 1990-1994  (1,424)
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  • 1
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2017-02-10
    Description: Author: Jake Yeston
    Keywords: Inorganic Chemistry
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    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2017-01-27
    Description: Author: Jake Yeston
    Keywords: Inorganic Chemistry
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  • 3
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2017-01-27
    Description: Polynitrogens have the potential for ultrahigh-performing explosives or propellants because singly or doubly bonded polynitrogens can decompose to triply bonded dinitrogen (N2) with an extraordinarily large energy release. The large energy content and relatively low activation energy toward decomposition makes the synthesis of a stable polynitrogen allotrope an extraordinary challenge. Many elements exist in different forms (allotropes)—for example, carbon can exist as graphite, diamond, buckyballs, or graphene. However, no stable neutral allotropes are known for nitrogen, and only two stable homonuclear polynitrogen ions had been isolated until now—namely, the N3− anion (1) and the N5+ cation (2). On page 374 of this issue, Zhang et al. (3) report the synthesis and characterization of the first stable salt of the cyclo-N5− anion, only the third stable homonuclear polynitrogen ion ever isolated. Author: Karl O. Christe
    Keywords: Inorganic Chemistry
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  • 4
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2016-01-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Underwood, Emily -- New York, N.Y. -- Science. 2015 Dec 4;350(6265):1188-90. doi: 10.1126/science.350.6265.1188.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26785475" target="_blank"〉PubMed〈/a〉
    Keywords: Aging/blood/genetics/*physiology ; Animals ; Biological Clocks/genetics/*physiology ; Biomarkers/blood/metabolism ; DNA/genetics ; DNA Methylation ; Epigenesis, Genetic ; Humans ; Mice ; Rats ; Telomere Homeostasis
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  • 5
    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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  • 6
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2016-01-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Servick, Kelly -- New York, N.Y. -- Science. 2016 Jan 1;351(6268):15. doi: 10.1126/science.351.6268.15.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26721984" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; California ; Cell Differentiation ; Clinical Trials as Topic ; Drug Industry ; Embryonic Stem Cells/cytology/*transplantation ; Financing, Organized ; Humans ; Photoreceptor Cells/physiology ; Rats ; Regenerative Medicine/*economics/*trends ; Retina/cytology/physiology ; Stem Cell Research/*economics
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  • 7
    Publication Date: 2016-02-26
    Description: Voltage-gated CaV1.2 channels (L-type calcium channel alpha1C subunits) are critical mediators of transcription-dependent neural plasticity. Whether these channels signal via the influx of calcium ion (Ca(2+)), voltage-dependent conformational change (VDeltaC), or a combination of the two has thus far been equivocal. We fused CaV1.2 to a ligand-gated Ca(2+)-permeable channel, enabling independent control of localized Ca(2+) and VDeltaC signals. This revealed an unexpected dual requirement: Ca(2+) must first mobilize actin-bound Ca(2+)/calmodulin-dependent protein kinase II, freeing it for subsequent VDeltaC-mediated accumulation. Neither signal alone sufficed to activate transcription. Signal order was crucial: Efficiency peaked when Ca(2+) preceded VDeltaC by 10 to 20 seconds. CaV1.2 VDeltaC synergistically augmented signaling by N-methyl-d-aspartate receptors. Furthermore, VDeltaC mistuning correlated with autistic symptoms in Timothy syndrome. Thus, nonionic VDeltaC signaling is vital to the function of CaV1.2 in synaptic and neuropsychiatric processes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Boxing -- Tadross, Michael R -- Tsien, Richard W -- New York, N.Y. -- Science. 2016 Feb 19;351(6275):863-7. doi: 10.1126/science.aad3647.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience and Physiology and New York University Neuroscience Institute, New York, NY 10016, USA. ; Department of Molecular and Cellular Physiology, Beckman Center, School of Medicine, Stanford University, Stanford, CA 94305, USA. Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA 20147, USA. tadrossm@janelia.hhmi.org. ; Department of Neuroscience and Physiology and New York University Neuroscience Institute, New York, NY 10016, USA. Department of Molecular and Cellular Physiology, Beckman Center, School of Medicine, Stanford University, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26912895" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autistic Disorder/genetics/metabolism ; Calcium Channel Blockers/pharmacology ; Calcium Channels, L-Type/chemistry/*metabolism ; *Calcium Signaling ; Calcium-Calmodulin-Dependent Protein Kinase Type 2/*metabolism ; Cells, Cultured ; Cyclic AMP Response Element-Binding Protein/metabolism ; *Gene Expression Regulation ; HEK293 Cells ; Hippocampus/cytology ; Humans ; Long QT Syndrome/genetics/metabolism ; Neuronal Plasticity/*genetics ; Neurons/drug effects/*metabolism ; Nimodipine/pharmacology ; Protein Conformation/drug effects ; Rats ; Rats, Sprague-Dawley ; Receptors, N-Methyl-D-Aspartate/metabolism ; Synapses/metabolism ; Syndactyly/genetics/metabolism
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  • 8
    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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  • 9
    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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  • 10
    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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  • 11
    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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  • 12
    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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  • 13
    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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  • 14
    Publication Date: 2016-01-02
    Description: Motivation for reward drives adaptive behaviors, whereas impairment of reward perception and experience (anhedonia) can contribute to psychiatric diseases, including depression and schizophrenia. We sought to test the hypothesis that the medial prefrontal cortex (mPFC) controls interactions among specific subcortical regions that govern hedonic responses. By using optogenetic functional magnetic resonance imaging to locally manipulate but globally visualize neural activity in rats, we found that dopamine neuron stimulation drives striatal activity, whereas locally increased mPFC excitability reduces this striatal response and inhibits the behavioral drive for dopaminergic stimulation. This chronic mPFC overactivity also stably suppresses natural reward-motivated behaviors and induces specific new brainwide functional interactions, which predict the degree of anhedonia in individuals. These findings describe a mechanism by which mPFC modulates expression of reward-seeking behavior, by regulating the dynamical interactions between specific distant subcortical regions.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4772156/" 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/PMC4772156/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ferenczi, Emily A -- Zalocusky, Kelly A -- Liston, Conor -- Grosenick, Logan -- Warden, Melissa R -- Amatya, Debha -- Katovich, Kiefer -- Mehta, Hershel -- Patenaude, Brian -- Ramakrishnan, Charu -- Kalanithi, Paul -- Etkin, Amit -- Knutson, Brian -- Glover, Gary H -- Deisseroth, Karl -- 1F31MH105151_01/MH/NIMH NIH HHS/ -- P41 EB015891/EB/NIBIB NIH HHS/ -- R00 MH097822/MH/NIMH NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2016 Jan 1;351(6268):aac9698. doi: 10.1126/science.aac9698.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bioengineering, Stanford University, Stanford, CA 94305, USA. Neurosciences Program, Stanford University, Stanford, CA 94305, USA. ; Brain Mind Research Institute, Weill Cornell Medical College, New York, NY 10065, USA. ; Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA. ; Department of Bioengineering, Stanford University, Stanford, CA 94305, USA. ; Department of Psychology, Stanford University, Stanford, CA 94305, USA. ; Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA 94305, USA. ; Department of Neurosurgery, Stanford University, Stanford, CA 94305, USA. ; Department of Radiology, Stanford University, Stanford, CA, 94305, USA. ; Department of Bioengineering, Stanford University, Stanford, CA 94305, USA. Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA. Howard Hughes Medical Institute, Stanford University, Stanford, CA, 94305, USA. deissero@stanford.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26722001" target="_blank"〉PubMed〈/a〉
    Keywords: Anhedonia/*physiology ; Animals ; Brain Mapping ; Corpus Striatum/cytology/drug effects/*physiology ; Depressive Disorder/physiopathology ; Dopamine/pharmacology ; Dopaminergic Neurons/drug effects/*physiology ; Female ; Magnetic Resonance Imaging ; Male ; Mesencephalon/cytology/drug effects/physiology ; *Motivation ; Nerve Net/physiology ; Oxygen/blood ; Prefrontal Cortex/cytology/drug effects/*physiology ; Rats ; Rats, Inbred LEC ; Rats, Sprague-Dawley ; *Reward ; Schizophrenia/physiopathology
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  • 15
    Publication Date: 2016-03-19
    Description: Steroids regulate cell proliferation, tissue development, and cell signaling via two pathways: a nuclear receptor mechanism and genome-independent signaling. Sperm activation, egg maturation, and steroid-induced anesthesia are executed via the latter pathway, the key components of which remain unknown. Here, we present characterization of the human sperm progesterone receptor that is conveyed by the orphan enzyme alpha/beta hydrolase domain-containing protein 2 (ABHD2). We show that ABHD2 is highly expressed in spermatozoa, binds progesterone, and acts as a progesterone-dependent lipid hydrolase by depleting the endocannabinoid 2-arachidonoylglycerol (2AG) from plasma membrane. The 2AG inhibits the sperm calcium channel (CatSper), and its removal leads to calcium influx via CatSper and ensures sperm activation. This study reveals that progesterone-activated endocannabinoid depletion by ABHD2 is a general mechanism by which progesterone exerts its genome-independent action and primes sperm for fertilization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Melissa R -- Mannowetz, Nadja -- Iavarone, Anthony T -- Safavi, Rojin -- Gracheva, Elena O -- Smith, James F -- Hill, Rose Z -- Bautista, Diana M -- Kirichok, Yuriy -- Lishko, Polina V -- 1S10OD020062-01/OD/NIH HHS/ -- R01 AR059385/AR/NIAMS NIH HHS/ -- R01AR059385/AR/NIAMS NIH HHS/ -- R01GM111802/GM/NIGMS NIH HHS/ -- R01HD068914/HD/NICHD NIH HHS/ -- R21HD081403/HD/NICHD NIH HHS/ -- S10RR025622/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2016 Apr 29;352(6285):555-9. doi: 10.1126/science.aad6887. Epub 2016 Mar 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA. ; QB3/Chemistry Mass Spectrometry Facility, University of California, Berkeley, CA 94720, USA. ; Department of Cellular and Molecular Physiology; Department of Neuroscience, Program in Cellular Neuroscience, Neurodegeneration, and Repair (CNNR), Yale School of Medicine, Yale University, New Haven, CT 06536, USA. ; Department of Urology, University of California, San Francisco, CA 94143, USA. ; Department of Physiology, University of California, San Francisco, CA 94158, USA. ; Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA. lishko@berkeley.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26989199" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Arachidonic Acids/*deficiency ; Calcium/metabolism ; Calcium Channels/metabolism ; Calcium Signaling ; Cell Membrane/metabolism ; Endocannabinoids/*deficiency ; Fertilization ; Glycerides/*deficiency ; Humans ; Hydrolases/genetics/*metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Progesterone/*metabolism/pharmacology ; Rats ; Rats, Wistar ; Receptors, Progesterone/genetics/*metabolism ; Sperm Motility/drug effects/*physiology ; Spermatozoa/drug effects/metabolism/*physiology ; Young Adult
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  • 16
    Publication Date: 2016-03-26
    Description: Cell assembly sequences during learning are "replayed" during hippocampal ripples and contribute to the consolidation of episodic memories. However, neuronal sequences may also reflect preexisting dynamics. We report that sequences of place-cell firing in a novel environment are formed from a combination of the contributions of a rigid, predominantly fast-firing subset of pyramidal neurons with low spatial specificity and limited change across sleep-experience-sleep and a slow-firing plastic subset. Slow-firing cells, rather than fast-firing cells, gained high place specificity during exploration, elevated their association with ripples, and showed increased bursting and temporal coactivation during postexperience sleep. Thus, slow- and fast-firing neurons, although forming a continuous distribution, have different coding and plastic properties.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grosmark, Andres D -- Buzsaki, Gyorgy -- MH102840/MH/NIMH NIH HHS/ -- MH54671/MH/NIMH NIH HHS/ -- NS075015/NS/NINDS NIH HHS/ -- R01 MH107396/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2016 Mar 25;351(6280):1440-3. doi: 10.1126/science.aad1935.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, Columbia University Medical Center, New York, NY 10019, USA. The Neuroscience Institute, School of Medicine, New York University, New York, NY 10016, USA. ; The Neuroscience Institute, School of Medicine, New York University, New York, NY 10016, USA. Center for Neural Science, New York University, New York, NY 10016, USA. gyorgy.buzsaki@nyumc.org.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27013730" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Hippocampus/cytology/*physiopathology ; Learning/*physiology ; Male ; Maze Learning ; Neuronal Plasticity ; Pyramidal Cells/*physiology ; Rats ; Rats, Inbred LEC ; Sleep/physiology
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  • 17
    Publication Date: 2016-03-19
    Description: Expansions of a hexanucleotide repeat (GGGGCC) in the noncoding region of the C9orf72 gene are the most common genetic cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia. Decreased expression of C9orf72 is seen in expansion carriers, suggesting that loss of function may play a role in disease. We found that two independent mouse lines lacking the C9orf72 ortholog (3110043O21Rik) in all tissues developed normally and aged without motor neuron disease. Instead, C9orf72 null mice developed progressive splenomegaly and lymphadenopathy with accumulation of engorged macrophage-like cells. C9orf72 expression was highest in myeloid cells, and the loss of C9orf72 led to lysosomal accumulation and altered immune responses in macrophages and microglia, with age-related neuroinflammation similar to C9orf72 ALS but not sporadic ALS human patient tissue. Thus, C9orf72 is required for the normal function of myeloid cells, and altered microglial function may contribute to neurodegeneration in C9orf72 expansion carriers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Rourke, J G -- Bogdanik, L -- Yanez, A -- Lall, D -- Wolf, A J -- Muhammad, A K M G -- Ho, R -- Carmona, S -- Vit, J P -- Zarrow, J -- Kim, K J -- Bell, S -- Harms, M B -- Miller, T M -- Dangler, C A -- Underhill, D M -- Goodridge, H S -- Lutz, C M -- Baloh, R H -- GM085796/GM/NIGMS NIH HHS/ -- NS069669/NS/NINDS NIH HHS/ -- NS078398/NS/NINDS NIH HHS/ -- NS087351/NS/NINDS NIH HHS/ -- UL1TR000124/TR/NCATS NIH HHS/ -- New York, N.Y. -- Science. 2016 Mar 18;351(6279):1324-9. doi: 10.1126/science.aaf1064.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, 8700 Beverly Boulevard, Los Angeles, CA 90048, USA. ; The Jackson Laboratory, Bar Harbor, ME, USA. ; Division of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Boulevard, Los Angeles, CA 90048, USA. ; Department of Neurology, Washington University School of Medicine, 660 South Euclid Avenue, St. Louis, MO 63110, USA. ; Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, 8700 Beverly Boulevard, Los Angeles, CA 90048, USA. Department of Neurology, Cedars-Sinai Medical Center, 8700 Beverly Boulevard, Los Angeles, CA 90048, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26989253" target="_blank"〉PubMed〈/a〉
    Keywords: Aging/immunology ; Amyotrophic Lateral Sclerosis/genetics/*immunology ; Animals ; Frontotemporal Dementia/genetics/*immunology ; Gene Knockdown Techniques ; Guanine Nucleotide Exchange Factors/genetics/*physiology ; Heterozygote ; Humans ; Lymphatic Diseases/genetics/immunology ; Macrophages/*immunology ; Mice ; Mice, Knockout ; Microglia/*immunology ; Myeloid Cells/*immunology ; Proteins/genetics/*physiology ; Rats ; Splenomegaly/genetics/immunology
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  • 18
    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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  • 19
    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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  • 20
    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
    Print ISSN: 0036-8075
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  • 21
    Publication Date: 2016-04-23
    Description: The microtubule (MT) cytoskeleton can transmit mechanical signals and resist compression in contracting cardiomyocytes. How MTs perform these roles remains unclear because of difficulties in observing MTs during the rapid contractile cycle. Here, we used high spatial and temporal resolution imaging to characterize MT behavior in beating mouse myocytes. MTs deformed under contractile load into sinusoidal buckles, a behavior dependent on posttranslational "detyrosination" of alpha-tubulin. Detyrosinated MTs associated with desmin at force-generating sarcomeres. When detyrosination was reduced, MTs uncoupled from sarcomeres and buckled less during contraction, which allowed sarcomeres to shorten and stretch with less resistance. Conversely, increased detyrosination promoted MT buckling, stiffened the myocyte, and correlated with impaired function in cardiomyopathy. Thus, detyrosinated MTs represent tunable, compression-resistant elements that may impair cardiac function in disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Robison, Patrick -- Caporizzo, Matthew A -- Ahmadzadeh, Hossein -- Bogush, Alexey I -- Chen, Christina Yingxian -- Margulies, Kenneth B -- Shenoy, Vivek B -- Prosser, Benjamin L -- HL089847/HL/NHLBI NIH HHS/ -- HL105993/HL/NHLBI NIH HHS/ -- R00-HL114879/HL/NHLBI NIH HHS/ -- R01EB017753/EB/NIBIB NIH HHS/ -- T32AR053461-09/AR/NIAMS NIH HHS/ -- T32HL007954/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2016 Apr 22;352(6284):aaf0659. doi: 10.1126/science.aaf0659.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, Pennsylvania Muscle Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA. ; Department of Materials Science and Engineering, University of Pennsylvania School of Engineering and Applied Science, Philadelphia, PA 19104, USA. ; Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA. ; Department of Physiology, Pennsylvania Muscle Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA. bpros@mail.med.upenn.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27102488" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Desmin/metabolism ; Elasticity ; Heart Failure/metabolism/physiopathology ; Humans ; Male ; Mice ; Microtubules/*metabolism ; Models, Biological ; *Myocardial Contraction ; Myocytes, Cardiac/metabolism/*physiology ; Peptide Synthases/genetics/metabolism ; *Protein Processing, Post-Translational ; RNA, Small Interfering/genetics ; Rats ; Rats, Sprague-Dawley ; Sarcomeres/metabolism ; Tubulin/*metabolism ; Tyrosine/*metabolism
    Print ISSN: 0036-8075
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  • 22
    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
    Print ISSN: 0036-8075
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  • 23
    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
    Print ISSN: 0036-8075
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  • 24
    Publication Date: 2016-01-28
    Description: Seagrasses colonized the sea on at least three independent occasions to form the basis of one of the most productive and widespread coastal ecosystems on the planet. Here we report the genome of Zostera marina (L.), the first, to our knowledge, marine angiosperm to be fully sequenced. This reveals unique insights into the genomic losses and gains involved in achieving the structural and physiological adaptations required for its marine lifestyle, arguably the most severe habitat shift ever accomplished by flowering plants. Key angiosperm innovations that were lost include the entire repertoire of stomatal genes, genes involved in the synthesis of terpenoids and ethylene signalling, and genes for ultraviolet protection and phytochromes for far-red sensing. Seagrasses have also regained functions enabling them to adjust to full salinity. Their cell walls contain all of the polysaccharides typical of land plants, but also contain polyanionic, low-methylated pectins and sulfated galactans, a feature shared with the cell walls of all macroalgae and that is important for ion homoeostasis, nutrient uptake and O2/CO2 exchange through leaf epidermal cells. The Z. marina genome resource will markedly advance a wide range of functional ecological studies from adaptation of marine ecosystems under climate warming, to unravelling the mechanisms of osmoregulation under high salinities that may further inform our understanding of the evolution of salt tolerance in crop plants.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Olsen, Jeanine L -- Rouze, Pierre -- Verhelst, Bram -- Lin, Yao-Cheng -- Bayer, Till -- Collen, Jonas -- Dattolo, Emanuela -- De Paoli, Emanuele -- Dittami, Simon -- Maumus, Florian -- Michel, Gurvan -- Kersting, Anna -- Lauritano, Chiara -- Lohaus, Rolf -- Topel, Mats -- Tonon, Thierry -- Vanneste, Kevin -- Amirebrahimi, Mojgan -- Brakel, Janina -- Bostrom, Christoffer -- Chovatia, Mansi -- Grimwood, Jane -- Jenkins, Jerry W -- Jueterbock, Alexander -- Mraz, Amy -- Stam, Wytze T -- Tice, Hope -- Bornberg-Bauer, Erich -- Green, Pamela J -- Pearson, Gareth A -- Procaccini, Gabriele -- Duarte, Carlos M -- Schmutz, Jeremy -- Reusch, Thorsten B H -- Van de Peer, Yves -- England -- Nature. 2016 Feb 18;530(7590):331-5. doi: 10.1038/nature16548. Epub 2016 Jan 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Groningen Institute of Evolutionary Life Sciences (GELIFES), University of Groningen, PO Box 11103, 9700 CC Groningen, The Netherlands. ; Department of Plant Systems Biology, VIB and Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 927, B-9052 Ghent, Belgium. ; GEOMAR Helmholtz Centre for Ocean Research-Kiel, Evolutionary Ecology, Dusternbrooker Weg 20, D-24105 Kiel, Germany. ; Sorbonne Universite, UPMC Univ Paris 06, CNRS, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, CS 90074, F-29688, Roscoff cedex, France. ; Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy. ; Dipartimento di Scienze Agrarie e Ambientali, University of Udine, Via delle Scienze 206, 33100 Udine, Italy. ; INRA, UR1164 URGI-Research Unit in Genomics-Info, INRA de Versailles-Grignon, Route de Saint-Cyr, Versailles 78026, France. ; Institute for Evolution and Biodiversity, Westfalische Wilhelms-University of Munster, Hufferstrasse 1, D-48149 Munster, Germany. ; Institute for Computer Science, Heinrich Heine University, D-40255 Duesseldorf, Germany. ; Department of Biological and Environmental Sciences, Bioinformatics Infrastructure for Life Sciences (BILS), University of Gothenburg, Medicinaregatan 18A, 40530 Gothenburg, Sweden. ; Department of Energy Joint Genome Institute, 2800 Mitchell Dr., #100, Walnut Creek, California 94598, USA. ; Environmental and Marine Biology, Faculty of Science and Engineering, Abo Akademi University, Artillerigatan 6, FI-20520 Turku/Abo, Finland. ; HudsonAlpha Institute for Biotechnology, 601 Genome Way NW, Huntsville, Alabama 35806, USA. ; Marine Ecology Group, Nord University, Postbox 1490, 8049 Bodo, Norway. ; Amplicon Express, 2345 NE Hopkins Ct., Pullman, Washington 99163, USA. ; School of Marine Science and Policy, Department of Plant and Soil Sciences, Delaware Biotechnology Institute, University of Delaware, 15-Innovation Way, Newark, Delaware 19711, USA. ; Marine Ecology and Evolution, Centre for Marine Sciences (CCMAR), University of Algarve, 8005-139 Faro, Portugal. ; King Abdullah University of Science and Technology (KAUST), Red Sea Research Center (RSRC), Thuwal 23955-6900, Saudi Arabia. ; University of Kiel, Faculty of Mathematics and Natural Sciences, Christian-Albrechts-Platz 4, 24118 Kiel, Germany. ; Genomics Research Institute, University of Pretoria, Hatfield Campus, Pretoria 0028, South Africa. ; Bioinformatics Institute Ghent, Ghent University, Ghent B-9000, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26814964" target="_blank"〉PubMed〈/a〉
    Keywords: Acclimatization/genetics ; Adaptation, Physiological/*genetics ; Cell Wall/chemistry ; Ethylenes/biosynthesis ; *Evolution, Molecular ; Gene Duplication ; Genes, Plant/genetics ; Genome, Plant/*genetics ; Metabolic Networks and Pathways ; Molecular Sequence Data ; Oceans and Seas ; Osmoregulation/genetics ; Phylogeny ; Plant Leaves/metabolism ; Plant Stomata/genetics ; Pollen/metabolism ; Salinity ; Salt-Tolerance/genetics ; *Seawater ; Seaweed/genetics ; Terpenes/metabolism ; Zosteraceae/*genetics
    Print ISSN: 0028-0836
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  • 25
    Publication Date: 2016-01-19
    Description: Many procedures in modern clinical medicine rely on the use of electronic implants in treating conditions that range from acute coronary events to traumatic injury. However, standard permanent electronic hardware acts as a nidus for infection: bacteria form biofilms along percutaneous wires, or seed haematogenously, with the potential to migrate within the body and to provoke immune-mediated pathological tissue reactions. The associated surgical retrieval procedures, meanwhile, subject patients to the distress associated with re-operation and expose them to additional complications. Here, we report materials, device architectures, integration strategies, and in vivo demonstrations in rats of implantable, multifunctional silicon sensors for the brain, for which all of the constituent materials naturally resorb via hydrolysis and/or metabolic action, eliminating the need for extraction. Continuous monitoring of intracranial pressure and temperature illustrates functionality essential to the treatment of traumatic brain injury; the measurement performance of our resorbable devices compares favourably with that of non-resorbable clinical standards. In our experiments, insulated percutaneous wires connect to an externally mounted, miniaturized wireless potentiostat for data transmission. In a separate set-up, we connect a sensor to an implanted (but only partially resorbable) data-communication system, proving the principle that there is no need for any percutaneous wiring. The devices can be adapted to sense fluid flow, motion, pH or thermal characteristics, in formats that are compatible with the body's abdomen and extremities, as well as the deep brain, suggesting that the sensors might meet many needs in clinical medicine.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kang, Seung-Kyun -- Murphy, Rory K J -- Hwang, Suk-Won -- Lee, Seung Min -- Harburg, Daniel V -- Krueger, Neil A -- Shin, Jiho -- Gamble, Paul -- Cheng, Huanyu -- Yu, Sooyoun -- Liu, Zhuangjian -- McCall, Jordan G -- Stephen, Manu -- Ying, Hanze -- Kim, Jeonghyun -- Park, Gayoung -- Webb, R Chad -- Lee, Chi Hwan -- Chung, Sangjin -- Wie, Dae Seung -- Gujar, Amit D -- Vemulapalli, Bharat -- Kim, Albert H -- Lee, Kyung-Mi -- Cheng, Jianjun -- Huang, Younggang -- Lee, Sang Hoon -- Braun, Paul V -- Ray, Wilson Z -- Rogers, John A -- F31MH101956/MH/NIMH NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2016 Feb 4;530(7588):71-6. doi: 10.1038/nature16492. Epub 2016 Jan 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA. ; Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA. ; Department of Neurological Surgery, Washington University School of Medicine, St Louis, Missouri 63110, USA. ; KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 136-701, Republic of Korea. ; Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA. ; Department of Engineering Science and Mechanics, Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, USA. ; Institute of High Performance Computing, Singapore 138632, Singapore. ; Department of Anesthesiology, Washington University School of Medicine, St Louis, Missouri 63110, USA. ; Department of Biomicrosystem Technology, Korea University, Seoul 136-701, South Korea. ; Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul 136-713, South Korea. ; Weldon School of Biomedical Engineering, School of Mechanical Engineering, The Center for Implantable Devices, Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, USA. ; School of Mechanical Engineering, Purdue University, West Lafayette, Indiana 47907, USA. ; Department of Mechanical Engineering, Civil and Environmental Engineering, Materials Science and Engineering, and Skin Disease Research Center, Northwestern University, Evanston, Illinois 60208, USA. ; Department of Biomedical Engineering, College of Health Science, Korea University, Seoul 136-703, South Korea. ; Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26779949" target="_blank"〉PubMed〈/a〉
    Keywords: *Absorbable Implants/adverse effects ; Administration, Cutaneous ; Animals ; Body Temperature ; Brain/*metabolism/surgery ; Electronics/*instrumentation ; Equipment Design ; Hydrolysis ; Male ; Monitoring, Physiologic/adverse effects/*instrumentation ; Organ Specificity ; Pressure ; *Prostheses and Implants/adverse effects ; Rats ; Rats, Inbred Lew ; *Silicon ; Telemetry/instrumentation ; Wireless Technology/instrumentation
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  • 26
    facet.materialart.
    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2016-03-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pollock, Kevin -- England -- Nature. 2016 Mar 17;531(7594):S64-6. doi: 10.1038/531S64a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26981733" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cities ; *City Planning ; Feedback ; Humans ; *Physics ; Plague/epidemiology ; Rats ; *Urbanization ; Vietnam/epidemiology
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  • 27
    Publication Date: 2016-01-07
    Description: Catalysis in biology is restricted to RNA (ribozymes) and protein enzymes, but synthetic biomolecular catalysts can also be made of DNA (deoxyribozymes) or synthetic genetic polymers. In vitro selection from synthetic random DNA libraries identified DNA catalysts for various chemical reactions beyond RNA backbone cleavage. DNA-catalysed reactions include RNA and DNA ligation in various topologies, hydrolytic cleavage and photorepair of DNA, as well as reactions of peptides and small molecules. In spite of comprehensive biochemical studies of DNA catalysts for two decades, fundamental mechanistic understanding of their function is lacking in the absence of three-dimensional models at atomic resolution. Early attempts to solve the crystal structure of an RNA-cleaving deoxyribozyme resulted in a catalytically irrelevant nucleic acid fold. Here we report the crystal structure of the RNA-ligating deoxyribozyme 9DB1 (ref. 14) at 2.8 A resolution. The structure captures the ligation reaction in the post-catalytic state, revealing a compact folding unit stabilized by numerous tertiary interactions, and an unanticipated organization of the catalytic centre. Structure-guided mutagenesis provided insights into the basis for regioselectivity of the ligation reaction and allowed remarkable manipulation of substrate recognition and reaction rate. Moreover, the structure highlights how the specific properties of deoxyribose are reflected in the backbone conformation of the DNA catalyst, in support of its intricate three-dimensional organization. The structural principles underlying the catalytic ability of DNA elucidate differences and similarities in DNA versus RNA catalysts, which is relevant for comprehending the privileged position of folded RNA in the prebiotic world and in current organisms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ponce-Salvatierra, Almudena -- Wawrzyniak-Turek, Katarzyna -- Steuerwald, Ulrich -- Hobartner, Claudia -- Pena, Vladimir -- England -- Nature. 2016 Jan 14;529(7585):231-4. doi: 10.1038/nature16471. Epub 2016 Jan 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Research Group Nucleic Acid Chemistry, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Gottingen, Germany. ; Research Group Macromolecular Crystallography, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Gottingen, Germany. ; Institute for Organic and Biomolecular Chemistry, Georg-August-University Gottingen, Tammannstr. 2, 37077 Gottingen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26735012" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Biocatalysis ; Catalytic Domain ; Crystallography, X-Ray ; DNA, Catalytic/chemical synthesis/*chemistry/metabolism ; Deoxyribose/chemistry/metabolism ; Kinetics ; Models, Molecular ; Molecular Sequence Data ; *Nucleic Acid Conformation ; Nucleotides/chemistry/metabolism ; Polynucleotide Ligases/chemistry/metabolism ; RNA/chemistry/metabolism ; RNA Folding ; Substrate Specificity
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  • 28
    Publication Date: 2016-03-05
    Description: How does an animal know where it is when it stops moving? Hippocampal place cells fire at discrete locations as subjects traverse space, thereby providing an explicit neural code for current location during locomotion. In contrast, during awake immobility, the hippocampus is thought to be dominated by neural firing representing past and possible future experience. The question of whether and how the hippocampus constructs a representation of current location in the absence of locomotion has been unresolved. Here we report that a distinct population of hippocampal neurons, located in the CA2 subregion, signals current location during immobility, and does so in association with a previously unidentified hippocampus-wide network pattern. In addition, signalling of location persists into brief periods of desynchronization prevalent in slow-wave sleep. The hippocampus thus generates a distinct representation of current location during immobility, pointing to mnemonic processing specific to experience occurring in the absence of locomotion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kay, Kenneth -- Sosa, Marielena -- Chung, Jason E -- Karlsson, Mattias P -- Larkin, Margaret C -- Frank, Loren M -- R01 MH090188/MH/NIMH NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2016 Mar 10;531(7593):185-90. doi: 10.1038/nature17144. Epub 2016 Mar 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉UCSF Center for Integrative Neuroscience and Department of Physiology, University of California San Francisco, California 94158, USA. ; Howard Hughes Medical Institute, University of California San Francisco, California 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26934224" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Hippocampus/anatomy & histology/*cytology/*physiology ; Male ; Models, Neurological ; Movement ; Neurons/*physiology ; Orientation/*physiology ; Rats ; Rats, Long-Evans ; Sleep/*physiology ; Space Perception/*physiology ; Spatial Memory/physiology
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  • 29
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    Nature Publishing Group (NPG)
    Publication Date: 2016-03-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McGilvray, Annabel -- England -- Nature. 2016 Mar 3;531(7592):S4-5. doi: 10.1038/531S4a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26934524" target="_blank"〉PubMed〈/a〉
    Keywords: Acetates/pharmacology/therapeutic use ; Aging/blood/drug effects/pathology/*psychology ; Alzheimer Disease/blood/therapy ; Animals ; Anti-Asthmatic Agents/pharmacology/therapeutic use ; Cognition Disorders/pathology/physiopathology/*prevention & control/*therapy ; Estrogens/pharmacology ; Female ; Hippocampus/drug effects/pathology/physiology/physiopathology ; Humans ; Inflammation Mediators/immunology ; Leukotrienes/immunology ; Macaca mulatta ; Male ; Mice ; Neuronal Plasticity/drug effects ; Parkinson Disease/therapy ; Plasma/chemistry/physiology ; Prefrontal Cortex/drug effects/pathology/physiology/physiopathology ; Quinolines/pharmacology/therapeutic use ; Rats ; Rejuvenation/*physiology/*psychology ; Synapses/drug effects/metabolism/pathology
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  • 30
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    Nature Publishing Group (NPG)
    Publication Date: 2016-03-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉King, Anthony -- England -- Nature. 2016 Mar 3;531(7592):S18-9. doi: 10.1038/531S18a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26934522" target="_blank"〉PubMed〈/a〉
    Keywords: Amygdala/metabolism ; Animals ; Brain/*physiology ; Bullying ; DNA Methylation ; Depression/complications/prevention & control/therapy ; Emotional Adjustment ; Epigenesis, Genetic/genetics ; Female ; Hippocampus/metabolism ; Humans ; Hydrocortisone/metabolism ; Maternal Behavior ; Memory/physiology ; Mice ; Models, Animal ; Oxytocin/metabolism ; Pregnancy ; Prenatal Exposure Delayed Effects/genetics ; Psychological Trauma/complications/genetics/metabolism ; Rats ; *Resilience, Psychological ; Social Isolation/psychology ; Stress, Psychological/complications/genetics/metabolism/therapy
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  • 31
    Publication Date: 2016-01-14
    Description: The myelin sheaths wrapped around axons by oligodendrocytes are crucial for brain function. In ischaemia myelin is damaged in a Ca(2+)-dependent manner, abolishing action potential propagation. This has been attributed to glutamate release activating Ca(2+)-permeable N-methyl-D-aspartate (NMDA) receptors. Surprisingly, we now show that NMDA does not raise the intracellular Ca(2+) concentration ([Ca(2+)]i) in mature oligodendrocytes and that, although ischaemia evokes a glutamate-triggered membrane current, this is generated by a rise of extracellular [K(+)] and decrease of membrane K(+) conductance. Nevertheless, ischaemia raises oligodendrocyte [Ca(2+)]i, [Mg(2+)]i and [H(+)]i, and buffering intracellular pH reduces the [Ca(2+)]i and [Mg(2+)]i increases, showing that these are evoked by the rise of [H(+)]i. The H(+)-gated [Ca(2+)]i elevation is mediated by channels with characteristics of TRPA1, being inhibited by ruthenium red, isopentenyl pyrophosphate, HC-030031, A967079 or TRPA1 knockout. TRPA1 block reduces myelin damage in ischaemia. These data suggest that TRPA1-containing ion channels could be a therapeutic target in white matter ischaemia.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4733665/" 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/PMC4733665/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hamilton, Nicola B -- Kolodziejczyk, Karolina -- Kougioumtzidou, Eleni -- Attwell, David -- Wellcome Trust/United Kingdom -- England -- Nature. 2016 Jan 28;529(7587):523-7. doi: 10.1038/nature16519. Epub 2016 Jan 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, Physiology &Pharmacology, University College London, Gower St., London WC1E 6BT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26760212" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain Ischemia/*metabolism/*pathology ; Calcium/*metabolism ; Calcium Signaling/drug effects ; Electric Conductivity ; Female ; Hydrogen-Ion Concentration ; Magnesium/metabolism ; Male ; Mice ; Mice, Transgenic ; Multiple Sclerosis/metabolism/pathology ; Myelin Sheath/drug effects/*metabolism/*pathology ; N-Methylaspartate/metabolism/pharmacology ; Oligodendroglia/drug effects/metabolism/pathology ; Potassium/metabolism ; *Protons ; Rats ; Rats, Sprague-Dawley ; Receptors, N-Methyl-D-Aspartate/metabolism ; Stroke/metabolism/pathology ; Transient Receptor Potential Channels/antagonists & ; inhibitors/deficiency/genetics/*metabolism ; White Matter/metabolism/pathology
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  • 32
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    Nature Publishing Group (NPG)
    Publication Date: 2016-03-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dance, Amber -- England -- Nature. 2016 Mar 3;531(7592):S2-3. doi: 10.1038/531S2a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26934523" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Amphetamines/adverse effects/pharmacology ; Animals ; Benzhydryl Compounds/pharmacology ; Biomedical Enhancement/ethics/*methods ; Caffeine/pharmacology ; Child ; Cognition/drug effects ; Dopamine/metabolism ; Healthy Volunteers ; Humans ; Intelligence/*drug effects ; Intelligence Tests ; Methylphenidate/adverse effects/pharmacology ; Neurotransmitter Agents/metabolism ; Nicotine/adverse effects/pharmacology ; Norepinephrine/metabolism ; Off-Label Use ; Performance-Enhancing Substances/adverse effects/*pharmacology ; Prefrontal Cortex/drug effects/physiology ; Rats ; Substance-Related Disorders/etiology ; Video Games/psychology
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  • 33
    Publication Date: 2016-02-09
    Description: The tremendous pandemic potential of coronaviruses was demonstrated twice in the past few decades by two global outbreaks of deadly pneumonia. Entry of coronaviruses into cells is mediated by the transmembrane spike glycoprotein S, which forms a trimer carrying receptor-binding and membrane fusion functions. S also contains the principal antigenic determinants and is the target of neutralizing antibodies. Here we present the structure of a mouse coronavirus S trimer ectodomain determined at 4.0 A resolution by single particle cryo-electron microscopy. It reveals the metastable pre-fusion architecture of S and highlights key interactions stabilizing it. The structure shares a common core with paramyxovirus F proteins, implicating mechanistic similarities and an evolutionary connection between these viral fusion proteins. The accessibility of the highly conserved fusion peptide at the periphery of the trimer indicates potential vaccinology strategies to elicit broadly neutralizing antibodies against coronaviruses. Finally, comparison with crystal structures of human coronavirus S domains allows rationalization of the molecular basis for species specificity based on the use of spatially contiguous but distinct domains.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Walls, Alexandra C -- Tortorici, M Alejandra -- Bosch, Berend-Jan -- Frenz, Brandon -- Rottier, Peter J M -- DiMaio, Frank -- Rey, Felix A -- Veesler, David -- GM103310/GM/NIGMS NIH HHS/ -- T32GM008268/GM/NIGMS NIH HHS/ -- England -- Nature. 2016 Mar 3;531(7592):114-7. doi: 10.1038/nature16988. Epub 2016 Feb 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Washington, Seattle, Washington 98195, USA. ; Institut Pasteur, Unite de Virologie Structurale, 75015 Paris, France. ; CNRS UMR 3569 Virologie, 75015 Paris, France. ; Virology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, 3584 CL Utrecht, The Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26855426" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Neutralizing/immunology ; Cell Line ; Coronavirus Infections/immunology/virology ; *Cryoelectron Microscopy ; Drosophila melanogaster ; Mice ; Models, Molecular ; Molecular Sequence Data ; Murine hepatitis virus/*chemistry/immunology/*ultrastructure ; Protein Multimerization ; Protein Structure, Tertiary ; Spike Glycoprotein, Coronavirus/*chemistry/immunology/*ultrastructure ; Viral Vaccines/chemistry/immunology ; Virus Internalization
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  • 34
    Publication Date: 2016-03-05
    Description: The most recent Ebola virus outbreak in West Africa, which was unprecedented in the number of cases and fatalities, geographic distribution, and number of nations affected, highlights the need for safe, effective, and readily available antiviral agents for treatment and prevention of acute Ebola virus (EBOV) disease (EVD) or sequelae. No antiviral therapeutics have yet received regulatory approval or demonstrated clinical efficacy. Here we report the discovery of a novel small molecule GS-5734, a monophosphoramidate prodrug of an adenosine analogue, with antiviral activity against EBOV. GS-5734 exhibits antiviral activity against multiple variants of EBOV and other filoviruses in cell-based assays. The pharmacologically active nucleoside triphosphate (NTP) is efficiently formed in multiple human cell types incubated with GS-5734 in vitro, and the NTP acts as an alternative substrate and RNA-chain terminator in primer-extension assays using a surrogate respiratory syncytial virus RNA polymerase. Intravenous administration of GS-5734 to nonhuman primates resulted in persistent NTP levels in peripheral blood mononuclear cells (half-life, 14 h) and distribution to sanctuary sites for viral replication including testes, eyes, and brain. In a rhesus monkey model of EVD, once-daily intravenous administration of 10 mg kg(-1) GS-5734 for 12 days resulted in profound suppression of EBOV replication and protected 100% of EBOV-infected animals against lethal disease, ameliorating clinical disease signs and pathophysiological markers, even when treatments were initiated three days after virus exposure when systemic viral RNA was detected in two out of six treated animals. These results show the first substantive post-exposure protection by a small-molecule antiviral compound against EBOV in nonhuman primates. The broad-spectrum antiviral activity of GS-5734 in vitro against other pathogenic RNA viruses, including filoviruses, arenaviruses, and coronaviruses, suggests the potential for wider medical use. GS-5734 is amenable to large-scale manufacturing, and clinical studies investigating the drug safety and pharmacokinetics are ongoing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Warren, Travis K -- Jordan, Robert -- Lo, Michael K -- Ray, Adrian S -- Mackman, Richard L -- Soloveva, Veronica -- Siegel, Dustin -- Perron, Michel -- Bannister, Roy -- Hui, Hon C -- Larson, Nate -- Strickley, Robert -- Wells, Jay -- Stuthman, Kelly S -- Van Tongeren, Sean A -- Garza, Nicole L -- Donnelly, Ginger -- Shurtleff, Amy C -- Retterer, Cary J -- Gharaibeh, Dima -- Zamani, Rouzbeh -- Kenny, Tara -- Eaton, Brett P -- Grimes, Elizabeth -- Welch, Lisa S -- Gomba, Laura -- Wilhelmsen, Catherine L -- Nichols, Donald K -- Nuss, Jonathan E -- Nagle, Elyse R -- Kugelman, Jeffrey R -- Palacios, Gustavo -- Doerffler, Edward -- Neville, Sean -- Carra, Ernest -- Clarke, Michael O -- Zhang, Lijun -- Lew, Willard -- Ross, Bruce -- Wang, Queenie -- Chun, Kwon -- Wolfe, Lydia -- Babusis, Darius -- Park, Yeojin -- Stray, Kirsten M -- Trancheva, Iva -- Feng, Joy Y -- Barauskas, Ona -- Xu, Yili -- Wong, Pamela -- Braun, Molly R -- Flint, Mike -- McMullan, Laura K -- Chen, Shan-Shan -- Fearns, Rachel -- Swaminathan, Swami -- Mayers, Douglas L -- Spiropoulou, Christina F -- Lee, William A -- Nichol, Stuart T -- Cihlar, Tomas -- Bavari, Sina -- R01 AI113321/AI/NIAID NIH HHS/ -- R01AI113321/AI/NIAID NIH HHS/ -- England -- Nature. 2016 Mar 17;531(7594):381-5. doi: 10.1038/nature17180. Epub 2016 Mar 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉United States Army Medical Research Institute of Infectious Diseases, Frederick, Maryland 21702, USA. ; United States Army Medical Research Institute of Infectious Diseases, Therapeutic Development Center, Frederick, Maryland 21702, USA. ; Gilead Sciences, Foster City, California 94404, USA. ; Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA. ; Boston University School of Medicine, Boston, Massachusetts 02118, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26934220" target="_blank"〉PubMed〈/a〉
    Keywords: Alanine/*analogs & derivatives/pharmacokinetics/pharmacology/therapeutic use ; Amino Acid Sequence ; Animals ; Antiviral Agents/pharmacokinetics/pharmacology/*therapeutic use ; Cell Line, Tumor ; Ebolavirus/drug effects ; Female ; HeLa Cells ; Hemorrhagic Fever, Ebola/*drug therapy/prevention & control ; Humans ; Macaca mulatta/*virology ; Male ; Molecular Sequence Data ; Organ Specificity ; Prodrugs/pharmacokinetics/pharmacology/therapeutic use ; Ribonucleotides/pharmacokinetics/pharmacology/*therapeutic use
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  • 35
    Publication Date: 2016-03-24
    Description: Arrestins are cytosolic proteins that regulate G-protein-coupled receptor (GPCR) desensitization, internalization, trafficking and signalling. Arrestin recruitment uncouples GPCRs from heterotrimeric G proteins, and targets the proteins for internalization via clathrin-coated pits. Arrestins also function as ligand-regulated scaffolds that recruit multiple non-G-protein effectors into GPCR-based 'signalsomes'. Although the dominant function(s) of arrestins vary between receptors, the mechanism whereby different GPCRs specify these divergent functions is unclear. Using a panel of intramolecular fluorescein arsenical hairpin (FlAsH) bioluminescence resonance energy transfer (BRET) reporters to monitor conformational changes in beta-arrestin2, here we show that GPCRs impose distinctive arrestin 'conformational signatures' that reflect the stability of the receptor-arrestin complex and role of beta-arrestin2 in activating or dampening downstream signalling events. The predictive value of these signatures extends to structurally distinct ligands activating the same GPCR, such that the innate properties of the ligand are reflected as changes in beta-arrestin2 conformation. Our findings demonstrate that information about ligand-receptor conformation is encoded within the population average beta-arrestin2 conformation, and provide insight into how different GPCRs can use a common effector for different purposes. This approach may have application in the characterization and development of functionally selective GPCR ligands and in identifying factors that dictate arrestin conformation and function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, Mi-Hye -- Appleton, Kathryn M -- Strungs, Erik G -- Kwon, Joshua Y -- Morinelli, Thomas A -- Peterson, Yuri K -- Laporte, Stephane A -- Luttrell, Louis M -- DK055524/DK/NIDDK NIH HHS/ -- GM095497/GM/NIGMS NIH HHS/ -- MOP-74603/Canadian Institutes of Health Research/Canada -- R01 DK055524/DK/NIDDK NIH HHS/ -- R01 GM095497/GM/NIGMS NIH HHS/ -- RR027777/RR/NCRR NIH HHS/ -- S10 RR027777/RR/NCRR NIH HHS/ -- England -- Nature. 2016 Mar 31;531(7596):665-8. doi: 10.1038/nature17154. Epub 2016 Mar 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Medical University of South Carolina, Charleston, South Carolina 29425, USA. ; Department of Pharmaceutical &Biomedical Sciences, College of Pharmacy, Medical University of South Carolina, Charleston, South Carolina 29425, USA. ; Department of Medicine, McGill University Health Center Research Institute, McGill University, Quebec H4A 3J1, Canada. ; Pharmacology and Therapeutics, McGill University, Quebec H3G 1Y6, Canada. ; Anatomy and Cell Biology, McGill University, Quebec H3A 0C7, Canada. ; Research Service of the Ralph H. Johnson Veterans Affairs Medical Center, Charleston, South Carolina 29401, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27007854" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arrestins/*chemistry/*metabolism ; Enzyme Activation ; HEK293 Cells ; Humans ; Ligands ; Mitogen-Activated Protein Kinase 1/metabolism ; Mitogen-Activated Protein Kinase 3/metabolism ; Protein Conformation ; Protein Transport ; Rats ; Receptors, G-Protein-Coupled/chemistry/*metabolism ; *Signal Transduction
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  • 36
    Publication Date: 2016-02-11
    Description: In multiple sclerosis, brain-reactive T cells invade the central nervous system (CNS) and induce a self-destructive inflammatory process. T-cell infiltrates are not only found within the parenchyma and the meninges, but also in the cerebrospinal fluid (CSF) that bathes the entire CNS tissue. How the T cells reach the CSF, their functionality, and whether they traffic between the CSF and other CNS compartments remains hypothetical. Here we show that effector T cells enter the CSF from the leptomeninges during Lewis rat experimental autoimmune encephalomyelitis (EAE), a model of multiple sclerosis. While moving through the three-dimensional leptomeningeal network of collagen fibres in a random Brownian walk, T cells were flushed from the surface by the flow of the CSF. The detached cells displayed significantly lower activation levels compared to T cells from the leptomeninges and CNS parenchyma. However, they did not represent a specialized non-pathogenic cellular sub-fraction, as their gene expression profile strongly resembled that of tissue-derived T cells and they fully retained their encephalitogenic potential. T-cell detachment from the leptomeninges was counteracted by integrins VLA-4 and LFA-1 binding to their respective ligands produced by resident macrophages. Chemokine signalling via CCR5/CXCR3 and antigenic stimulation of T cells in contact with the leptomeningeal macrophages enforced their adhesiveness. T cells floating in the CSF were able to reattach to the leptomeninges through steps reminiscent of vascular adhesion in CNS blood vessels, and invade the parenchyma. The molecular/cellular conditions for T-cell reattachment were the same as the requirements for detachment from the leptomeningeal milieu. Our data indicate that the leptomeninges represent a checkpoint at which activated T cells are licensed to enter the CNS parenchyma and non-activated T cells are preferentially released into the CSF, from where they can reach areas of antigen availability and tissue damage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schlager, Christian -- Korner, Henrike -- Krueger, Martin -- Vidoli, Stefano -- Haberl, Michael -- Mielke, Dorothee -- Brylla, Elke -- Issekutz, Thomas -- Cabanas, Carlos -- Nelson, Peter J -- Ziemssen, Tjalf -- Rohde, Veit -- Bechmann, Ingo -- Lodygin, Dmitri -- Odoardi, Francesca -- Flugel, Alexander -- England -- Nature. 2016 Feb 18;530(7590):349-53. doi: 10.1038/nature16939. Epub 2016 Feb 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Neuroimmunology, Institute for Multiple Sclerosis Research, University Medical Centre Gottingen, 37073 Gottingen, Germany. ; Institute of Anatomy, University of Leipzig, 04103 Leipzig, Germany. ; Department of Structural and Geotechnical Engineering, University of Rome La Sapienza, 00185 Rome, Italy. ; Department Neurosurgery, University Medical Centre Gottingen, 37075 Gottingen, Germany. ; Division of Immunology, Department of Pediatrics Dalhousie University, Halifax B3H 4R2, Canada. ; Departamento de Biologia Celular e Inmunologia, Centro de Biologia Molecular Severo Ochoa, 28049 Madrid, Spain. ; Medical Clinic and Policlinic IV, Ludwig-Maximilians-University of Munich, 80336 Munich, Germany. ; Department of Neurology, University Hospital, 01307 Dresden, Germany. ; Max-Planck-Institute for Experimental Medicine, 37075 Gottingen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26863192" target="_blank"〉PubMed〈/a〉
    Keywords: Adoptive Transfer ; Animals ; Cell Adhesion ; *Cell Movement ; Cerebrospinal Fluid/*cytology/immunology ; Chemokines/metabolism ; Choroid Plexus ; Collagen/metabolism ; Disease Models, Animal ; Encephalomyelitis, Autoimmune, Experimental/immunology/*pathology ; Female ; Integrin alpha4beta1/metabolism ; Lymphocyte Activation ; Lymphocyte Function-Associated Antigen-1/metabolism ; Macrophages/immunology/metabolism ; Male ; Meninges/immunology/*pathology ; Multiple Sclerosis/immunology/*pathology ; Rats ; Rats, Inbred Lew ; Receptors, CCR5/metabolism ; Receptors, CXCR3/metabolism ; T-Lymphocytes/immunology/*pathology
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  • 37
    Publication Date: 2016-02-09
    Description: Sighs are long, deep breaths expressing sadness, relief or exhaustion. Sighs also occur spontaneously every few minutes to reinflate alveoli, and sighing increases under hypoxia, stress, and certain psychiatric conditions. Here we use molecular, genetic, and pharmacologic approaches to identify a peptidergic sigh control circuit in murine brain. Small neural subpopulations in a key breathing control centre, the retrotrapezoid nucleus/parafacial respiratory group (RTN/pFRG), express bombesin-like neuropeptide genes neuromedin B (Nmb) or gastrin-releasing peptide (Grp). These project to the preBotzinger Complex (preBotC), the respiratory rhythm generator, which expresses NMB and GRP receptors in overlapping subsets of ~200 neurons. Introducing either neuropeptide into preBotC or onto preBotC slices, induced sighing or in vitro sigh activity, whereas elimination or inhibition of either receptor reduced basal sighing, and inhibition of both abolished it. Ablating receptor-expressing neurons eliminated basal and hypoxia-induced sighing, but left breathing otherwise intact initially. We propose that these overlapping peptidergic pathways comprise the core of a sigh control circuit that integrates physiological and perhaps emotional input to transform normal breaths into sighs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Peng -- Janczewski, Wiktor A -- Yackle, Kevin -- Kam, Kaiwen -- Pagliardini, Silvia -- Krasnow, Mark A -- Feldman, Jack L -- HL40959/HL/NHLBI NIH HHS/ -- HL70029/HL/NHLBI NIH HHS/ -- NS72211/NS/NINDS NIH HHS/ -- R01 HL040959/HL/NHLBI NIH HHS/ -- R01 HL070029/HL/NHLBI NIH HHS/ -- R01 NS072211/NS/NINDS NIH HHS/ -- Canadian Institutes of Health Research/Canada -- Howard Hughes Medical Institute/ -- England -- Nature. 2016 Feb 18;530(7590):293-7. doi: 10.1038/nature16964. Epub 2016 Feb 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, California 94305, USA. ; Systems Neurobiology Laboratory, Department of Neurobiology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California 90095, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26855425" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bombesin/pharmacology ; Emotions/physiology ; Female ; Gastrin-Releasing Peptide/deficiency/genetics/*metabolism ; In Vitro Techniques ; Male ; Mice ; Mice, Inbred C57BL ; Neurokinin B/*analogs & derivatives/deficiency/genetics/metabolism/pharmacology ; Neurons/drug effects/*physiology ; Rats ; Rats, Sprague-Dawley ; Receptors, Bombesin/*metabolism ; *Respiration/drug effects ; Respiratory Center/cytology/drug effects/physiology ; Ribosome Inactivating Proteins, Type 1/pharmacology ; Signal Transduction/drug effects/*physiology
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  • 38
    Publication Date: 2016-01-28
    Description: Lymphoid tissue is a key reservoir established by HIV-1 during acute infection. It is a site associated with viral production, storage of viral particles in immune complexes, and viral persistence. Although combinations of antiretroviral drugs usually suppress viral replication and reduce viral RNA to undetectable levels in blood, it is unclear whether treatment fully suppresses viral replication in lymphoid tissue reservoirs. Here we show that virus evolution and trafficking between tissue compartments continues in patients with undetectable levels of virus in their bloodstream. We present a spatial and dynamic model of persistent viral replication and spread that indicates why the development of drug resistance is not a foregone conclusion under conditions in which drug concentrations are insufficient to completely block virus replication. These data provide new insights into the evolutionary and infection dynamics of the virus population within the host, revealing that HIV-1 can continue to replicate and replenish the viral reservoir despite potent antiretroviral therapy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lorenzo-Redondo, Ramon -- Fryer, Helen R -- Bedford, Trevor -- Kim, Eun-Young -- Archer, John -- Kosakovsky Pond, Sergei L -- Chung, Yoon-Seok -- Penugonda, Sudhir -- Chipman, Jeffrey G -- Fletcher, Courtney V -- Schacker, Timothy W -- Malim, Michael H -- Rambaut, Andrew -- Haase, Ashley T -- McLean, Angela R -- Wolinsky, Steven M -- AI1074340/AI/NIAID NIH HHS/ -- DA033773/DA/NIDA NIH HHS/ -- G1000196/Medical Research Council/United Kingdom -- GM110749/GM/NIGMS NIH HHS/ -- R01 DA033773/DA/NIDA NIH HHS/ -- Wellcome Trust/United Kingdom -- England -- Nature. 2016 Feb 4;530(7588):51-6. doi: 10.1038/nature16933. Epub 2016 Jan 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60011, USA. ; Institute for Emerging Infections, Department of Zoology, University of Oxford, Oxford, OX1 3PS, UK. ; Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA. ; Centro de Investigacao em Biodiversidade e Recursos Geneticos Universidade do Porto, 4485-661 Vairao, Portugal. ; Department of Medicine, University of California, San Diego, California 92093, USA. ; Division of AIDS, Center for Immunology and Pathology, Korea National Institutes of Health, Chungju-si, Chungcheongbuk-do, 28159, South Korea. ; Department of Surgery, University of Minnesota, Minneapolis, Minnesota 55455, USA. ; Antiviral Pharmacology Laboratory, University of Nebraska Medical Center, College of Pharmacy, Omaha, Nebraska 68198, USA. ; Division of Infectious Diseases, University of Minnesota, Minneapolis, Minnesota 55455, USA. ; Department of Infectious Diseases, King's College London, Guy's Hospital, London SE21 7DN, UK. ; Centre for Immunology, Infection and Evolution, University of Edinburgh, Edinburgh EH9 3FL, UK. ; Department of Microbiology, University of Minnesota, Minneapolis, Minnesota 55455, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26814962" target="_blank"〉PubMed〈/a〉
    Keywords: Anti-HIV Agents/administration & dosage/pharmacology/therapeutic use ; Carrier State/blood/*drug therapy/*virology ; Drug Resistance, Viral/drug effects ; HIV Infections/blood/*drug therapy/*virology ; HIV-1/drug effects/genetics/*growth & development/isolation & purification ; Haplotypes/drug effects ; Humans ; Lymph Nodes/drug effects/virology ; Models, Biological ; Molecular Sequence Data ; Phylogeny ; Selection, Genetic/drug effects ; Sequence Analysis, DNA ; Spatio-Temporal Analysis ; Time Factors ; *Viral Load/drug effects ; *Virus Replication/drug effects
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  • 39
    Publication Date: 2016-04-28
    Description: The Bacillus thuringiensis delta-endotoxins (Bt toxins) are widely used insecticidal proteins in engineered crops that provide agricultural, economic, and environmental benefits. The development of insect resistance to Bt toxins endangers their long-term effectiveness. Here we have developed a phage-assisted continuous evolution selection that rapidly evolves high-affinity protein-protein interactions, and applied this system to evolve variants of the Bt toxin Cry1Ac that bind a cadherin-like receptor from the insect pest Trichoplusia ni (TnCAD) that is not natively bound by wild-type Cry1Ac. The resulting evolved Cry1Ac variants bind TnCAD with high affinity (dissociation constant Kd = 11-41 nM), kill TnCAD-expressing insect cells that are not susceptible to wild-type Cry1Ac, and kill Cry1Ac-resistant T. ni insects up to 335-fold more potently than wild-type Cry1Ac. Our findings establish that the evolution of Bt toxins with novel insect cell receptor affinity can overcome insect Bt toxin resistance and confer lethality approaching that of the wild-type Bt toxin against non-resistant insects.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4865400/" 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/PMC4865400/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Badran, Ahmed H -- Guzov, Victor M -- Huai, Qing -- Kemp, Melissa M -- Vishwanath, Prashanth -- Kain, Wendy -- Nance, Autumn M -- Evdokimov, Artem -- Moshiri, Farhad -- Turner, Keith H -- Wang, Ping -- Malvar, Thomas -- Liu, David R -- R01 EB022376/EB/NIBIB NIH HHS/ -- R01EB022376/EB/NIBIB NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2016 May 5;533(7601):58-63. doi: 10.1038/nature17938. Epub 2016 Apr 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA. ; Howard Hughes Medical Institute, Harvard University, Cambridge, Massachusetts 02138, USA. ; Monsanto Company, 245 First Street, Suite 200, Cambridge, Massachusetts 02142, USA. ; Department of Entomology, Cornell University, Geneva, New York 14456, USA. ; Monsanto Company, 700 Chesterfield Parkway West, Chesterfield, Missouri 63017, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27120167" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Bacillus thuringiensis/*genetics ; Bacterial Proteins/*genetics/*metabolism ; Bacteriophages/genetics ; Biotechnology ; Cadherins/metabolism ; Cell Death ; Consensus Sequence ; Crops, Agricultural/genetics/metabolism ; Directed Molecular Evolution/*methods ; Endotoxins/*genetics/*metabolism ; Genetic Variation/*genetics ; Hemolysin Proteins/*genetics/*metabolism ; *Insecticide Resistance ; Insecticides/metabolism ; Molecular Sequence Data ; Moths/cytology/*physiology ; Mutagenesis/genetics ; Pest Control, Biological/*methods ; Plants, Genetically Modified ; Protein Binding/genetics ; Protein Stability ; Selection, Genetic
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  • 40
    Publication Date: 2016-01-21
    Description: Cellular immunity against viral infection and tumour cells depends on antigen presentation by major histocompatibility complex class I (MHC I) molecules. Intracellular antigenic peptides are transported into the endoplasmic reticulum by the transporter associated with antigen processing (TAP) and then loaded onto the nascent MHC I molecules, which are exported to the cell surface and present peptides to the immune system. Cytotoxic T lymphocytes recognize non-self peptides and program the infected or malignant cells for apoptosis. Defects in TAP account for immunodeficiency and tumour development. To escape immune surveillance, some viruses have evolved strategies either to downregulate TAP expression or directly inhibit TAP activity. So far, neither the architecture of TAP nor the mechanism of viral inhibition has been elucidated at the structural level. Here we describe the cryo-electron microscopy structure of human TAP in complex with its inhibitor ICP47, a small protein produced by the herpes simplex virus I. Here we show that the 12 transmembrane helices and 2 cytosolic nucleotide-binding domains of the transporter adopt an inward-facing conformation with the two nucleotide-binding domains separated. The viral inhibitor ICP47 forms a long helical hairpin, which plugs the translocation pathway of TAP from the cytoplasmic side. Association of ICP47 precludes substrate binding and prevents nucleotide-binding domain closure necessary for ATP hydrolysis. This work illustrates a striking example of immune evasion by persistent viruses. By blocking viral antigens from entering the endoplasmic reticulum, herpes simplex virus is hidden from cytotoxic T lymphocytes, which may contribute to establishing a lifelong infection in the host.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oldham, Michael L -- Hite, Richard K -- Steffen, Alanna M -- Damko, Ermelinda -- Li, Zongli -- Walz, Thomas -- Chen, Jue -- Howard Hughes Medical Institute/ -- England -- Nature. 2016 Jan 28;529(7587):537-40. doi: 10.1038/nature16506. Epub 2016 Jan 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Rockefeller University, 1230 York Avenue, New York, New York 10065, USA. ; Howard Hughes Medical Institute, 4000 Jones Bridge Road, Chevy Chase, Maryland 20815, USA. ; Department of Cell Biology, Harvard Medical School, 240 Longwood Avenue, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26789246" target="_blank"〉PubMed〈/a〉
    Keywords: ATP-Binding Cassette Transporters/antagonists & ; inhibitors/chemistry/*metabolism/*ultrastructure ; Amino Acid Sequence ; Antigens, Viral/immunology/metabolism ; *Cryoelectron Microscopy ; Endoplasmic Reticulum/metabolism ; Herpesvirus 1, Human/chemistry/*immunology/metabolism/ultrastructure ; Immediate-Early Proteins/chemistry/*metabolism/*ultrastructure ; *Immune Evasion ; Models, Molecular ; Molecular Sequence Data ; Protein Binding ; Protein Conformation
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  • 41
    Publication Date: 2016-01-21
    Description: The p53 pro-apoptotic tumour suppressor is mutated or functionally altered in most cancers. In epithelial tumours induced by 'high-risk' mucosal human papilloma viruses, including human cervical carcinoma and a growing number of head-and-neck cancers, p53 is degraded by the viral oncoprotein E6 (ref. 2). In this process, E6 binds to a short leucine (L)-rich LxxLL consensus sequence within the cellular ubiquitin ligase E6AP. Subsequently, the E6/E6AP heterodimer recruits and degrades p53 (ref. 4). Neither E6 nor E6AP are separately able to recruit p53 (refs 3, 5), and the precise mode of assembly of E6, E6AP and p53 is unknown. Here we solve the crystal structure of a ternary complex comprising full-length human papilloma virus type 16 (HPV-16) E6, the LxxLL motif of E6AP and the core domain of p53. The LxxLL motif of E6AP renders the conformation of E6 competent for interaction with p53 by structuring a p53-binding cleft on E6. Mutagenesis of critical positions at the E6-p53 interface disrupts p53 degradation. The E6-binding site of p53 is distal from previously described DNA- and protein-binding surfaces of the core domain. This suggests that, in principle, E6 may avoid competition with cellular factors by targeting both free and bound p53 molecules. The E6/E6AP/p53 complex represents a prototype of viral hijacking of both the ubiquitin-mediated protein degradation pathway and the p53 tumour suppressor pathway. The present structure provides a framework for the design of inhibitory therapeutic strategies against oncogenesis mediated by human papilloma virus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Martinez-Zapien, Denise -- Ruiz, Francesc Xavier -- Poirson, Juline -- Mitschler, Andre -- Ramirez, Juan -- Forster, Anne -- Cousido-Siah, Alexandra -- Masson, Murielle -- Vande Pol, Scott -- Podjarny, Alberto -- Trave, Gilles -- Zanier, Katia -- R01CA134737/CA/NCI NIH HHS/ -- England -- Nature. 2016 Jan 28;529(7587):541-5. doi: 10.1038/nature16481. Epub 2016 Jan 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Equipe labellisee Ligue, Biotechnologie et signalisation cellulaire UMR 7242, Ecole Superieure de Biotechnologie de Strasbourg, Boulevard Sebastien Brant, BP 10413, F-67412 Illkirch, France. ; Institut de Genetique et de Biologie Moleculaire et Cellulaire (IGBMC)/INSERM U964/CNRS UMR 7104/Universite de Strasbourg, 1 rue Laurent Fries, BP 10142, F-67404 Illkirch, France. ; Department of Pathology, University of Virginia, PO Box 800904, Charlottesville, Virginia 22908-0904, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26789255" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acid Sequence ; Binding Sites ; Crystallography, X-Ray ; Human papillomavirus 16/chemistry/*metabolism/pathogenicity ; Humans ; Models, Biological ; Models, Molecular ; Molecular Sequence Data ; Mutant Proteins/chemistry/metabolism ; Oncogene Proteins, Viral/*chemistry/genetics/*metabolism ; Protein Binding ; Protein Structure, Tertiary ; *Proteolysis ; Repressor Proteins/*chemistry/genetics/*metabolism ; Tumor Suppressor Protein p53/*chemistry/genetics/*metabolism ; Ubiquitin-Protein Ligases/*chemistry
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  • 42
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    Nature Publishing Group (NPG)
    Publication Date: 2016-03-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chi, Kelly Rae -- England -- Nature. 2016 Mar 3;531(7592):S16-7. doi: 10.1038/531S16a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26934521" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*anatomy & histology/*physiology ; Cognition/*physiology ; Computer Simulation ; Humans ; Models, Anatomic ; *Models, Neurological ; Neocortex/physiology ; Neurons/physiology ; Rats
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  • 43
    Publication Date: 2016-03-24
    Description: A marked bias towards risk aversion has been observed in nearly every species tested. A minority of individuals, however, instead seem to prefer risk (repeatedly choosing uncertain large rewards over certain but smaller rewards), and even risk-averse individuals sometimes opt for riskier alternatives. It is not known how neural activity underlies such important shifts in decision-making--either as a stable trait across individuals or at the level of variability within individuals. Here we describe a model of risk-preference in rats, in which stable individual differences, trial-by-trial choices, and responses to pharmacological agents all parallel human behaviour. By combining new genetic targeting strategies with optical recording of neural activity during behaviour in this model, we identify relevant temporally specific signals from a genetically and anatomically defined population of neurons. This activity occurred within dopamine receptor type-2 (D2R)-expressing cells in the nucleus accumbens (NAc), signalled unfavourable outcomes from the recent past at a time appropriate for influencing subsequent decisions, and also predicted subsequent choices made. Having uncovered this naturally occurring neural correlate of risk selection, we then mimicked the temporally specific signal with optogenetic control during decision-making and demonstrated its causal effect in driving risk-preference. Specifically, risk-preferring rats could be instantaneously converted to risk-averse rats with precisely timed phasic stimulation of NAc D2R cells. These findings suggest that individual differences in risk-preference, as well as real-time risky decision-making, can be largely explained by the encoding in D2R-expressing NAc cells of prior unfavourable outcomes during decision-making.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zalocusky, Kelly A -- Ramakrishnan, Charu -- Lerner, Talia N -- Davidson, Thomas J -- Knutson, Brian -- Deisseroth, Karl -- 1F31MH105151-01/MH/NIMH NIH HHS/ -- 1F32MH105053-01/MH/NIMH NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2016 Mar 31;531(7596):642-6. doi: 10.1038/nature17400. Epub 2016 Mar 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Bioengineering Department, Stanford University, Stanford, California 94305, USA. ; Neurosciences Program, Stanford University, Stanford, California 94305, USA. ; CNC Program, Stanford University, Stanford, California 94305, USA. ; Psychology Department, Stanford University, Stanford, California 94305, USA. ; Howard Hughes Medical Institute, Stanford University, Stanford, California 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27007845" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Choice Behavior ; *Decision Making ; Humans ; Individuality ; Male ; Models, Animal ; Models, Neurological ; Models, Psychological ; Neurons/*metabolism ; Nucleus Accumbens/*cytology/*metabolism ; Rats ; Rats, Long-Evans ; Receptors, Dopamine D2/*metabolism ; Reward ; *Risk Management ; Signal Transduction ; Uncertainty
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  • 44
    Publication Date: 2016-04-07
    Description: Signalling by ubiquitination regulates virtually every cellular process in eukaryotes. Covalent attachment of ubiquitin to a substrate is catalysed by the E1, E2 and E3 three-enzyme cascade, which links the carboxy terminus of ubiquitin to the epsilon-amino group of, in most cases, a lysine of the substrate via an isopeptide bond. Given the essential roles of ubiquitination in the regulation of the immune system, it is not surprising that the ubiquitination network is a common target for diverse infectious agents. For example, many bacterial pathogens exploit ubiquitin signalling using virulence factors that function as E3 ligases, deubiquitinases or as enzymes that directly attack ubiquitin. The bacterial pathogen Legionella pneumophila utilizes approximately 300 effectors that modulate diverse host processes to create a permissive niche for its replication in phagocytes. Here we demonstrate that members of the SidE effector family of L. pneumophila ubiquitinate multiple Rab small GTPases associated with the endoplasmic reticulum. Moreover, we show that these proteins are capable of catalysing ubiquitination without the need for the E1 and E2 enzymes. A putative mono-ADP-ribosyltransferase motif critical for the ubiquitination activity is also essential for the role of the SidE family in intracellular bacterial replication in a protozoan host. The E1/E2-independent ubiquitination catalysed by these enzymes is energized by nicotinamide adenine dinucleotide, which activates ubiquitin by the formation of ADP-ribosylated ubiquitin. These results establish that ubiquitination can be catalysed by a single enzyme, the activity of which does not require ATP.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Qiu, Jiazhang -- Sheedlo, Michael J -- Yu, Kaiwen -- Tan, Yunhao -- Nakayasu, Ernesto S -- Das, Chittaranjan -- Liu, Xiaoyun -- Luo, Zhao-Qing -- 2R01GM103401/GM/NIGMS NIH HHS/ -- K02AI085403/AI/NIAID NIH HHS/ -- R21AI105714/AI/NIAID NIH HHS/ -- R56AI103168/AI/NIAID NIH HHS/ -- England -- Nature. 2016 May 5;533(7601):120-4. doi: 10.1038/nature17657. Epub 2016 Apr 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Purdue Institute for Inflammation, Immunology and Infectious Disease and Department of Biological Sciences, Purdue University, West Lafayette, Indiana 47907, USA. ; Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, USA. ; Institute of Analytical Chemistry and Synthetic and Functional Biomolecules Center, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China. ; Biological Science Division, Pacific Northwest National Laboratory, Richland, Washington 99352, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27049943" target="_blank"〉PubMed〈/a〉
    Keywords: ADP Ribose Transferases/chemistry/metabolism ; Adenosine Diphosphate Ribose/metabolism ; Adenosine Triphosphate ; Amino Acid Motifs ; Amino Acid Sequence ; Bacterial Load ; Bacterial Proteins/*metabolism ; Biocatalysis ; Endoplasmic Reticulum/enzymology/metabolism ; Legionella pneumophila/*chemistry/cytology/enzymology/pathogenicity ; Membrane Proteins/metabolism ; Molecular Sequence Data ; NAD/metabolism ; Ubiquitin/chemistry/metabolism ; Ubiquitin-Activating Enzymes ; Ubiquitin-Conjugating Enzymes ; *Ubiquitination ; Virulence Factors/metabolism ; rab GTP-Binding Proteins/chemistry/metabolism
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  • 45
    Publication Date: 2016-04-21
    Description: CRISPR-Cas systems that provide defence against mobile genetic elements in bacteria and archaea have evolved a variety of mechanisms to target and cleave RNA or DNA. The well-studied types I, II and III utilize a set of distinct CRISPR-associated (Cas) proteins for production of mature CRISPR RNAs (crRNAs) and interference with invading nucleic acids. In types I and III, Cas6 or Cas5d cleaves precursor crRNA (pre-crRNA) and the mature crRNAs then guide a complex of Cas proteins (Cascade-Cas3, type I; Csm or Cmr, type III) to target and cleave invading DNA or RNA. In type II systems, RNase III cleaves pre-crRNA base-paired with trans-activating crRNA (tracrRNA) in the presence of Cas9 (refs 13, 14). The mature tracrRNA-crRNA duplex then guides Cas9 to cleave target DNA. Here, we demonstrate a novel mechanism in CRISPR-Cas immunity. We show that type V-A Cpf1 from Francisella novicida is a dual-nuclease that is specific to crRNA biogenesis and target DNA interference. Cpf1 cleaves pre-crRNA upstream of a hairpin structure formed within the CRISPR repeats and thereby generates intermediate crRNAs that are processed further, leading to mature crRNAs. After recognition of a 5'-YTN-3' protospacer adjacent motif on the non-target DNA strand and subsequent probing for an eight-nucleotide seed sequence, Cpf1, guided by the single mature repeat-spacer crRNA, introduces double-stranded breaks in the target DNA to generate a 5' overhang. The RNase and DNase activities of Cpf1 require sequence- and structure-specific binding to the hairpin of crRNA repeats. Cpf1 uses distinct active domains for both nuclease reactions and cleaves nucleic acids in the presence of magnesium or calcium. This study uncovers a new family of enzymes with specific dual endoribonuclease and endonuclease activities, and demonstrates that type V-A constitutes the most minimalistic of the CRISPR-Cas systems so far described.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fonfara, Ines -- Richter, Hagen -- Bratovic, Majda -- Le Rhun, Anais -- Charpentier, Emmanuelle -- England -- Nature. 2016 Apr 28;532(7600):517-21. doi: 10.1038/nature17945. Epub 2016 Apr 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Laboratory for Molecular Infection Medicine Sweden (MIMS), Umea Centre for Microbial Research (UCMR), Department of Molecular Biology, Umea University, Umea 90187, Sweden. ; Helmholtz Centre for Infection Research, Department of Regulation in Infection Biology, Braunschweig 38124, Germany. ; Max Planck Institute for Infection Biology, Department of Regulation in Infection Biology, Berlin 10117, Germany. ; Hannover Medical School, Hannover 30625, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27096362" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Proteins/*metabolism ; Base Sequence ; CRISPR-Associated Proteins/*metabolism ; CRISPR-Cas Systems ; Calcium/metabolism/pharmacology ; Catalytic Domain ; Clustered Regularly Interspaced Short Palindromic Repeats/*genetics ; *DNA Cleavage/drug effects ; Francisella/enzymology ; Molecular Sequence Data ; Nucleic Acid Conformation ; RNA Precursors/chemistry/*genetics/*metabolism ; *RNA Processing, Post-Transcriptional ; RNA, Bacterial/chemistry/genetics/metabolism ; RNA, Guide/biosynthesis/chemistry/genetics/metabolism ; Substrate Specificity
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  • 46
    Publication Date: 2016-02-16
    Description: The vertebrate brain is highly complex, but its evolutionary origin remains elusive. Because of the absence of certain developmental domains generally marked by the expression of regulatory genes, the embryonic brain of the lamprey, a jawless vertebrate, had been regarded as representing a less complex, ancestral state of the vertebrate brain. Specifically, the absence of a Hedgehog- and Nkx2.1-positive domain in the lamprey subpallium was thought to be similar to mouse mutants in which the suppression of Nkx2-1 leads to a loss of the medial ganglionic eminence. Here we show that the brain of the inshore hagfish (Eptatretus burgeri), another cyclostome group, develops domains equivalent to the medial ganglionic eminence and rhombic lip, resembling the gnathostome brain. Moreover, further investigation of lamprey larvae revealed that these domains are also present, ruling out the possibility of convergent evolution between hagfish and gnathostomes. Thus, brain regionalization as seen in crown gnathostomes is not an evolutionary innovation of this group, but dates back to the latest vertebrate ancestor before the divergence of cyclostomes and gnathostomes more than 500 million years ago.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sugahara, Fumiaki -- Pascual-Anaya, Juan -- Oisi, Yasuhiro -- Kuraku, Shigehiro -- Aota, Shin-ichi -- Adachi, Noritaka -- Takagi, Wataru -- Hirai, Tamami -- Sato, Noboru -- Murakami, Yasunori -- Kuratani, Shigeru -- England -- Nature. 2016 Mar 3;531(7592):97-100. doi: 10.1038/nature16518. Epub 2016 Feb 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Evolutionary Morphology Laboratory, RIKEN, Kobe 650-0047, Japan. ; Division of Biology, Hyogo College of Medicine, Nishinomiya 663-8501, Japan. ; Development and Function of Inhibitory Neural Circuits, Max Planck Florida Institute for Neuroscience, Jupiter, Florida 33458, USA. ; Phyloinformatics Unit, RIKEN Center for Life Science Technologies, Kobe 650-0047, Japan. ; Department of Organismal Biology and Anatomy, University of Chicago, Chicago, Illinois 60637, USA. ; Division of Gross Anatomy and Morphogenesis, Niigata University Graduate School of Medical and Dental Sciences, Niigata 950-8510, Japan. ; Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26878236" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*anatomy & histology/*embryology ; Female ; Hagfishes/*anatomy & histology/*embryology/genetics ; Humans ; Lampreys/*anatomy & histology/*embryology/genetics/growth & development ; Larva/anatomy & histology ; Male ; Mice ; Molecular Sequence Data ; *Phylogeny ; Synteny/genetics
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  • 47
    Publication Date: 2016-03-05
    Description: Identifying key molecules that launch regeneration has been a long-sought goal. Multiple regenerative animals show an initial wound-associated proliferative response that transits into sustained proliferation if a considerable portion of the body part has been removed. In the axolotl, appendage amputation initiates a round of wound-associated cell cycle induction followed by continued proliferation that is dependent on nerve-derived signals. A wound-associated molecule that triggers the initial proliferative response to launch regeneration has remained obscure. Here, using an expression cloning strategy followed by in vivo gain- and loss-of-function assays, we identified axolotl MARCKS-like protein (MLP) as an extracellularly released factor that induces the initial cell cycle response during axolotl appendage regeneration. The identification of a regeneration-initiating molecule opens the possibility of understanding how to elicit regeneration in other animals.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4795554/" 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/PMC4795554/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sugiura, Takuji -- Wang, Heng -- Barsacchi, Rico -- Simon, Andras -- Tanaka, Elly M -- England -- Nature. 2016 Mar 10;531(7593):237-40. doi: 10.1038/nature16974.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉DFG Research Center for Regenerative Therapies (CRTD), Technische Universitat Dresden, Fetscherstrasse 105, 01307 Dresden, Germany. ; Max Planck Institute for Molecular Cell Biology and Genetics, Pfotenhauerstrasse 108, 01307 Dresden, Germany. ; Karolinska Institute, Department of Cell and Molecular Biology, Centre of Developmental Biology for Regenerative Medicine, SE-171 77 Stockholm, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26934225" target="_blank"〉PubMed〈/a〉
    Keywords: Ambystoma mexicanum/injuries/*physiology ; Amputation, Traumatic/metabolism ; Animals ; Cell Cycle/genetics ; Cell Proliferation/genetics ; Cloning, Molecular ; Extremities/injuries/*physiology ; Humans ; Intracellular Signaling Peptides and Proteins/genetics/*metabolism/secretion ; Membrane Proteins/genetics/*metabolism/secretion ; Mice ; Molecular Sequence Data ; Muscle Fibers, Skeletal/cytology/physiology ; Notophthalmus viridescens/genetics/injuries/physiology ; Regeneration/*physiology ; Tail/cytology/injuries/physiology ; Wound Healing/physiology ; Xenopus ; Zebrafish
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  • 48
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-09-09
    Description: Author: Jake Yeston
    Keywords: Inorganic Chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 49
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    American Association for the Advancement of Science (AAAS)
    In: Science
    Publication Date: 2016-11-11
    Description: Author: Jake Yeston
    Keywords: Inorganic Chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 50
    Publication Date: 2015-07-02
    Description: Multicellularity is often considered a prerequisite for morphological complexity, as seen in the camera-type eyes found in several groups of animals. A notable exception exists in single-celled eukaryotes called dinoflagellates, some of which have an eye-like 'ocelloid' consisting of subcellular analogues to a cornea, lens, iris, and retina. These planktonic cells are uncultivated and rarely encountered in environmental samples, obscuring the function and evolutionary origin of the ocelloid. Here we show, using a combination of electron microscopy, tomography, isolated-organelle genomics, and single-cell genomics, that ocelloids are built from pre-existing organelles, including a cornea-like layer made of mitochondria and a retinal body made of anastomosing plastids. We find that the retinal body forms the central core of a network of peridinin-type plastids, which in dinoflagellates and their relatives originated through an ancient endosymbiosis with a red alga. As such, the ocelloid is a chimaeric structure, incorporating organelles with different endosymbiotic histories. The anatomical complexity of single-celled organisms may be limited by the components available for differentiation, but the ocelloid shows that pre-existing organelles can be assembled into a structure so complex that it was initially mistaken for a multicellular eye. Although mitochondria and plastids are acknowledged chiefly for their metabolic roles, they can also be building blocks for greater structural complexity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gavelis, Gregory S -- Hayakawa, Shiho -- White, Richard A 3rd -- Gojobori, Takashi -- Suttle, Curtis A -- Keeling, Patrick J -- Leander, Brian S -- England -- Nature. 2015 Jul 9;523(7559):204-7. doi: 10.1038/nature14593. Epub 2015 Jul 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada. ; 1] Department of Zoology, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada [2] Department of Botany, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada [3] Center for Information Biology, National Institute of Genetics, Mishima, Shizuoka 411-8540, Japan. ; Department of Microbiology and Immunology, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada. ; 1] Center for Information Biology, National Institute of Genetics, Mishima, Shizuoka 411-8540, Japan [2] Computational Bioscience Research Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia. ; 1] Department of Botany, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada [2] Department of Microbiology and Immunology, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada [3] Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada [4] Canadian Institute for Advanced Research, Toronto, Ontario M5G 1Z8, Canada. ; 1] Department of Botany, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada [2] Canadian Institute for Advanced Research, Toronto, Ontario M5G 1Z8, Canada. ; 1] Department of Zoology, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada [2] Department of Botany, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada [3] Canadian Institute for Advanced Research, Toronto, Ontario M5G 1Z8, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26131935" target="_blank"〉PubMed〈/a〉
    Keywords: Dinoflagellida/*genetics/physiology/*ultrastructure ; Genome, Protozoan/genetics ; Microscopy, Electron, Scanning ; Microscopy, Electron, Transmission ; Mitochondria/metabolism/ultrastructure ; Molecular Sequence Data ; Plastids/metabolism/ultrastructure ; Protozoan Proteins/genetics ; Rhodophyta/genetics ; *Symbiosis
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  • 51
    Publication Date: 2015-07-15
    Description: Surface polysaccharides are important for bacterial interactions with multicellular organisms, and some are virulence factors in pathogens. In the legume-rhizobium symbiosis, bacterial exopolysaccharides (EPS) are essential for the development of infected root nodules. We have identified a gene in Lotus japonicus, Epr3, encoding a receptor-like kinase that controls this infection. We show that epr3 mutants are defective in perception of purified EPS, and that EPR3 binds EPS directly and distinguishes compatible and incompatible EPS in bacterial competition studies. Expression of Epr3 in epidermal cells within the susceptible root zone shows that the protein is involved in bacterial entry, while rhizobial and plant mutant studies suggest that Epr3 regulates bacterial passage through the plant's epidermal cell layer. Finally, we show that Epr3 expression is inducible and dependent on host perception of bacterial nodulation (Nod) factors. Plant-bacterial compatibility and bacterial access to legume roots is thus regulated by a two-stage mechanism involving sequential receptor-mediated recognition of Nod factor and EPS signals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kawaharada, Y -- Kelly, S -- Nielsen, M Wibroe -- Hjuler, C T -- Gysel, K -- Muszynski, A -- Carlson, R W -- Thygesen, M B -- Sandal, N -- Asmussen, M H -- Vinther, M -- Andersen, S U -- Krusell, L -- Thirup, S -- Jensen, K J -- Ronson, C W -- Blaise, M -- Radutoiu, S -- Stougaard, J -- England -- Nature. 2015 Jul 16;523(7560):308-12. doi: 10.1038/nature14611. Epub 2015 Jul 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Centre for Carbohydrate Recognition and Signalling. Aarhus University, Aarhus 8000 C, Denmark [2] Department of Molecular Biology and Genetics, Aarhus University, Aarhus 8000 C, Denmark. ; 1] Centre for Carbohydrate Recognition and Signalling. Aarhus University, Aarhus 8000 C, Denmark [2] Department of Molecular Biology and Genetics, Aarhus University, Aarhus 8000 C, Denmark [3] Department of Microbiology and Immunology, University of Otago, Dunedin 9054, New Zealand. ; 1] Centre for Carbohydrate Recognition and Signalling. Aarhus University, Aarhus 8000 C, Denmark [2] Department of Chemistry, University of Copenhagen, Frederiksberg 1871 C, Denmark. ; Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia 30602, USA. ; 1] Centre for Carbohydrate Recognition and Signalling. Aarhus University, Aarhus 8000 C, Denmark [2] Department of Microbiology and Immunology, University of Otago, Dunedin 9054, New Zealand.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26153863" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Carbohydrate Sequence ; Lipopolysaccharides/chemistry/*metabolism ; Lotus/genetics/*metabolism/*microbiology ; Molecular Sequence Data ; Mutation/genetics ; Phenotype ; Plant Epidermis/metabolism/microbiology ; Plant Proteins/chemistry/genetics/*metabolism ; Plant Root Nodulation ; Protein Kinases/chemistry/genetics/metabolism ; Protein Structure, Tertiary ; Receptors, Cell Surface/chemistry/genetics/*metabolism ; Rhizobium/*metabolism ; Root Nodules, Plant/metabolism/microbiology ; Signal Transduction ; Species Specificity ; Suppression, Genetic/genetics ; *Symbiosis
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  • 52
    Publication Date: 2015-03-25
    Description: Wing polyphenism is an evolutionarily successful feature found in a wide range of insects. Long-winged morphs can fly, which allows them to escape adverse habitats and track changing resources, whereas short-winged morphs are flightless, but usually possess higher fecundity than the winged morphs. Studies on aphids, crickets and planthoppers have revealed that alternative wing morphs develop in response to various environmental cues, and that the response to these cues may be mediated by developmental hormones, although research in this area has yielded equivocal and conflicting results about exactly which hormones are involved. As it stands, the molecular mechanism underlying wing morph determination in insects has remained elusive. Here we show that two insulin receptors in the migratory brown planthopper Nilaparvata lugens, InR1 and InR2, have opposing roles in controlling long wing versus short wing development by regulating the activity of the forkhead transcription factor Foxo. InR1, acting via the phosphatidylinositol-3-OH kinase (PI(3)K)-protein kinase B (Akt) signalling cascade, leads to the long-winged morph if active and the short-winged morph if inactive. InR2, by contrast, functions as a negative regulator of the InR1-PI(3)K-Akt pathway: suppression of InR2 results in development of the long-winged morph. The brain-secreted ligand Ilp3 triggers development of long-winged morphs. Our findings provide the first evidence of a molecular basis for the regulation of wing polyphenism in insects, and they are also the first demonstration--to our knowledge--of binary control over alternative developmental outcomes, and thus deepen our understanding of the development and evolution of phenotypic plasticity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xu, Hai-Jun -- Xue, Jian -- Lu, Bo -- Zhang, Xue-Chao -- Zhuo, Ji-Chong -- He, Shu-Fang -- Ma, Xiao-Fang -- Jiang, Ya-Qin -- Fan, Hai-Wei -- Xu, Ji-Yu -- Ye, Yu-Xuan -- Pan, Peng-Lu -- Li, Qiao -- Bao, Yan-Yuan -- Nijhout, H Frederik -- Zhang, Chuan-Xi -- England -- Nature. 2015 Mar 26;519(7544):464-7. doi: 10.1038/nature14286. Epub 2015 Mar 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Agricultural Entomology, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China. ; Department of Biology, Duke University, Durham, North Carolina 27708, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25799997" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; Forkhead Transcription Factors/deficiency/metabolism ; Hemiptera/*anatomy & histology/enzymology/genetics/*metabolism ; Insulin/metabolism ; Male ; Molecular Sequence Data ; Phosphatidylinositol 3-Kinases/metabolism ; Proto-Oncogene Proteins c-akt/metabolism ; Receptor, Insulin/deficiency/*metabolism ; Signal Transduction ; Wings, Animal/anatomy & histology/enzymology/*growth & development/*metabolism
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  • 53
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    Nature Publishing Group (NPG)
    Publication Date: 2015-12-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibney, Elizabeth -- England -- Nature. 2015 Dec 3;528(7580):26-8. doi: 10.1038/528026a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26632572" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bioengineering/instrumentation/methods ; Clothing ; *Early Diagnosis ; Electronics/*instrumentation ; *Equipment Design ; Humans ; Monitoring, Physiologic/*instrumentation/*methods ; Myocardial Infarction/diagnosis/drug therapy/prevention & control ; Rats ; Seizures/diagnosis/drug therapy/prevention & control ; *Transdermal Patch
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  • 54
    Publication Date: 2015-11-10
    Description: Gene expression is regulated by transcription factors (TFs), proteins that recognize short DNA sequence motifs. Such sequences are very common in the human genome, and an important determinant of the specificity of gene expression is the cooperative binding of multiple TFs to closely located motifs. However, interactions between DNA-bound TFs have not been systematically characterized. To identify TF pairs that bind cooperatively to DNA, and to characterize their spacing and orientation preferences, we have performed consecutive affinity-purification systematic evolution of ligands by exponential enrichment (CAP-SELEX) analysis of 9,400 TF-TF-DNA interactions. This analysis revealed 315 TF-TF interactions recognizing 618 heterodimeric motifs, most of which have not been previously described. The observed cooperativity occurred promiscuously between TFs from diverse structural families. Structural analysis of the TF pairs, including a novel crystal structure of MEIS1 and DLX3 bound to their identified recognition site, revealed that the interactions between the TFs were predominantly mediated by DNA. Most TF pair sites identified involved a large overlap between individual TF recognition motifs, and resulted in recognition of composite sites that were markedly different from the individual TF's motifs. Together, our results indicate that the DNA molecule commonly plays an active role in cooperative interactions that define the gene regulatory lexicon.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jolma, Arttu -- Yin, Yimeng -- Nitta, Kazuhiro R -- Dave, Kashyap -- Popov, Alexander -- Taipale, Minna -- Enge, Martin -- Kivioja, Teemu -- Morgunova, Ekaterina -- Taipale, Jussi -- England -- Nature. 2015 Nov 19;527(7578):384-8. doi: 10.1038/nature15518. Epub 2015 Nov 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biosciences and Nutrition, Karolinska Institutet, SE 141 83, Sweden. ; European Synchrotron Radiation Facility, 38043 Grenoble, France. ; Genome-Scale Biology Program, University of Helsinki, P.O. Box 63, FI-00014, Finland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26550823" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Binding Sites/genetics ; Crystallography, X-Ray ; DNA/*genetics/*metabolism ; Gene Expression Regulation/genetics ; Humans ; Molecular Sequence Data ; Nucleotide Motifs/genetics ; Reproducibility of Results ; *Substrate Specificity/genetics ; Transcription Factors/*metabolism
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  • 55
    Publication Date: 2015-09-10
    Description: Somaclonal variation arises in plants and animals when differentiated somatic cells are induced into a pluripotent state, but the resulting clones differ from each other and from their parents. In agriculture, somaclonal variation has hindered the micropropagation of elite hybrids and genetically modified crops, but the mechanism responsible remains unknown. The oil palm fruit 'mantled' abnormality is a somaclonal variant arising from tissue culture that drastically reduces yield, and has largely halted efforts to clone elite hybrids for oil production. Widely regarded as an epigenetic phenomenon, 'mantling' has defied explanation, but here we identify the MANTLED locus using epigenome-wide association studies of the African oil palm Elaeis guineensis. DNA hypomethylation of a LINE retrotransposon related to rice Karma, in the intron of the homeotic gene DEFICIENS, is common to all mantled clones and is associated with alternative splicing and premature termination. Dense methylation near the Karma splice site (termed the Good Karma epiallele) predicts normal fruit set, whereas hypomethylation (the Bad Karma epiallele) predicts homeotic transformation, parthenocarpy and marked loss of yield. Loss of Karma methylation and of small RNA in tissue culture contributes to the origin of mantled, while restoration in spontaneous revertants accounts for non-Mendelian inheritance. The ability to predict and cull mantling at the plantlet stage will facilitate the introduction of higher performing clones and optimize environmentally sensitive land resources.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ong-Abdullah, Meilina -- Ordway, Jared M -- Jiang, Nan -- Ooi, Siew-Eng -- Kok, Sau-Yee -- Sarpan, Norashikin -- Azimi, Nuraziyan -- Hashim, Ahmad Tarmizi -- Ishak, Zamzuri -- Rosli, Samsul Kamal -- Malike, Fadila Ahmad -- Bakar, Nor Azwani Abu -- Marjuni, Marhalil -- Abdullah, Norziha -- Yaakub, Zulkifli -- Amiruddin, Mohd Din -- Nookiah, Rajanaidu -- Singh, Rajinder -- Low, Eng-Ti Leslie -- Chan, Kuang-Lim -- Azizi, Norazah -- Smith, Steven W -- Bacher, Blaire -- Budiman, Muhammad A -- Van Brunt, Andrew -- Wischmeyer, Corey -- Beil, Melissa -- Hogan, Michael -- Lakey, Nathan -- Lim, Chin-Ching -- Arulandoo, Xaviar -- Wong, Choo-Kien -- Choo, Chin-Nee -- Wong, Wei-Chee -- Kwan, Yen-Yen -- Alwee, Sharifah Shahrul Rabiah Syed -- Sambanthamurthi, Ravigadevi -- Martienssen, Robert A -- R01 GM067014/GM/NIGMS NIH HHS/ -- England -- Nature. 2015 Sep 24;525(7570):533-7. doi: 10.1038/nature15365. Epub 2015 Sep 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia. ; Orion Genomics, 4041 Forest Park Avenue, St Louis, Missouri 63108, USA. ; United Plantations Berhad, Jendarata Estate, 36009 Teluk Intan, Perak, Malaysia. ; Applied Agricultural Resources Sdn Bhd, No. 11, Jalan Teknologi 3/6, Taman Sains Selangor 1, 47810 Kota Damansara, Petaling Jaya, Selangor, Malaysia. ; FELDA Global Ventures R&D Sdn Bhd, c/o FELDA Biotechnology Centre, PT 23417, Lengkuk Teknologi, 71760 Bandar Enstek, Negeri Sembilan, Malaysia. ; Howard Hughes Medical Institute-Gordon and Betty Moore Foundation, Cold Spring Harbor Laboratory, Cold Spring Harbor, New York 11724, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26352475" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Alternative Splicing/genetics ; Arecaceae/*genetics/metabolism ; *DNA Methylation ; Epigenesis, Genetic/*genetics ; *Epigenomics ; Fruit/genetics ; Genes, Homeobox/genetics ; Genetic Association Studies ; Genome, Plant/*genetics ; Introns/genetics ; Molecular Sequence Data ; *Phenotype ; Plant Oils/analysis/metabolism ; RNA Splice Sites/genetics ; RNA, Small Interfering/genetics ; Retroelements/*genetics
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  • 56
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    Nature Publishing Group (NPG)
    Publication Date: 2015-05-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cyranoski, David -- England -- Nature. 2015 May 28;521(7553):406-7. doi: 10.1038/nature.2015.17605.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26017424" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Bioartificial Organs ; Esophagus/surgery ; Humans ; Rats ; Research Personnel/*ethics ; *Scientific Misconduct/legislation & jurisprudence ; Stem Cell Transplantation/ethics ; Surgeons/*ethics ; Sweden ; Trachea/*surgery
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  • 57
    Publication Date: 2015-08-11
    Description: G-protein-coupled receptors (GPCRs) constitute the largest family of membrane receptors in eukaryotes. Crystal structures have provided insight into GPCR interactions with ligands and G proteins, but our understanding of the conformational dynamics of activation is incomplete. Metabotropic glutamate receptors (mGluRs) are dimeric class C GPCRs that modulate neuronal excitability, synaptic plasticity, and serve as drug targets for neurological disorders. A 'clamshell' ligand-binding domain (LBD), which contains the ligand-binding site, is coupled to the transmembrane domain via a cysteine-rich domain, and LBD closure seems to be the first step in activation. Crystal structures of isolated mGluR LBD dimers led to the suggestion that activation also involves a reorientation of the dimer interface from a 'relaxed' to an 'active' state, but the relationship between ligand binding, LBD closure and dimer interface rearrangement in activation remains unclear. Here we use single-molecule fluorescence resonance energy transfer to probe the activation mechanism of full-length mammalian group II mGluRs. We show that the LBDs interconvert between three conformations: resting, activated and a short-lived intermediate state. Orthosteric agonists induce transitions between these conformational states, with efficacy determined by occupancy of the active conformation. Unlike mGluR2, mGluR3 displays basal dynamics, which are Ca(2+)-dependent and lead to basal protein activation. Our results support a general mechanism for the activation of mGluRs in which agonist binding induces closure of the LBDs, followed by dimer interface reorientation. Our experimental strategy should be widely applicable to study conformational dynamics in GPCRs and other membrane proteins.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4597782/" 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/PMC4597782/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vafabakhsh, Reza -- Levitz, Joshua -- Isacoff, Ehud Y -- 2PN2EY018241/EY/NEI NIH HHS/ -- PN2 EY018241/EY/NEI NIH HHS/ -- England -- Nature. 2015 Aug 27;524(7566):497-501. doi: 10.1038/nature14679. Epub 2015 Aug 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cell Biology, University of California, Berkeley, California 94720, USA. ; Helen Wills Neuroscience Institute, University of California, Berkeley, California 94720, USA. ; Physical Bioscience Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26258295" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Drug Partial Agonism ; *Fluorescence Resonance Energy Transfer ; Humans ; Ligands ; Models, Biological ; Models, Molecular ; Protein Binding ; Protein Conformation ; Rats ; Receptors, Metabotropic Glutamate/*chemistry/*classification/genetics/metabolism
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  • 58
    Publication Date: 2015-01-07
    Description: Proper positioning of organelles by cytoskeleton-based motor proteins underlies cellular events such as signalling, polarization and growth. For many organelles, however, the precise connection between position and function has remained unclear, because strategies to control intracellular organelle positioning with spatiotemporal precision are lacking. Here we establish optical control of intracellular transport by using light-sensitive heterodimerization to recruit specific cytoskeletal motor proteins (kinesin, dynein or myosin) to selected cargoes. We demonstrate that the motility of peroxisomes, recycling endosomes and mitochondria can be locally and repeatedly induced or stopped, allowing rapid organelle repositioning. We applied this approach in primary rat hippocampal neurons to test how local positioning of recycling endosomes contributes to axon outgrowth and found that dynein-driven removal of endosomes from axonal growth cones reversibly suppressed axon growth, whereas kinesin-driven endosome enrichment enhanced growth. Our strategy for optogenetic control of organelle positioning will be widely applicable to explore site-specific organelle functions in different model systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉van Bergeijk, Petra -- Adrian, Max -- Hoogenraad, Casper C -- Kapitein, Lukas C -- England -- Nature. 2015 Feb 5;518(7537):111-4. doi: 10.1038/nature14128. Epub 2015 Jan 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cell Biology, Department of Biology, Faculty of Science, Utrecht University, 3584 CH Utrecht, The Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25561173" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/physiology/radiation effects ; Biological Transport/radiation effects ; Cell Compartmentation/*physiology/radiation effects ; Cells, Cultured ; Cytoskeleton/metabolism/radiation effects ; Dendritic Spines/metabolism/radiation effects ; Dyneins/metabolism/radiation effects ; Endosomes/*metabolism/radiation effects ; Hippocampus/cytology ; Intracellular Space/metabolism/radiation effects ; Kinesin/metabolism/radiation effects ; Microtubules/metabolism/radiation effects ; Mitochondria/*metabolism/radiation effects ; Myosin Type V/metabolism/radiation effects ; Optogenetics/*methods ; Peroxisomes/*metabolism/radiation effects ; Rats
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  • 59
    Publication Date: 2015-06-11
    Description: Misfolded protein aggregates represent a continuum with overlapping features in neurodegenerative diseases, but differences in protein components and affected brain regions. The molecular hallmark of synucleinopathies such as Parkinson's disease, dementia with Lewy bodies and multiple system atrophy are megadalton alpha-synuclein-rich deposits suggestive of one molecular event causing distinct disease phenotypes. Glial alpha-synuclein (alpha-SYN) filamentous deposits are prominent in multiple system atrophy and neuronal alpha-SYN inclusions are found in Parkinson's disease and dementia with Lewy bodies. The discovery of alpha-SYN assemblies with different structural characteristics or 'strains' has led to the hypothesis that strains could account for the different clinico-pathological traits within synucleinopathies. In this study we show that alpha-SYN strain conformation and seeding propensity lead to distinct histopathological and behavioural phenotypes. We assess the properties of structurally well-defined alpha-SYN assemblies (oligomers, ribbons and fibrils) after injection in rat brain. We prove that alpha-SYN strains amplify in vivo. Fibrils seem to be the major toxic strain, resulting in progressive motor impairment and cell death, whereas ribbons cause a distinct histopathological phenotype displaying Parkinson's disease and multiple system atrophy traits. Additionally, we show that alpha-SYN assemblies cross the blood-brain barrier and distribute to the central nervous system after intravenous injection. Our results demonstrate that distinct alpha-SYN strains display differential seeding capacities, inducing strain-specific pathology and neurotoxic phenotypes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peelaerts, W -- Bousset, L -- Van der Perren, A -- Moskalyuk, A -- Pulizzi, R -- Giugliano, M -- Van den Haute, C -- Melki, R -- Baekelandt, V -- England -- Nature. 2015 Jun 18;522(7556):340-4. doi: 10.1038/nature14547. Epub 2015 Jun 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉KU Leuven, Laboratory for Neurobiology and Gene Therapy, Department of Neurosciences, 3000 Leuven, Belgium. ; Paris-Saclay Institute of Neuroscience, CNRS, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France. ; Theoretical Neurobiology &Neuroengineering Laboratory, Department of Biomedical Sciences, University of Antwerp, 2610 Antwerp, Belgium. ; 1] Theoretical Neurobiology &Neuroengineering Laboratory, Department of Biomedical Sciences, University of Antwerp, 2610 Antwerp, Belgium [2] Department of Computer Science, University of Sheffield, S1 4DP Sheffield, UK [3] Brain Mind Institute, Swiss Federal Institute of Technology of Lausanne, 1015 Lausanne, Switzerland [4] Neuro-Electronics Research Flanders (NERF), 3001 Leuven, Belgium. ; 1] KU Leuven, Laboratory for Neurobiology and Gene Therapy, Department of Neurosciences, 3000 Leuven, Belgium [2] KU Leuven, Leuven Viral Vector Core, 3000 Leuven, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26061766" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood-Brain Barrier ; Brain/drug effects/metabolism ; Female ; Humans ; Lewy Body Disease/*chemically induced/metabolism/pathology ; Multiple System Atrophy/*chemically induced/metabolism/pathology ; Parkinson Disease/metabolism/*pathology ; Phenotype ; Rats ; Rats, Wistar ; Substantia Nigra/drug effects/metabolism/pathology ; Synapses/metabolism/pathology ; alpha-Synuclein/*administration & dosage/chemistry/classification/*toxicity
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  • 60
    Publication Date: 2015-07-23
    Description: The human lens is comprised largely of crystallin proteins assembled into a highly ordered, interactive macro-structure essential for lens transparency and refractive index. Any disruption of intra- or inter-protein interactions will alter this delicate structure, exposing hydrophobic surfaces, with consequent protein aggregation and cataract formation. Cataracts are the most common cause of blindness worldwide, affecting tens of millions of people, and currently the only treatment is surgical removal of cataractous lenses. The precise mechanisms by which lens proteins both prevent aggregation and maintain lens transparency are largely unknown. Lanosterol is an amphipathic molecule enriched in the lens. It is synthesized by lanosterol synthase (LSS) in a key cyclization reaction of a cholesterol synthesis pathway. Here we identify two distinct homozygous LSS missense mutations (W581R and G588S) in two families with extensive congenital cataracts. Both of these mutations affect highly conserved amino acid residues and impair key catalytic functions of LSS. Engineered expression of wild-type, but not mutant, LSS prevents intracellular protein aggregation of various cataract-causing mutant crystallins. Treatment by lanosterol, but not cholesterol, significantly decreased preformed protein aggregates both in vitro and in cell-transfection experiments. We further show that lanosterol treatment could reduce cataract severity and increase transparency in dissected rabbit cataractous lenses in vitro and cataract severity in vivo in dogs. Our study identifies lanosterol as a key molecule in the prevention of lens protein aggregation and points to a novel strategy for cataract prevention and treatment.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhao, Ling -- Chen, Xiang-Jun -- Zhu, Jie -- Xi, Yi-Bo -- Yang, Xu -- Hu, Li-Dan -- Ouyang, Hong -- Patel, Sherrina H -- Jin, Xin -- Lin, Danni -- Wu, Frances -- Flagg, Ken -- Cai, Huimin -- Li, Gen -- Cao, Guiqun -- Lin, Ying -- Chen, Daniel -- Wen, Cindy -- Chung, Christopher -- Wang, Yandong -- Qiu, Austin -- Yeh, Emily -- Wang, Wenqiu -- Hu, Xun -- Grob, Seanna -- Abagyan, Ruben -- Su, Zhiguang -- Tjondro, Harry Christianto -- Zhao, Xi-Juan -- Luo, Hongrong -- Hou, Rui -- Perry, J Jefferson P -- Gao, Weiwei -- Kozak, Igor -- Granet, David -- Li, Yingrui -- Sun, Xiaodong -- Wang, Jun -- Zhang, Liangfang -- Liu, Yizhi -- Yan, Yong-Bin -- Zhang, Kang -- England -- Nature. 2015 Jul 30;523(7562):607-11. doi: 10.1038/nature14650. Epub 2015 Jul 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China [2] State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China [3] Department of Ophthalmology and Biomaterials and Tissue Engineering Center, Institute for Engineering in Medicine, University of California San Diego, La Jolla, California 92093, USA. ; State Key Laboratory of Membrane Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China. ; 1] Department of Ophthalmology and Biomaterials and Tissue Engineering Center, Institute for Engineering in Medicine, University of California San Diego, La Jolla, California 92093, USA [2] Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China. ; BGI-Shenzhen, Shenzhen 518083, China. ; 1] State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China [2] Department of Ophthalmology and Biomaterials and Tissue Engineering Center, Institute for Engineering in Medicine, University of California San Diego, La Jolla, California 92093, USA. ; Department of Ophthalmology and Biomaterials and Tissue Engineering Center, Institute for Engineering in Medicine, University of California San Diego, La Jolla, California 92093, USA. ; 1] Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China [2] Guangzhou KangRui Biological Pharmaceutical Technology Company, Guangzhou 510005, China. ; Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China. ; State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China. ; 1] Department of Ophthalmology and Biomaterials and Tissue Engineering Center, Institute for Engineering in Medicine, University of California San Diego, La Jolla, California 92093, USA [2] CapitalBio Genomics Co., Ltd., Dongguan 523808, China. ; 1] Department of Ophthalmology and Biomaterials and Tissue Engineering Center, Institute for Engineering in Medicine, University of California San Diego, La Jolla, California 92093, USA [2] Department of Ophthalmology, Shanghai First People's Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai 20080, China. ; Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, USA. ; Guangzhou KangRui Biological Pharmaceutical Technology Company, Guangzhou 510005, China. ; Department of Biochemistry, University of California Riverside, Riverside, California 92521, USA. ; 1] Department of Ophthalmology and Biomaterials and Tissue Engineering Center, Institute for Engineering in Medicine, University of California San Diego, La Jolla, California 92093, USA [2] Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, USA. ; King Khaled Eye Specialist Hospital, Riyadh, Kingdom of Saudi Arabia. ; Department of Ophthalmology, Shanghai First People's Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai 20080, China. ; Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China. ; 1] Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China [2] State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China [3] Department of Ophthalmology and Biomaterials and Tissue Engineering Center, Institute for Engineering in Medicine, University of California San Diego, La Jolla, California 92093, USA [4] Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, USA [5] Veterans Administration Healthcare System, San Diego, California 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26200341" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Amino Acid Sequence ; Amyloid/chemistry/drug effects/metabolism/ultrastructure ; Animals ; Base Sequence ; Cataract/congenital/*drug therapy/genetics/*metabolism/pathology ; Cell Line ; Child ; Crystallins/chemistry/genetics/metabolism/ultrastructure ; Dogs ; Female ; Humans ; Lanosterol/administration & dosage/*pharmacology/*therapeutic use ; Lens, Crystalline/drug effects/metabolism/pathology ; Male ; Models, Molecular ; Molecular Sequence Data ; Mutant Proteins/chemistry/genetics/metabolism/ultrastructure ; Pedigree ; Protein Aggregates/*drug effects ; Protein Aggregation, Pathological/*drug therapy/pathology
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  • 61
    Publication Date: 2015-08-11
    Description: The typical response of the adult mammalian pulmonary circulation to a low oxygen environment is vasoconstriction and structural remodelling of pulmonary arterioles, leading to chronic elevation of pulmonary artery pressure (pulmonary hypertension) and right ventricular hypertrophy. Some mammals, however, exhibit genetic resistance to hypoxia-induced pulmonary hypertension. We used a congenic breeding program and comparative genomics to exploit this variation in the rat and identified the gene Slc39a12 as a major regulator of hypoxia-induced pulmonary vascular remodelling. Slc39a12 encodes the zinc transporter ZIP12. Here we report that ZIP12 expression is increased in many cell types, including endothelial, smooth muscle and interstitial cells, in the remodelled pulmonary arterioles of rats, cows and humans susceptible to hypoxia-induced pulmonary hypertension. We show that ZIP12 expression in pulmonary vascular smooth muscle cells is hypoxia dependent and that targeted inhibition of ZIP12 inhibits the rise in intracellular labile zinc in hypoxia-exposed pulmonary vascular smooth muscle cells and their proliferation in culture. We demonstrate that genetic disruption of ZIP12 expression attenuates the development of pulmonary hypertension in rats housed in a hypoxic atmosphere. This new and unexpected insight into the fundamental role of a zinc transporter in mammalian pulmonary vascular homeostasis suggests a new drug target for the pharmacological management of pulmonary hypertension.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhao, Lan -- Oliver, Eduardo -- Maratou, Klio -- Atanur, Santosh S -- Dubois, Olivier D -- Cotroneo, Emanuele -- Chen, Chien-Nien -- Wang, Lei -- Arce, Cristina -- Chabosseau, Pauline L -- Ponsa-Cobas, Joan -- Frid, Maria G -- Moyon, Benjamin -- Webster, Zoe -- Aldashev, Almaz -- Ferrer, Jorge -- Rutter, Guy A -- Stenmark, Kurt R -- Aitman, Timothy J -- Wilkins, Martin R -- 098424/Wellcome Trust/United Kingdom -- 101033/Wellcome Trust/United Kingdom -- MR/J0003042/1/Medical Research Council/United Kingdom -- P01 HL014985/HL/NHLBI NIH HHS/ -- PG/04/035/16912/British Heart Foundation/United Kingdom -- PG/10/59/28478/British Heart Foundation/United Kingdom -- PG/12/61/29818/British Heart Foundation/United Kingdom -- PG/2000137/British Heart Foundation/United Kingdom -- PG/95170/British Heart Foundation/United Kingdom -- PG/98018/British Heart Foundation/United Kingdom -- RG/10/16/28575/British Heart Foundation/United Kingdom -- WT098424AIA/Wellcome Trust/United Kingdom -- England -- Nature. 2015 Aug 20;524(7565):356-60. doi: 10.1038/nature14620. Epub 2015 Aug 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Pharmacology and Therapeutics, Division of Experimental Medicine, Imperial College London, Hammersmith Hospital, London W12 0NN, UK. ; Physiological Genomics and Medicine Group, Medical Research Council Clinical Sciences Centre, Hammersmith Hospital, London W12 0NN, UK. ; Section of Epigenomics and Disease, Department of Medicine, Faculty of Medicine, Imperial College London, Hammersmith Hospital, London W12 0NN, UK. ; Department of Pediatrics and Medicine, Division of Critical Care Medicine and Cardiovascular Pulmonary Research Laboratories, University of Colorado Denver, Denver, Colorado 80045, USA. ; Transgenics and Embryonic Stem Cell Laboratory, Medical Research Council Clinical Sciences Centre, Hammersmith Hospital, London W12 0NN, UK. ; Institute of Molecular Biology and Medicine, 3 Togolok Moldo Street, Bishkek 720040, Kyrgyzstan. ; Section of Cell Biology and Functional Genomics, Division of Diabetes, Endocrinology and Metabolism, Imperial College London, Hammersmith Hospital, London W12 0NN, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26258299" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Congenic ; Anoxia/genetics/*metabolism ; Arterioles/metabolism ; Cation Transport Proteins/deficiency/genetics/*metabolism ; Cattle ; Cell Hypoxia ; Cell Proliferation ; Cells, Cultured ; Chromosomes, Mammalian/genetics ; Chronic Disease ; Female ; Gene Knockdown Techniques ; Homeostasis ; Humans ; Hypertension, Pulmonary/genetics/*metabolism ; Intracellular Space/metabolism ; Male ; Muscle, Smooth, Vascular/cytology/*metabolism ; Rats ; Rats, Inbred F344 ; Rats, Inbred WKY ; Zinc/metabolism
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  • 62
    Publication Date: 2015-01-13
    Description: Evolutionarily conserved SNARE (soluble N-ethylmaleimide sensitive factor attachment protein receptors) proteins form a complex that drives membrane fusion in eukaryotes. The ATPase NSF (N-ethylmaleimide sensitive factor), together with SNAPs (soluble NSF attachment protein), disassembles the SNARE complex into its protein components, making individual SNAREs available for subsequent rounds of fusion. Here we report structures of ATP- and ADP-bound NSF, and the NSF/SNAP/SNARE (20S) supercomplex determined by single-particle electron cryomicroscopy at near-atomic to sub-nanometre resolution without imposing symmetry. Large, potentially force-generating, conformational differences exist between ATP- and ADP-bound NSF. The 20S supercomplex exhibits broken symmetry, transitioning from six-fold symmetry of the NSF ATPase domains to pseudo four-fold symmetry of the SNARE complex. SNAPs interact with the SNARE complex with an opposite structural twist, suggesting an unwinding mechanism. The interfaces between NSF, SNAPs, and SNAREs exhibit characteristic electrostatic patterns, suggesting how one NSF/SNAP species can act on many different SNARE complexes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4320033/" 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/PMC4320033/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhao, Minglei -- Wu, Shenping -- Zhou, Qiangjun -- Vivona, Sandro -- Cipriano, Daniel J -- Cheng, Yifan -- Brunger, Axel T -- 5-U01AI082051-05/AI/NIAID NIH HHS/ -- P50 GM082250/GM/NIGMS NIH HHS/ -- P50GM082250/GM/NIGMS NIH HHS/ -- R01 GM082893/GM/NIGMS NIH HHS/ -- R01 GM098672/GM/NIGMS NIH HHS/ -- R01GM082893/GM/NIGMS NIH HHS/ -- R01GM098672/GM/NIGMS NIH HHS/ -- R37 MH063105/MH/NIMH NIH HHS/ -- R37MH63105/MH/NIMH NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Feb 5;518(7537):61-7. doi: 10.1038/nature14148. Epub 2015 Jan 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Physiology, Howard Hughes Medical Institute, Stanford University, Stanford, California 94305, USA. ; Keck Advanced Microscopy Laboratory, Department of Biochemistry and Biophysics, University of California, San Francisco, California 94158, USA. ; 1] Department of Molecular and Cellular Physiology, Howard Hughes Medical Institute, Stanford University, Stanford, California 94305, USA [2] Department of Neurology and Neurological Sciences, Department of Structural Biology, Department of Photon Science, Stanford University, Stanford, California 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25581794" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Diphosphate/metabolism ; Adenosine Triphosphate/metabolism ; Animals ; Cricetulus ; Cryoelectron Microscopy ; Models, Molecular ; Multiprotein Complexes/*chemistry/*metabolism/ultrastructure ; N-Ethylmaleimide-Sensitive Proteins/chemistry/metabolism/ultrastructure ; Protein Binding ; Protein Structure, Tertiary ; Rats ; SNARE Proteins/*chemistry/*metabolism/ultrastructure ; Soluble N-Ethylmaleimide-Sensitive Factor Attachment ; Proteins/chemistry/metabolism/ultrastructure
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  • 63
    Publication Date: 2015-11-13
    Description: Plant genomes, and eukaryotic genomes in general, are typically repetitive, polyploid and heterozygous, which complicates genome assembly. The short read lengths of early Sanger and current next-generation sequencing platforms hinder assembly through complex repeat regions, and many draft and reference genomes are fragmented, lacking skewed GC and repetitive intergenic sequences, which are gaining importance due to projects like the Encyclopedia of DNA Elements (ENCODE). Here we report the whole-genome sequencing and assembly of the desiccation-tolerant grass Oropetium thomaeum. Using only single-molecule real-time sequencing, which generates long (〉16 kilobases) reads with random errors, we assembled 99% (244 megabases) of the Oropetium genome into 625 contigs with an N50 length of 2.4 megabases. Oropetium is an example of a 'near-complete' draft genome which includes gapless coverage over gene space as well as intergenic sequences such as centromeres, telomeres, transposable elements and rRNA clusters that are typically unassembled in draft genomes. Oropetium has 28,466 protein-coding genes and 43% repeat sequences, yet with 30% more compact euchromatic regions it is the smallest known grass genome. The Oropetium genome demonstrates the utility of single-molecule real-time sequencing for assembling high-quality plant and other eukaryotic genomes, and serves as a valuable resource for the plant comparative genomics community.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉VanBuren, Robert -- Bryant, Doug -- Edger, Patrick P -- Tang, Haibao -- Burgess, Diane -- Challabathula, Dinakar -- Spittle, Kristi -- Hall, Richard -- Gu, Jenny -- Lyons, Eric -- Freeling, Michael -- Bartels, Dorothea -- Ten Hallers, Boudewijn -- Hastie, Alex -- Michael, Todd P -- Mockler, Todd C -- England -- Nature. 2015 Nov 26;527(7579):508-11. doi: 10.1038/nature15714. Epub 2015 Nov 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Donald Danforth Plant Science Center, St Louis, Missouri 63132, USA. ; Department of Plant and Microbial Biology, University of California Berkeley, Berkeley, California 94720, USA. ; Department of Horticulture, Michigan State University, East Lansing, Michigan 48823, USA. ; iPlant Collaborative, School of Plant Sciences, University of Arizona, Tucson, Arizona 85721, USA. ; Center for Genomics and Biotechnology, Haixia Institute of Science and Technology (HIST), Fujian Agriculture and Forestry University, Fuzhou 350002, China. ; IMBIO, University of Bonn, Kirschallee 1, D-53115 Bonn, Germany. ; Pacific Biosciences, Menlo Park, California 94025, USA. ; BioNano Genomics, San Diego, California 92121, USA. ; Ibis Biosciences, Carlsbad, California 92008, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26560029" target="_blank"〉PubMed〈/a〉
    Keywords: Acclimatization/genetics ; Contig Mapping ; Dehydration ; Desiccation ; Droughts ; Genes, Plant/genetics ; Genome, Plant/*genetics ; Genomics ; Molecular Sequence Data ; Poaceae/*genetics ; Sequence Analysis, DNA/*methods
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  • 64
    Publication Date: 2015-01-22
    Description: Low-molecular-mass thiols in organisms are well known for their redox-relevant role in protection against various endogenous and exogenous stresses. In eukaryotes and Gram-negative bacteria, the primary thiol is glutathione (GSH), a cysteinyl-containing tripeptide. In contrast, mycothiol (MSH), a cysteinyl pseudo-disaccharide, is dominant in Gram-positive actinobacteria, including antibiotic-producing actinomycetes and pathogenic mycobacteria. MSH is equivalent to GSH, either as a cofactor or as a substrate, in numerous biochemical processes, most of which have not been characterized, largely due to the dearth of information concerning MSH-dependent proteins. Actinomycetes are able to produce another thiol, ergothioneine (EGT), a histidine betaine derivative that is widely assimilated by plants and animals for variable physiological activities. The involvement of EGT in enzymatic reactions, however, lacks any precedent. Here we report that the unprecedented coupling of two bacterial thiols, MSH and EGT, has a constructive role in the biosynthesis of lincomycin A, a sulfur-containing lincosamide (C8 sugar) antibiotic that has been widely used for half a century to treat Gram-positive bacterial infections. EGT acts as a carrier to template the molecular assembly, and MSH is the sulfur donor for lincomycin maturation after thiol exchange. These thiols function through two unusual S-glycosylations that program lincosamide transfer, activation and modification, providing the first paradigm for EGT-associated biochemical processes and for the poorly understood MSH-dependent biotransformations, a newly described model that is potentially common in the incorporation of sulfur, an element essential for life and ubiquitous in living systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhao, Qunfei -- Wang, Min -- Xu, Dongxiao -- Zhang, Qinglin -- Liu, Wen -- England -- Nature. 2015 Feb 5;518(7537):115-9. doi: 10.1038/nature14137. Epub 2015 Jan 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China. ; Huzhou Center of Bio-Synthetic Innovation, 1366 Hongfeng Road, Huzhou 313000, China. ; 1] State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China [2] Huzhou Center of Bio-Synthetic Innovation, 1366 Hongfeng Road, Huzhou 313000, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25607359" target="_blank"〉PubMed〈/a〉
    Keywords: Anti-Bacterial Agents/*biosynthesis ; Biological Products/metabolism ; Biosynthetic Pathways/genetics ; Biotransformation ; Cysteine/chemistry/*metabolism ; Ergothioneine/chemistry/*metabolism ; Glycopeptides/chemistry/*metabolism ; Glycosylation ; Inositol/chemistry/*metabolism ; Lincomycin/*biosynthesis ; Lincosamides/metabolism ; Molecular Sequence Data ; Streptomyces/genetics/*metabolism
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  • 65
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    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2015-06-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dolgin, Elie -- England -- Nature. 2015 Jun 4;522(7554):26-8. doi: 10.1038/522026a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26040878" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biotechnology/*economics/trends ; Drug Industry/*economics/trends ; Erythropoietin/biosynthesis/genetics ; Humans ; Massachusetts ; Mice ; Patents as Topic ; Primates ; *RNA, Messenger/administration & dosage/biosynthesis/genetics ; Rats
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  • 66
    Publication Date: 2015-01-21
    Description: Fear memories allow animals to avoid danger, thereby increasing their chances of survival. Fear memories can be retrieved long after learning, but little is known about how retrieval circuits change with time. Here we show that the dorsal midline thalamus of rats is required for the retrieval of auditory conditioned fear at late (24 hours, 7 days, 28 days), but not early (0.5 hours, 6 hours) time points after learning. Consistent with this, the paraventricular nucleus of the thalamus (PVT), a subregion of the dorsal midline thalamus, showed increased c-Fos expression only at late time points, indicating that the PVT is gradually recruited for fear retrieval. Accordingly, the conditioned tone responses of PVT neurons increased with time after training. The prelimbic (PL) prefrontal cortex, which is necessary for fear retrieval, sends dense projections to the PVT. Retrieval at late time points activated PL neurons projecting to the PVT, and optogenetic silencing of these projections impaired retrieval at late, but not early, time points. In contrast, silencing of PL inputs to the basolateral amygdala impaired retrieval at early, but not late, time points, indicating a time-dependent shift in retrieval circuits. Retrieval at late time points also activated PVT neurons projecting to the central nucleus of the amygdala, and silencing these projections at late, but not early, time points induced a persistent attenuation of fear. Thus, the PVT may act as a crucial thalamic node recruited into cortico-amygdalar networks for retrieval and maintenance of long-term fear memories.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4376623/" 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/PMC4376623/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Do-Monte, Fabricio H -- Quinones-Laracuente, Kelvin -- Quirk, Gregory J -- G12 MD007600/MD/NIMHD NIH HHS/ -- K99 MH105549/MH/NIMH NIH HHS/ -- P50 MH086400/MH/NIMH NIH HHS/ -- P50-MH086400/MH/NIMH NIH HHS/ -- R01-MH058883/MH/NIMH NIH HHS/ -- R25 GM061838/GM/NIGMS NIH HHS/ -- R25-GM061838/GM/NIGMS NIH HHS/ -- R37 MH058883/MH/NIMH NIH HHS/ -- England -- Nature. 2015 Mar 26;519(7544):460-3. doi: 10.1038/nature14030. Epub 2015 Jan 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Department of Psychiatry, University of Puerto Rico School of Medicine, PO Box 365067, San Juan 00936, Puerto Rico [2] Department of Anatomy &Neurobiology, University of Puerto Rico School of Medicine, P.O. Box 365067, San Juan 00936, Puerto Rico.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25600268" target="_blank"〉PubMed〈/a〉
    Keywords: Amygdala/cytology/physiology ; Animals ; Conditioning (Psychology)/physiology ; Fear/*physiology ; Male ; Memory/*physiology ; Neural Pathways/cytology/*physiology ; Neurons/physiology ; Optogenetics ; Prefrontal Cortex/cytology/physiology ; Proto-Oncogene Proteins c-fos/metabolism ; Rats ; Rats, Sprague-Dawley ; Thalamus/cytology/physiology ; Time Factors
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  • 67
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    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2015-01-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scudellari, Megan -- England -- Nature. 2015 Jan 22;517(7535):426-9. doi: 10.1038/517426a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25612035" target="_blank"〉PubMed〈/a〉
    Keywords: Aging/*blood ; Alzheimer Disease/blood/therapy ; Animals ; Blood Component Removal ; Blood Transfusion ; Bone Morphogenetic Proteins/pharmacology ; Caloric Restriction ; Clinical Trials as Topic ; Female ; Geriatrics/*methods ; Growth Differentiation Factors/pharmacology ; Humans ; Longevity/drug effects ; Male ; Memory/drug effects ; Mice ; Myoblasts, Skeletal/cytology/drug effects ; Neuronal Plasticity/drug effects ; Neurons/cytology/drug effects ; Oxytocin/metabolism/pharmacology ; Plasma/chemistry/physiology ; Rats ; Rejuvenation/*physiology ; Sirolimus/adverse effects/pharmacology
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  • 68
    Publication Date: 2015-08-11
    Description: The sudden appearance of the neural crest and neurogenic placodes in early branching vertebrates has puzzled biologists for over a century. These embryonic tissues contribute to the development of the cranium and associated sensory organs, which were crucial for the evolution of the vertebrate "new head". A previous study suggests that rudimentary neural crest cells existed in ancestral chordates. However, the evolutionary origins of neurogenic placodes have remained obscure owing to a paucity of embryonic data from tunicates, the closest living relatives to those early vertebrates. Here we show that the tunicate Ciona intestinalis exhibits a proto-placodal ectoderm (PPE) that requires inhibition of bone morphogenetic protein (BMP) and expresses the key regulatory determinant Six1/2 and its co-factor Eya, a developmental process conserved across vertebrates. The Ciona PPE is shown to produce ciliated neurons that express genes for gonadotropin-releasing hormone (GnRH), a G-protein-coupled receptor for relaxin-3 (RXFP3) and a functional cyclic nucleotide-gated channel (CNGA), which suggests dual chemosensory and neurosecretory activities. These observations provide evidence that Ciona has a neurogenic proto-placode, which forms neurons that appear to be related to those derived from the olfactory placode and hypothalamic neurons of vertebrates. We discuss the possibility that the PPE-derived GnRH neurons of Ciona resemble an ancestral cell type, a progenitor to the complex neuronal circuit that integrates sensory information and neuroendocrine functions in vertebrates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abitua, Philip Barron -- Gainous, T Blair -- Kaczmarczyk, Angela N -- Winchell, Christopher J -- Hudson, Clare -- Kamata, Kaori -- Nakagawa, Masashi -- Tsuda, Motoyuki -- Kusakabe, Takehiro G -- Levine, Michael -- NS076542/NS/NINDS NIH HHS/ -- England -- Nature. 2015 Aug 27;524(7566):462-5. doi: 10.1038/nature14657. Epub 2015 Aug 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Integrative Genomics, Division of Genetics, Genomics and Development, Department of Molecular and Cell Biology, University of California, Berkeley, California 94720, USA. ; Sorbonne Universites, Universite Pierre et Marie Curie, Centre National de la Recherche Scientifique, Laboratoire de Biologie du Developpement de Villefranche-sur-mer, Observatoire Oceanologique, 06230 Villefranche-sur-mer, France. ; Graduate School of Life Science, University of Hyogo, Kamigori, Hyogo 678-1297, Japan. ; Institute for Integrative Neurobiology and Department of Biology, Faculty of Science and Engineering, Konan University, Kobe 658-8501, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26258298" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Body Patterning ; Bone Morphogenetic Proteins ; Ciona intestinalis/*cytology/*embryology/genetics/metabolism ; Ectoderm/metabolism ; Gonadotropin-Releasing Hormone/metabolism ; HEK293 Cells ; Homeodomain Proteins/metabolism ; Humans ; Intracellular Signaling Peptides and Proteins/metabolism ; Larva/cytology/metabolism ; Molecular Sequence Data ; Neurons/*cytology/metabolism ; Protein Tyrosine Phosphatases/metabolism ; Receptors, G-Protein-Coupled/metabolism ; Vertebrates/*anatomy & histology/*embryology/physiology
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  • 69
    Publication Date: 2015-01-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aguilera, Washington Tapia -- Malaga, Jeffreys -- Gibbs, James P -- England -- Nature. 2015 Jan 15;517(7534):271. doi: 10.1038/517271a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Galapagos Conservancy, Santa Cruz, Galapagos, Ecuador. ; Galapagos National Park, San Cristobal, Galapagos, Ecuador. ; State University of New York College of Environmental Science and Forestry, Syracuse, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25592525" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Conservation of Natural Resources ; Ecuador ; Population Dynamics ; Rats ; Reproduction/physiology ; Rodent Control ; Turtles/*physiology
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  • 70
    Publication Date: 2015-11-27
    Description: Nitrification, the oxidation of ammonia via nitrite to nitrate, has always been considered to be a two-step process catalysed by chemolithoautotrophic microorganisms oxidizing either ammonia or nitrite. No known nitrifier carries out both steps, although complete nitrification should be energetically advantageous. This functional separation has puzzled microbiologists for a century. Here we report on the discovery and cultivation of a completely nitrifying bacterium from the genus Nitrospira, a globally distributed group of nitrite oxidizers. The genome of this chemolithoautotrophic organism encodes the pathways both for ammonia and nitrite oxidation, which are concomitantly activated during growth by ammonia oxidation to nitrate. Genes affiliated with the phylogenetically distinct ammonia monooxygenase and hydroxylamine dehydrogenase genes of Nitrospira are present in many environments and were retrieved on Nitrospira-contigs in new metagenomes from engineered systems. These findings fundamentally change our picture of nitrification and point to completely nitrifying Nitrospira as key components of nitrogen-cycling microbial communities.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Daims, Holger -- Lebedeva, Elena V -- Pjevac, Petra -- Han, Ping -- Herbold, Craig -- Albertsen, Mads -- Jehmlich, Nico -- Palatinszky, Marton -- Vierheilig, Julia -- Bulaev, Alexandr -- Kirkegaard, Rasmus H -- von Bergen, Martin -- Rattei, Thomas -- Bendinger, Bernd -- Nielsen, Per H -- Wagner, Michael -- England -- Nature. 2015 Dec 24;528(7583):504-9. doi: 10.1038/nature16461. Epub 2015 Nov 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Ecosystem Science, Division of Microbial Ecology, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria. ; Winogradsky Institute of Microbiology, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Ave. 33, bld. 2, 119071 Moscow, Russia. ; Center for Microbial Communities, Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220 Aalborg, Denmark. ; Helmholtz-Centre for Environmental Research - UFZ, Department of Proteomics, Permoserstrasse 15, 04318 Leipzig, Germany. ; Helmholtz-Centre for Environmental Research - UFZ, Department of Metabolomics, Permoserstrasse 15, 04318 Leipzig, Germany. ; Department of Microbiology and Ecosystem Science, Division of Computational Systems Biology, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria. ; DVGW-Forschungsstelle TUHH, Hamburg University of Technology, 21073 Hamburg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26610024" target="_blank"〉PubMed〈/a〉
    Keywords: Ammonia/*metabolism ; Bacteria/enzymology/genetics/growth & development/*metabolism ; Evolution, Molecular ; Genome, Bacterial/genetics ; Molecular Sequence Data ; Nitrates/*metabolism ; *Nitrification/genetics ; Nitrites/*metabolism ; Oxidation-Reduction ; Oxidoreductases/genetics/metabolism ; Phylogeny
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  • 71
    Publication Date: 2015-03-25
    Description: The first step in the biogenesis of microRNAs is the processing of primary microRNAs (pri-miRNAs) by the microprocessor complex, composed of the RNA-binding protein DGCR8 and the type III RNase DROSHA. This initial event requires recognition of the junction between the stem and the flanking single-stranded RNA of the pri-miRNA hairpin by DGCR8 followed by recruitment of DROSHA, which cleaves the RNA duplex to yield the pre-miRNA product. While the mechanisms underlying pri-miRNA processing have been determined, the mechanism by which DGCR8 recognizes and binds pri-miRNAs, as opposed to other secondary structures present in transcripts, is not understood. Here we find in mammalian cells that methyltransferase-like 3 (METTL3) methylates pri-miRNAs, marking them for recognition and processing by DGCR8. Consistent with this, METTL3 depletion reduced the binding of DGCR8 to pri-miRNAs and resulted in the global reduction of mature miRNAs and concomitant accumulation of unprocessed pri-miRNAs. In vitro processing reactions confirmed the sufficiency of the N(6)-methyladenosine (m(6)A) mark in promoting pri-miRNA processing. Finally, gain-of-function experiments revealed that METTL3 is sufficient to enhance miRNA maturation in a global and non-cell-type-specific manner. Our findings reveal that the m(6)A mark acts as a key post-transcriptional modification that promotes the initiation of miRNA biogenesis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4475635/" 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/PMC4475635/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Alarcon, Claudio R -- Lee, Hyeseung -- Goodarzi, Hani -- Halberg, Nils -- Tavazoie, Sohail F -- T32 CA009673/CA/NCI NIH HHS/ -- England -- Nature. 2015 Mar 26;519(7544):482-5. doi: 10.1038/nature14281. Epub 2015 Mar 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Systems Cancer Biology, Rockefeller University, 1230 York Avenue, New York, New York 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25799998" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine/*analogs & derivatives/metabolism ; Base Sequence ; Cell Line ; Gene Expression Regulation ; Humans ; Methylation ; Methyltransferases/deficiency/metabolism ; MicroRNAs/*chemistry/*metabolism ; Molecular Sequence Data ; Nucleic Acid Conformation ; *RNA Processing, Post-Transcriptional ; RNA-Binding Proteins/metabolism ; Substrate Specificity
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  • 72
    Publication Date: 2015-02-13
    Description: Grid cells represent an animal's location by firing in multiple fields arranged in a striking hexagonal array. Such an impressive and constant regularity prompted suggestions that grid cells represent a universal and environmental-invariant metric for navigation. Originally the properties of grid patterns were believed to be independent of the shape of the environment and this notion has dominated almost all theoretical grid cell models. However, several studies indicate that environmental boundaries influence grid firing, though the strength, nature and longevity of this effect is unclear. Here we show that grid orientation, scale, symmetry and homogeneity are strongly and permanently affected by environmental geometry. We found that grid patterns orient to the walls of polarized enclosures such as squares, but not circles. Furthermore, the hexagonal grid symmetry is permanently broken in highly polarized environments such as trapezoids, the pattern being more elliptical and less homogeneous. Our results provide compelling evidence for the idea that environmental boundaries compete with the internal organization of the grid cell system to drive grid firing. Notably, grid cell activity is more local than previously thought and as a consequence cannot provide a universal spatial metric in all environments.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4576734/" 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/PMC4576734/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Krupic, Julija -- Bauza, Marius -- Burton, Stephen -- Barry, Caswell -- O'Keefe, John -- 101590/Wellcome Trust/United Kingdom -- Wellcome Trust/United Kingdom -- England -- Nature. 2015 Feb 12;518(7538):232-5. doi: 10.1038/nature14153.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell and Developmental Biology, University College London, London WC1E 6BT, UK. ; 1] Department of Cell and Developmental Biology, University College London, London WC1E 6BT, UK [2] Sainsbury Wellcome Centre, University College London, London WC1E 6BT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25673417" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Entorhinal Cortex/*cytology/physiology ; *Environment ; Male ; Models, Neurological ; Neurons/*cytology/physiology ; Orientation/*physiology ; Pattern Recognition, Visual/physiology ; Rats ; Rotation ; Space Perception/*physiology
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  • 73
    Publication Date: 2015-02-25
    Description: Clustered regularly interspaced short palindromic repeat (CRISPR) loci and their associated (Cas) proteins provide adaptive immunity against viral infection in prokaryotes. Upon infection, short phage sequences known as spacers integrate between CRISPR repeats and are transcribed into small RNA molecules that guide the Cas9 nuclease to the viral targets (protospacers). Streptococcus pyogenes Cas9 cleavage of the viral genome requires the presence of a 5'-NGG-3' protospacer adjacent motif (PAM) sequence immediately downstream of the viral target. It is not known whether and how viral sequences flanked by the correct PAM are chosen as new spacers. Here we show that Cas9 selects functional spacers by recognizing their PAM during spacer acquisition. The replacement of cas9 with alleles that lack the PAM recognition motif or recognize an NGGNG PAM eliminated or changed PAM specificity during spacer acquisition, respectively. Cas9 associates with other proteins of the acquisition machinery (Cas1, Cas2 and Csn2), presumably to provide PAM-specificity to this process. These results establish a new function for Cas9 in the genesis of prokaryotic immunological memory.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4385744/" 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/PMC4385744/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heler, Robert -- Samai, Poulami -- Modell, Joshua W -- Weiner, Catherine -- Goldberg, Gregory W -- Bikard, David -- Marraffini, Luciano A -- 1DP2AI104556-01/AI/NIAID NIH HHS/ -- DP2 AI104556/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Mar 12;519(7542):199-202. doi: 10.1038/nature14245. Epub 2015 Feb 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Bacteriology, The Rockefeller University, 1230 York Avenue, New York, New York 10065, USA. ; 1] Laboratory of Bacteriology, The Rockefeller University, 1230 York Avenue, New York, New York 10065, USA [2] Synthetic Biology Group, Institut Pasteur, 28 Rue du Dr. Roux, 75015 Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25707807" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; CRISPR-Associated Proteins/*metabolism ; *CRISPR-Cas Systems/immunology ; Clustered Regularly Interspaced Short Palindromic Repeats/*genetics/immunology ; DNA, Viral/*genetics/immunology/metabolism ; Molecular Sequence Data ; Nucleotide Motifs ; Protein Binding ; Protein Structure, Tertiary ; Staphylococcus aureus ; Streptococcus pyogenes/*enzymology/*genetics/immunology/virology ; Substrate Specificity
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  • 74
    Publication Date: 2015-04-10
    Description: The main organelles of the secretory and endocytic pathways--the endoplasmic reticulum (ER) and endosomes, respectively--are connected through contact sites whose numbers increase as endosomes mature. One function of such sites is to enable dephosphorylation of the cytosolic tails of endosomal signalling receptors by an ER-associated phosphatase, whereas others serve to negatively control the association of endosomes with the minus-end-directed microtubule motor dynein or mediate endosome fission. Cholesterol transfer and Ca(2+) exchange have been proposed as additional functions of such sites. However, the compositions, activities and regulations of ER-endosome contact sites remain incompletely understood. Here we show in human and rat cell lines that protrudin, an ER protein that promotes protrusion and neurite outgrowth, forms contact sites with late endosomes (LEs) via coincident detection of the small GTPase RAB7 and phosphatidylinositol 3-phosphate (PtdIns(3)P). These contact sites mediate transfer of the microtubule motor kinesin 1 from protrudin to the motor adaptor FYCO1 on LEs. Repeated LE-ER contacts promote microtubule-dependent translocation of LEs to the cell periphery and subsequent synaptotagmin-VII-dependent fusion with the plasma membrane. Such fusion induces outgrowth of protrusions and neurites, which requires the abilities of protrudin and FYCO1 to interact with LEs and kinesin 1. Thus, protrudin-containing ER-LE contact sites are platforms for kinesin-1 loading onto LEs, and kinesin-1-mediated translocation of LEs to the plasma membrane, fuelled by repeated ER contacts, promotes protrusion and neurite outgrowth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Raiborg, Camilla -- Wenzel, Eva M -- Pedersen, Nina M -- Olsvik, Hallvard -- Schink, Kay O -- Schultz, Sebastian W -- Vietri, Marina -- Nisi, Veronica -- Bucci, Cecilia -- Brech, Andreas -- Johansen, Terje -- Stenmark, Harald -- England -- Nature. 2015 Apr 9;520(7546):234-8. doi: 10.1038/nature14359.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Centre for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Montebello, N-0379 Oslo, Norway [2] Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, Montebello, N-0379 Oslo, Norway. ; Institute of Medical Biology, University of Tromso - The Arctic University of Norway, N-9037 Tromso, Norway. ; Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Provinciale Monteroni 165, 73100 Lecce, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25855459" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Biological Transport ; Cell Line ; Cell Membrane/metabolism ; DNA-Binding Proteins/metabolism ; Endoplasmic Reticulum/*metabolism ; Endosomes/*metabolism ; HeLa Cells ; Humans ; Kinesin/metabolism ; Microtubules/metabolism ; Neurites/*metabolism ; Phosphatidylinositol Phosphates/metabolism ; Rats ; Synaptotagmins/metabolism ; Transcription Factors/metabolism ; Vesicular Transport Proteins/metabolism ; rab GTP-Binding Proteins/metabolism
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  • 75
    Publication Date: 2015-10-23
    Description: The anaerobic oxidation of methane (AOM) with sulfate controls the emission of the greenhouse gas methane from the ocean floor. In marine sediments, AOM is performed by dual-species consortia of anaerobic methanotrophic archaea (ANME) and sulfate-reducing bacteria (SRB) inhabiting the methane-sulfate transition zone. The biochemical pathways and biological adaptations enabling this globally relevant process are not fully understood. Here we study the syntrophic interaction in thermophilic AOM (TAOM) between ANME-1 archaea and their consortium partner SRB HotSeep-1 (ref. 6) at 60 degrees C to test the hypothesis of a direct interspecies exchange of electrons. The activity of TAOM consortia was compared to the first ANME-free culture of an AOM partner bacterium that grows using hydrogen as the sole electron donor. The thermophilic ANME-1 do not produce sufficient hydrogen to sustain the observed growth of the HotSeep-1 partner. Enhancing the growth of the HotSeep-1 partner by hydrogen addition represses methane oxidation and the metabolic activity of ANME-1. Further supporting the hypothesis of direct electron transfer between the partners, we observe that under TAOM conditions, both ANME and the HotSeep-1 bacteria overexpress genes for extracellular cytochrome production and form cell-to-cell connections that resemble the nanowire structures responsible for interspecies electron transfer between syntrophic consortia of Geobacter. HotSeep-1 highly expresses genes for pili production only during consortial growth using methane, and the nanowire-like structures are absent in HotSeep-1 cells isolated with hydrogen. These observations suggest that direct electron transfer is a principal mechanism in TAOM, which may also explain the enigmatic functioning and specificity of other methanotrophic ANME-SRB consortia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wegener, Gunter -- Krukenberg, Viola -- Riedel, Dietmar -- Tegetmeyer, Halina E -- Boetius, Antje -- England -- Nature. 2015 Oct 22;526(7574):587-90. doi: 10.1038/nature15733.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max-Planck Institute for Marine Microbiology, 28359 Bremen, Germany. ; MARUM, Center for Marine Environmental Sciences, University Bremen, 28359 Bremen, Germany. ; Max Planck Institute for Biophysical Chemistry, 37077 Gottingen, Germany. ; Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, 27570 Bremerhaven, Germany. ; Center for Biotechnology, Bielefeld University, 33615 Bielefeld, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26490622" target="_blank"〉PubMed〈/a〉
    Keywords: Anaerobiosis ; Archaea/*metabolism ; Bacteria/*metabolism ; Cytochromes/metabolism ; Electron Transport ; Fimbriae, Bacterial/metabolism ; Geologic Sediments/microbiology ; Heme/metabolism ; Hydrogen/metabolism ; Hydrothermal Vents/microbiology ; Methane/*metabolism ; Microbiota/physiology ; Molecular Sequence Data ; Oceans and Seas ; Sulfates/metabolism ; Symbiosis ; Temperature
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  • 76
    Publication Date: 2015-05-07
    Description: The origin of the eukaryotic cell remains one of the most contentious puzzles in modern biology. Recent studies have provided support for the emergence of the eukaryotic host cell from within the archaeal domain of life, but the identity and nature of the putative archaeal ancestor remain a subject of debate. Here we describe the discovery of 'Lokiarchaeota', a novel candidate archaeal phylum, which forms a monophyletic group with eukaryotes in phylogenomic analyses, and whose genomes encode an expanded repertoire of eukaryotic signature proteins that are suggestive of sophisticated membrane remodelling capabilities. Our results provide strong support for hypotheses in which the eukaryotic host evolved from a bona fide archaeon, and demonstrate that many components that underpin eukaryote-specific features were already present in that ancestor. This provided the host with a rich genomic 'starter-kit' to support the increase in the cellular and genomic complexity that is characteristic of eukaryotes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4444528/" 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/PMC4444528/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Spang, Anja -- Saw, Jimmy H -- Jorgensen, Steffen L -- Zaremba-Niedzwiedzka, Katarzyna -- Martijn, Joran -- Lind, Anders E -- van Eijk, Roel -- Schleper, Christa -- Guy, Lionel -- Ettema, Thijs J G -- 310039/European Research Council/International -- England -- Nature. 2015 May 14;521(7551):173-9. doi: 10.1038/nature14447. Epub 2015 May 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell and Molecular Biology, Science for Life Laboratory, Uppsala University, SE-75123 Uppsala, Sweden. ; Department of Biology, Centre for Geobiology, University of Bergen, N-5020 Bergen, Norway. ; 1] Department of Biology, Centre for Geobiology, University of Bergen, N-5020 Bergen, Norway [2] Division of Archaea Biology and Ecogenomics, Department of Ecogenomics and Systems Biology, University of Vienna, A-1090 Vienna, Austria. ; 1] Department of Cell and Molecular Biology, Science for Life Laboratory, Uppsala University, SE-75123 Uppsala, Sweden [2] Department of Medical Biochemistry and Microbiology, Uppsala University, SE-75123 Uppsala, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25945739" target="_blank"〉PubMed〈/a〉
    Keywords: Actin Cytoskeleton/metabolism ; Actins/genetics/metabolism ; Archaea/*classification/genetics/metabolism ; Arctic Regions ; Endosomal Sorting Complexes Required for Transport/genetics/metabolism ; Eukaryota/*classification/genetics/metabolism ; Eukaryotic Cells/classification/metabolism ; *Evolution, Molecular ; Hydrothermal Vents/*microbiology ; Metagenome/genetics ; Molecular Sequence Data ; Monomeric GTP-Binding Proteins/genetics/metabolism ; *Phylogeny ; Prokaryotic Cells/*classification ; Proteome/genetics/isolation & purification/metabolism
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  • 77
    Publication Date: 2015-10-13
    Description: Inositol-1,4,5-trisphosphate receptors (InsP3Rs) are ubiquitous ion channels responsible for cytosolic Ca(2+) signalling and essential for a broad array of cellular processes ranging from contraction to secretion, and from proliferation to cell death. Despite decades of research on InsP3Rs, a mechanistic understanding of their structure-function relationship is lacking. Here we present the first, to our knowledge, near-atomic (4.7 A) resolution electron cryomicroscopy structure of the tetrameric mammalian type 1 InsP3R channel in its apo-state. At this resolution, we are able to trace unambiguously approximately 85% of the protein backbone, allowing us to identify the structural elements involved in gating and modulation of this 1.3-megadalton channel. Although the central Ca(2+)-conduction pathway is similar to other ion channels, including the closely related ryanodine receptor, the cytosolic carboxy termini are uniquely arranged in a left-handed alpha-helical bundle, directly interacting with the amino-terminal domains of adjacent subunits. This configuration suggests a molecular mechanism for allosteric regulation of channel gating by intracellular signals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fan, Guizhen -- Baker, Matthew L -- Wang, Zhao -- Baker, Mariah R -- Sinyagovskiy, Pavel A -- Chiu, Wah -- Ludtke, Steven J -- Serysheva, Irina I -- P41 GM103832/GM/NIGMS NIH HHS/ -- P41GM103832/GM/NIGMS NIH HHS/ -- R01 GM072804/GM/NIGMS NIH HHS/ -- R01 GM079429/GM/NIGMS NIH HHS/ -- R01 GM080139/GM/NIGMS NIH HHS/ -- R01GM072804/GM/NIGMS NIH HHS/ -- R01GM079429/GM/NIGMS NIH HHS/ -- R01GM080139/GM/NIGMS NIH HHS/ -- R21 AR063255/AR/NIAMS NIH HHS/ -- R21 GM100229/GM/NIGMS NIH HHS/ -- R21AR063255/AR/NIAMS NIH HHS/ -- R21GM100229/GM/NIGMS NIH HHS/ -- S10 OD016279/OD/NIH HHS/ -- S10OD016279/OD/NIH HHS/ -- England -- Nature. 2015 Nov 19;527(7578):336-41. doi: 10.1038/nature15249. Epub 2015 Oct 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, Structural Biology Imaging Center, The University of Texas Medical School at Houston, 6431 Fannin Street, Houston, Texas 77030, USA. ; National Center for Macromolecular Imaging, Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26458101" target="_blank"〉PubMed〈/a〉
    Keywords: Allosteric Regulation ; Animals ; Apoproteins/chemistry/metabolism/ultrastructure ; Calcium/metabolism ; Calcium Signaling ; *Cryoelectron Microscopy ; Cytosol/chemistry/metabolism ; Inositol 1,4,5-Trisphosphate Receptors/chemistry/*metabolism/*ultrastructure ; Ion Channel Gating ; Models, Molecular ; Protein Folding ; Protein Structure, Quaternary ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Protein Subunits/chemistry/metabolism ; Rats ; Ryanodine Receptor Calcium Release Channel/chemistry/metabolism
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  • 78
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    Nature Publishing Group (NPG)
    Publication Date: 2015-06-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Szalavitz, Maia -- England -- Nature. 2015 Jun 25;522(7557):S48-9. doi: 10.1038/522S48a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26107094" target="_blank"〉PubMed〈/a〉
    Keywords: Alcoholism/complications/genetics ; Aldehyde Dehydrogenase/genetics ; Animals ; Antisocial Personality Disorder/complications/genetics ; Anxiety/complications/genetics ; Behavior, Addictive/enzymology/*genetics/metabolism/*psychology ; Cocaine/administration & dosage/adverse effects ; Epigenesis, Genetic/genetics ; Humans ; Metabolism/genetics ; Methyl-CpG-Binding Protein 2/genetics ; Mice ; Nerve Tissue Proteins/genetics ; Personality ; *Precision Medicine/trends ; Rats ; Receptors, Nicotinic/genetics ; Serotonin Plasma Membrane Transport Proteins/genetics/metabolism ; Stress Disorders, Traumatic/genetics/psychology ; Substance-Related Disorders/complications/genetics ; Temperament ; Tobacco Use Disorder/genetics
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  • 79
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    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2015-07-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reardon, Sara -- England -- Nature. 2015 Jul 16;523(7560):266. doi: 10.1038/523266a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26178942" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biotechnology/methods ; Clinical Trials as Topic ; Drug Discovery/*methods ; Drug Industry/*methods ; Humans ; *Models, Biological ; Organ Specificity/*drug effects ; Rats ; Reproducibility of Results ; Tissue Array Analysis/*methods
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  • 80
    Publication Date: 2015-06-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Willyard, Cassandra -- England -- Nature. 2015 Jun 25;522(7557):S53-5. doi: 10.1038/522S53a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26107096" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Behavior, Addictive/*drug therapy/immunology/*psychology ; Buprenorphine/therapeutic use ; Buprenorphine, Naloxone Drug Combination ; Clinical Trials as Topic ; Cocaine-Related Disorders/drug therapy/immunology/psychology ; Counseling ; Dopamine/metabolism ; *Drug Discovery/economics ; Drug Industry/economics ; Humans ; Ibogaine/analogs & derivatives/pharmacology/therapeutic use ; Lobeline/therapeutic use ; Molecular Targeted Therapy ; Naloxone/therapeutic use ; Naltrexone/therapeutic use ; Oligopeptides/pharmacology/therapeutic use ; Opioid-Related Disorders/drug therapy/immunology/psychology ; Pleasure/*drug effects/physiology ; Rats ; Receptors, Nicotinic/metabolism ; *Reward ; Substance-Related Disorders/*drug therapy/immunology/*psychology ; Tobacco Use Disorder/drug therapy/immunology ; Vaccines/administration & dosage/immunology/therapeutic use ; Vesicular Monoamine Transport Proteins/metabolism
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  • 81
    Publication Date: 2015-07-23
    Description: Atmospheric methane is the second most important greenhouse gas after carbon dioxide, and is responsible for about 20% of the global warming effect since pre-industrial times. Rice paddies are the largest anthropogenic methane source and produce 7-17% of atmospheric methane. Warm waterlogged soil and exuded nutrients from rice roots provide ideal conditions for methanogenesis in paddies with annual methane emissions of 25-100-million tonnes. This scenario will be exacerbated by an expansion in rice cultivation needed to meet the escalating demand for food in the coming decades. There is an urgent need to establish sustainable technologies for increasing rice production while reducing methane fluxes from rice paddies. However, ongoing efforts for methane mitigation in rice paddies are mainly based on farming practices and measures that are difficult to implement. Despite proposed strategies to increase rice productivity and reduce methane emissions, no high-starch low-methane-emission rice has been developed. Here we show that the addition of a single transcription factor gene, barley SUSIBA2 (refs 7, 8), conferred a shift of carbon flux to SUSIBA2 rice, favouring the allocation of photosynthates to aboveground biomass over allocation to roots. The altered allocation resulted in an increased biomass and starch content in the seeds and stems, and suppressed methanogenesis, possibly through a reduction in root exudates. Three-year field trials in China demonstrated that the cultivation of SUSIBA2 rice was associated with a significant reduction in methane emissions and a decrease in rhizospheric methanogen levels. SUSIBA2 rice offers a sustainable means of providing increased starch content for food production while reducing greenhouse gas emissions from rice cultivation. Approaches to increase rice productivity and reduce methane emissions as seen in SUSIBA2 rice may be particularly beneficial in a future climate with rising temperatures resulting in increased methane emissions from paddies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Su, J -- Hu, C -- Yan, X -- Jin, Y -- Chen, Z -- Guan, Q -- Wang, Y -- Zhong, D -- Jansson, C -- Wang, F -- Schnurer, A -- Sun, C -- England -- Nature. 2015 Jul 30;523(7562):602-6. doi: 10.1038/nature14673. Epub 2015 Jul 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Institute of Biotechnology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China [2] Department of Plant Biology, Uppsala BioCenter, Linnean Center for Plant Biology, Swedish University of Agricultural Sciences, PO Box 7080, SE-75007 Uppsala, Sweden. ; Department of Plant Biology, Uppsala BioCenter, Linnean Center for Plant Biology, Swedish University of Agricultural Sciences, PO Box 7080, SE-75007 Uppsala, Sweden. ; 1] Department of Plant Biology, Uppsala BioCenter, Linnean Center for Plant Biology, Swedish University of Agricultural Sciences, PO Box 7080, SE-75007 Uppsala, Sweden [2] Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization, Hunan Agricultural University, Changsha 410128, China. ; Institute of Biotechnology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China. ; The Environmental Molecular Sciences Laboratory (EMSL), Pacific Northwest National Laboratory, PO Box 999, K8-93 Richland, Washington 99352, USA. ; Department of Microbiology, Uppsala BioCenter, Swedish University of Agricultural Sciences, SE-75007 Uppsala, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26200336" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture/methods/trends ; Atmosphere/chemistry ; Biomass ; Carbon Cycle ; China ; Conservation of Natural Resources/methods ; Food Supply/methods ; Genotype ; Global Warming/prevention & control ; Greenhouse Effect/*prevention & control ; Hordeum/*genetics ; Methane/biosynthesis/*metabolism ; Molecular Sequence Data ; Oryza/genetics/growth & development/*metabolism ; Phenotype ; Photosynthesis ; Plant Components, Aerial/metabolism ; Plant Proteins/genetics/*metabolism ; Plant Roots/metabolism ; Plants, Genetically Modified ; Rhizosphere ; Seeds/metabolism ; Starch/biosynthesis/*metabolism ; Transcription Factors/genetics/*metabolism
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  • 82
    Publication Date: 2015-04-10
    Description: Adiponectin stimulation of its receptors, AdipoR1 and AdipoR2, increases the activities of 5' AMP-activated protein kinase (AMPK) and peroxisome proliferator-activated receptor (PPAR), respectively, thereby contributing to healthy longevity as key anti-diabetic molecules. AdipoR1 and AdipoR2 were predicted to contain seven transmembrane helices with the opposite topology to G-protein-coupled receptors. Here we report the crystal structures of human AdipoR1 and AdipoR2 at 2.9 and 2.4 A resolution, respectively, which represent a novel class of receptor structure. The seven-transmembrane helices, conformationally distinct from those of G-protein-coupled receptors, enclose a large cavity where three conserved histidine residues coordinate a zinc ion. The zinc-binding structure may have a role in the adiponectin-stimulated AMPK phosphorylation and UCP2 upregulation. Adiponectin may broadly interact with the extracellular face, rather than the carboxy-terminal tail, of the receptors. The present information will facilitate the understanding of novel structure-function relationships and the development and optimization of AdipoR agonists for the treatment of obesity-related diseases, such as type 2 diabetes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4477036/" 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/PMC4477036/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tanabe, Hiroaki -- Fujii, Yoshifumi -- Okada-Iwabu, Miki -- Iwabu, Masato -- Nakamura, Yoshihiro -- Hosaka, Toshiaki -- Motoyama, Kanna -- Ikeda, Mariko -- Wakiyama, Motoaki -- Terada, Takaho -- Ohsawa, Noboru -- Hato, Masakatsu -- Ogasawara, Satoshi -- Hino, Tomoya -- Murata, Takeshi -- Iwata, So -- Hirata, Kunio -- Kawano, Yoshiaki -- Yamamoto, Masaki -- Kimura-Someya, Tomomi -- Shirouzu, Mikako -- Yamauchi, Toshimasa -- Kadowaki, Takashi -- Yokoyama, Shigeyuki -- 062164/Z/00/Z/Wellcome Trust/United Kingdom -- 089809/Wellcome Trust/United Kingdom -- BB/G02325/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/G023425/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- England -- Nature. 2015 Apr 16;520(7547):312-6. doi: 10.1038/nature14301. Epub 2015 Apr 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] RIKEN Systems and Structural Biology Center, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan [2] Department of Biophysics and Biochemistry and Laboratory of Structural Biology, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan [3] Division of Structural and Synthetic Biology, RIKEN Center for Life Science Technologies, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan [4] RIKEN Structural Biology Laboratory, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan. ; 1] RIKEN Systems and Structural Biology Center, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan [2] RIKEN Structural Biology Laboratory, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan. ; 1] Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan [2] Department of Integrated Molecular Science on Metabolic Diseases, 22nd Century Medical and Research Center, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan. ; 1] Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan [2] Department of Integrated Molecular Science on Metabolic Diseases, 22nd Century Medical and Research Center, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan [3] PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan. ; 1] RIKEN Systems and Structural Biology Center, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan [2] Division of Structural and Synthetic Biology, RIKEN Center for Life Science Technologies, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan [3] RIKEN Structural Biology Laboratory, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan. ; 1] RIKEN Systems and Structural Biology Center, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan [2] Division of Structural and Synthetic Biology, RIKEN Center for Life Science Technologies, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan. ; RIKEN Systems and Structural Biology Center, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan. ; Department of Cell Biology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan. ; 1] Department of Cell Biology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan [2] JST, Research Acceleration Program, Membrane Protein Crystallography Project, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan. ; 1] RIKEN Systems and Structural Biology Center, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan [2] Department of Cell Biology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan [3] JST, Research Acceleration Program, Membrane Protein Crystallography Project, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan [4] Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho, Inage, Chiba 263-8522, Japan. ; 1] RIKEN Systems and Structural Biology Center, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan [2] Department of Cell Biology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan [3] JST, Research Acceleration Program, Membrane Protein Crystallography Project, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan [4] Division of Molecular Biosciences, Membrane Protein Crystallography Group, Imperial College, London SW7 2AZ, UK [5] Diamond Light Source, Harwell Science and Innovation Campus, Chilton, Didcot, Oxfordshire OX11 0DE, UK [6] RIKEN SPring-8 Center, Harima Institute, Kouto, Sayo, Hyogo 679-5148, Japan. ; RIKEN SPring-8 Center, Harima Institute, Kouto, Sayo, Hyogo 679-5148, Japan. ; 1] Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan [2] Department of Integrated Molecular Science on Metabolic Diseases, 22nd Century Medical and Research Center, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan [3] CREST, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan. ; 1] RIKEN Systems and Structural Biology Center, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan [2] Department of Biophysics and Biochemistry and Laboratory of Structural Biology, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan [3] RIKEN Structural Biology Laboratory, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25855295" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Crystallography, X-Ray ; Histidine/chemistry/metabolism ; Humans ; Models, Molecular ; Molecular Sequence Data ; Protein Conformation ; Receptors, Adiponectin/*chemistry/metabolism ; Structure-Activity Relationship ; Zinc/metabolism
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  • 83
    Publication Date: 2015-09-17
    Description: The elucidation of factors that activate the regeneration of the adult mammalian heart is of major scientific and therapeutic importance. Here we found that epicardial cells contain a potent cardiogenic activity identified as follistatin-like 1 (Fstl1). Epicardial Fstl1 declines following myocardial infarction and is replaced by myocardial expression. Myocardial Fstl1 does not promote regeneration, either basally or upon transgenic overexpression. Application of the human Fstl1 protein (FSTL1) via an epicardial patch stimulates cell cycle entry and division of pre-existing cardiomyocytes, improving cardiac function and survival in mouse and swine models of myocardial infarction. The data suggest that the loss of epicardial FSTL1 is a maladaptive response to injury, and that its restoration would be an effective way to reverse myocardial death and remodelling following myocardial infarction in humans.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4762253/" 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/PMC4762253/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wei, Ke -- Serpooshan, Vahid -- Hurtado, Cecilia -- Diez-Cunado, Marta -- Zhao, Mingming -- Maruyama, Sonomi -- Zhu, Wenhong -- Fajardo, Giovanni -- Noseda, Michela -- Nakamura, Kazuto -- Tian, Xueying -- Liu, Qiaozhen -- Wang, Andrew -- Matsuura, Yuka -- Bushway, Paul -- Cai, Wenqing -- Savchenko, Alex -- Mahmoudi, Morteza -- Schneider, Michael D -- van den Hoff, Maurice J B -- Butte, Manish J -- Yang, Phillip C -- Walsh, Kenneth -- Zhou, Bin -- Bernstein, Daniel -- Mercola, Mark -- Ruiz-Lozano, Pilar -- 5UM1 HL113456/HL/NHLBI NIH HHS/ -- HL065484/HL/NHLBI NIH HHS/ -- HL108176/HL/NHLBI NIH HHS/ -- HL113601/HL/NHLBI NIH HHS/ -- HL116591/HL/NHLBI NIH HHS/ -- K08 AI079268/AI/NIAID NIH HHS/ -- P01 HL098053/HL/NHLBI NIH HHS/ -- P30 AR061303/AR/NIAMS NIH HHS/ -- P30 CA030199/CA/NCI NIH HHS/ -- R01 HL086879/HL/NHLBI NIH HHS/ -- R01 HL113601/HL/NHLBI NIH HHS/ -- UM1 HL113456/HL/NHLBI NIH HHS/ -- England -- Nature. 2015 Sep 24;525(7570):479-85. doi: 10.1038/nature15372. Epub 2015 Sep 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bioengineering, University of California, San Diego, La Jolla, California 92037, USA. ; Sanford-Burnham-Prebys Medical Discovery Institute, 10901 N. Torrey Pines Road, La Jolla, California 92037, USA. ; Stanford Cardiovascular Institute and Department of Pediatrics, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, California 94305, USA. ; Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Massachusetts 02118, USA. ; Imperial College London, Faculty of Medicine, Imperial Centre for Translational and Experimental Medicine, Du Cane Road, London W12 0NN, UK. ; Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, and Shanghai Institutes for Biological Sciences, Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China. ; Nanotechnology Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, 1417613151 Tehran, Iran. ; Academic Medical Center. Dept Anatomy, Embryology and Physiology. Meibergdreef 15. 1105AZ Amsterdam, The Netherlands. ; CAS Center for Excellence in Brain Science, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26375005" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Cycle/drug effects ; Cell Proliferation/drug effects ; Culture Media, Conditioned/pharmacology ; Female ; Follistatin-Related Proteins/genetics/*metabolism ; Humans ; Male ; Mice ; Myoblasts, Cardiac/cytology/drug effects ; Myocardial Infarction/genetics/metabolism/pathology/physiopathology ; Myocardium/*metabolism ; Myocytes, Cardiac/cytology/drug effects/metabolism ; Pericardium/cytology/drug effects/*growth & development/*metabolism ; Rats ; *Regeneration/drug effects ; Signal Transduction ; Swine ; Transgenes/genetics
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  • 84
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    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2015-12-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weir, Kirsten -- England -- Nature. 2015 Dec 17;528(7582):S130-1. doi: 10.1038/528S130a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26672786" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Proliferation ; Chronic Disease/prevention & control/therapy ; DNA Damage ; Growth Differentiation Factor 15/metabolism ; Humans ; Inflammation/*complications/microbiology/pathology/therapy ; Male ; Mice ; Oxidative Stress ; Prostatic Neoplasms/*etiology/microbiology/*pathology/prevention & control ; Prostatitis/*complications/microbiology/pathology/therapy ; Rats
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  • 85
    Publication Date: 2015-11-27
    Description: Non-invasive imaging deep into organs at microscopic scales remains an open quest in biomedical imaging. Although optical microscopy is still limited to surface imaging owing to optical wave diffusion and fast decorrelation in tissue, revolutionary approaches such as fluorescence photo-activated localization microscopy led to a striking increase in resolution by more than an order of magnitude in the last decade. In contrast with optics, ultrasonic waves propagate deep into organs without losing their coherence and are much less affected by in vivo decorrelation processes. However, their resolution is impeded by the fundamental limits of diffraction, which impose a long-standing trade-off between resolution and penetration. This limits clinical and preclinical ultrasound imaging to a sub-millimetre scale. Here we demonstrate in vivo that ultrasound imaging at ultrafast frame rates (more than 500 frames per second) provides an analogue to optical localization microscopy by capturing the transient signal decorrelation of contrast agents--inert gas microbubbles. Ultrafast ultrasound localization microscopy allowed both non-invasive sub-wavelength structural imaging and haemodynamic quantification of rodent cerebral microvessels (less than ten micrometres in diameter) more than ten millimetres below the tissue surface, leading to transcranial whole-brain imaging within short acquisition times (tens of seconds). After intravenous injection, single echoes from individual microbubbles were detected through ultrafast imaging. Their localization, not limited by diffraction, was accumulated over 75,000 images, yielding 1,000,000 events per coronal plane and statistically independent pixels of ten micrometres in size. Precise temporal tracking of microbubble positions allowed us to extract accurately in-plane velocities of the blood flow with a large dynamic range (from one millimetre per second to several centimetres per second). These results pave the way for deep non-invasive microscopy in animals and humans using ultrasound. We anticipate that ultrafast ultrasound localization microscopy may become an invaluable tool for the fundamental understanding and diagnostics of various disease processes that modify the microvascular blood flow, such as cancer, stroke and arteriosclerosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Errico, Claudia -- Pierre, Juliette -- Pezet, Sophie -- Desailly, Yann -- Lenkei, Zsolt -- Couture, Olivier -- Tanter, Mickael -- England -- Nature. 2015 Nov 26;527(7579):499-502. doi: 10.1038/nature16066.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉INSERM, Institut Langevin, 1 rue Jussieu, 75005 Paris, France. ; Institut Langevin, ESPCI-ParisTech, PSL Research University, 1 rue Jussieu, 75005 Paris, France. ; CNRS UMR 7587, 1 rue Jussieu, 75005 Paris, France. ; CNRS, UMR 8249, 10 rue Vauquelin, 75005 Paris, France. ; Brain Plasticity Unit, ESPCI-ParisTech, PSL Research University, 10 rue Vauquelin, 75005 Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26607546" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*blood supply/cytology ; Contrast Media ; Male ; Microbubbles ; Microscopy/*methods ; *Microvessels ; Molecular Imaging/*methods ; Optics and Photonics ; Rats ; Rats, Sprague-Dawley ; Time Factors ; Ultrasonics/*methods
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  • 86
    Publication Date: 2015-10-04
    Description: Structural variants are implicated in numerous diseases and make up the majority of varying nucleotides among human genomes. Here we describe an integrated set of eight structural variant classes comprising both balanced and unbalanced variants, which we constructed using short-read DNA sequencing data and statistically phased onto haplotype blocks in 26 human populations. Analysing this set, we identify numerous gene-intersecting structural variants exhibiting population stratification and describe naturally occurring homozygous gene knockouts that suggest the dispensability of a variety of human genes. We demonstrate that structural variants are enriched on haplotypes identified by genome-wide association studies and exhibit enrichment for expression quantitative trait loci. Additionally, we uncover appreciable levels of structural variant complexity at different scales, including genic loci subject to clusters of repeated rearrangement and complex structural variants with multiple breakpoints likely to have formed through individual mutational events. Our catalogue will enhance future studies into structural variant demography, functional impact and disease association.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4617611/" 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/PMC4617611/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sudmant, Peter H -- Rausch, Tobias -- Gardner, Eugene J -- Handsaker, Robert E -- Abyzov, Alexej -- Huddleston, John -- Zhang, Yan -- Ye, Kai -- Jun, Goo -- Hsi-Yang Fritz, Markus -- Konkel, Miriam K -- Malhotra, Ankit -- Stutz, Adrian M -- Shi, Xinghua -- Paolo Casale, Francesco -- Chen, Jieming -- Hormozdiari, Fereydoun -- Dayama, Gargi -- Chen, Ken -- Malig, Maika -- Chaisson, Mark J P -- Walter, Klaudia -- Meiers, Sascha -- Kashin, Seva -- Garrison, Erik -- Auton, Adam -- Lam, Hugo Y K -- Jasmine Mu, Xinmeng -- Alkan, Can -- Antaki, Danny -- Bae, Taejeong -- Cerveira, Eliza -- Chines, Peter -- Chong, Zechen -- Clarke, Laura -- Dal, Elif -- Ding, Li -- Emery, Sarah -- Fan, Xian -- Gujral, Madhusudan -- Kahveci, Fatma -- Kidd, Jeffrey M -- Kong, Yu -- Lameijer, Eric-Wubbo -- McCarthy, Shane -- Flicek, Paul -- Gibbs, Richard A -- Marth, Gabor -- Mason, Christopher E -- Menelaou, Androniki -- Muzny, Donna M -- Nelson, Bradley J -- Noor, Amina -- Parrish, Nicholas F -- Pendleton, Matthew -- Quitadamo, Andrew -- Raeder, Benjamin -- Schadt, Eric E -- Romanovitch, Mallory -- Schlattl, Andreas -- Sebra, Robert -- Shabalin, Andrey A -- Untergasser, Andreas -- Walker, Jerilyn A -- Wang, Min -- Yu, Fuli -- Zhang, Chengsheng -- Zhang, Jing -- Zheng-Bradley, Xiangqun -- Zhou, Wanding -- Zichner, Thomas -- Sebat, Jonathan -- Batzer, Mark A -- McCarroll, Steven A -- 1000 Genomes Project Consortium -- Mills, Ryan E -- Gerstein, Mark B -- Bashir, Ali -- Stegle, Oliver -- Devine, Scott E -- Lee, Charles -- Eichler, Evan E -- Korbel, Jan O -- P01HG007497/HG/NHGRI NIH HHS/ -- R01 CA166661/CA/NCI NIH HHS/ -- R01 HG002385/HG/NHGRI NIH HHS/ -- R01 HG002898/HG/NHGRI NIH HHS/ -- R01CA166661/CA/NCI NIH HHS/ -- R01GM59290/GM/NIGMS NIH HHS/ -- R01HG002898/HG/NHGRI NIH HHS/ -- R01HG007068/HG/NHGRI NIH HHS/ -- RR029676-01/RR/NCRR NIH HHS/ -- RR19895/RR/NCRR NIH HHS/ -- T32 GM008666/GM/NIGMS NIH HHS/ -- U41 HG007497/HG/NHGRI NIH HHS/ -- U41HG007497/HG/NHGRI NIH HHS/ -- WT085532/Z/08/Z/Wellcome Trust/United Kingdom -- WT104947/Z/14/Z/Wellcome Trust/United Kingdom -- England -- Nature. 2015 Oct 1;526(7571):75-81. doi: 10.1038/nature15394.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genome Sciences, University of Washington, 3720 15th Avenue NE, Seattle, Washington 98195-5065, USA. ; European Molecular Biology Laboratory (EMBL), Genome Biology Unit, Meyerhofstrasse 1, 69117 Heidelberg, Germany. ; Institute for Genome Sciences, University of Maryland School of Medicine, 801 W Baltimore Street, Baltimore, Maryland 21201, USA. ; Department of Genetics, Harvard Medical School, Boston, 25 Shattuck Street, Boston, Massachusetts 02115, USA. ; Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, 415 Main Street, Cambridge, Massachusetts 02142, USA. ; Department of Health Sciences Research, Center for Individualized Medicine, Mayo Clinic, 200 First Street SW, Rochester, Minnesota 55905, USA. ; Howard Hughes Medical Institute, University of Washington, Seattle, Washington 98195, USA. ; Program in Computational Biology and Bioinformatics, Yale University, BASS 432 &437, 266 Whitney Avenue, New Haven, Connecticut 06520, USA. ; Department of Molecular Biophysics and Biochemistry, School of Medicine, Yale University, 266 Whitney Avenue, New Haven, Connecticut 06520, USA. ; The Genome Institute, Washington University School of Medicine, 4444 Forest Park Avenue, St Louis, Missouri 63108, USA. ; Department of Genetics, Washington University in St Louis, 4444 Forest Park Avenue, St Louis, Missouri 63108, USA. ; Department of Biostatistics and Center for Statistical Genetics, University of Michigan, 1415 Washington Heights, Ann Arbor, Michigan 48109, USA. ; Human Genetics Center, School of Public Health, The University of Texas Health Science Center at Houston, 1200 Pressler St., Houston, Texas 77030, USA. ; Department of Biological Sciences, Louisiana State University, 202 Life Sciences Building, Baton Rouge, Louisiana 70803, USA. ; The Jackson Laboratory for Genomic Medicine, 10 Discovery 263 Farmington Avenue, Farmington, Connecticut 06030, USA. ; Department of Bioinformatics and Genomics, University of North Carolina at Charlotte, 9201 University City Blvd., Charlotte, North Carolina 28223, USA. ; European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1SD, UK. ; Integrated Graduate Program in Physical and Engineering Biology, Yale University, New Haven, Connecticut 06520, USA. ; Department of Computational Medicine &Bioinformatics, University of Michigan, 500 S. State Street, Ann Arbor, Michigan 48109, USA. ; The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA. ; The Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1SA, UK. ; Department of Biology, Boston College, 355 Higgins Hall, 140 Commonwealth Avenue, Chestnut Hill, Massachusetts 02467, USA. ; Department of Genetics, Albert Einstein College of Medicine, 1301 Morris Park Avenue, Bronx, New York 10461, USA. ; Bina Technologies, Roche Sequencing, 555 Twin Dolphin Drive, Redwood City, California 94065, USA. ; Cancer Program, Broad Institute of MIT and Harvard, 415 Main Street, Cambridge, Massachusetts 02142, USA. ; Department of Computer Engineering, Bilkent University, 06800 Ankara, Turkey. ; University of California San Diego (UCSD), 9500 Gilman Drive, La Jolla, California 92093, USA. ; National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892 USA. ; Department of Medicine, Washington University in St Louis, 4444 Forest Park Avenue, St Louis, Missouri 63108, USA. ; Siteman Cancer Center, 660 South Euclid Avenue, St Louis, Missouri 63110, USA. ; Department of Human Genetics, University of Michigan, 1241 Catherine Street, Ann Arbor, Michigan 48109, USA. ; Molecular Epidemiology, Leiden University Medical Center, Leiden 2300RA, The Netherlands. ; Baylor College of Medicine, 1 Baylor Plaza, Houston, Texas 77030, USA. ; The Department of Physiology and Biophysics and the HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, 1305 York Avenue, Weill Cornell Medical College, New York, New York 10065, USA. ; The Feil Family Brain and Mind Research Institute, 413 East 69th St, Weill Cornell Medical College, New York, New York 10065, USA. ; University of Oxford, 1 South Parks Road, Oxford OX3 9DS, UK. ; Department of Medical Genetics, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, 3584 CG, The Netherlands. ; Department of Genetics and Genomic Sciences, Icahn School of Medicine, New York School of Natural Sciences, 1428 Madison Avenue, New York, New York 10029, USA. ; Institute for Virus Research, Kyoto University, 53 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan. ; Center for Biomarker Research and Precision Medicine, Virginia Commonwealth University, 1112 East Clay Street, McGuire Hall, Richmond, Virginia 23298-0581, USA. ; Zentrum fur Molekulare Biologie, University of Heidelberg, Im Neuenheimer Feld 282, 69120 Heidelberg, Germany. ; Department of Computer Science, Yale University, 51 Prospect Street, New Haven, Connecticut 06511, USA. ; Department of Graduate Studies - Life Sciences, Ewha Womans University, Ewhayeodae-gil, Seodaemun-gu, Seoul 120-750, South Korea.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26432246" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Genetic Predisposition to Disease ; Genetic Variation/*genetics ; Genetics, Medical ; Genetics, Population ; Genome, Human/*genetics ; Genome-Wide Association Study ; Genomics ; Genotype ; Haplotypes/genetics ; Homozygote ; Humans ; Molecular Sequence Data ; Mutation Rate ; *Physical Chromosome Mapping ; Polymorphism, Single Nucleotide/genetics ; Quantitative Trait Loci/genetics ; Sequence Analysis, DNA ; Sequence Deletion/genetics
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  • 87
    Publication Date: 2015-02-13
    Description: Grid cells are neurons with periodic spatial receptive fields (grids) that tile two-dimensional space in a hexagonal pattern. To provide useful information about location, grids must be stably anchored to an external reference frame. The mechanisms underlying this anchoring process have remained elusive. Here we show in differently sized familiar square enclosures that the axes of the grids are offset from the walls by an angle that minimizes symmetry with the borders of the environment. This rotational offset is invariably accompanied by an elliptic distortion of the grid pattern. Reversing the ellipticity analytically by a shearing transformation removes the angular offset. This, together with the near-absence of rotation in novel environments, suggests that the rotation emerges through non-coaxial strain as a function of experience. The systematic relationship between rotation and distortion of the grid pattern points to shear forces arising from anchoring to specific geometric reference points as key elements of the mechanism for alignment of grid patterns to the external world.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stensola, Tor -- Stensola, Hanne -- Moser, May-Britt -- Moser, Edvard I -- England -- Nature. 2015 Feb 12;518(7538):207-12. doi: 10.1038/nature14151.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Kavli Institute for Systems Neuroscience and Centre for Neural Computation, Norwegian University of Science and Technology, Olav Kyrres gate 9, 7491 Trondheim, Norway.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25673414" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Brain Mapping ; Entorhinal Cortex/*cytology/physiology ; *Environment ; Male ; Models, Neurological ; Neurons/cytology/*physiology ; Orientation/*physiology ; Pattern Recognition, Visual/*physiology ; Rats ; Rats, Long-Evans ; Rotation ; Space Perception/*physiology ; Time Factors
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  • 88
    Publication Date: 2015-09-17
    Description: Development of functional nanoparticles can be encumbered by unanticipated material properties and biological events, which can affect nanoparticle effectiveness in complex, physiologically relevant systems. Despite the advances in bottom-up nanoengineering and surface chemistry, reductionist functionalization approaches remain inadequate in replicating the complex interfaces present in nature and cannot avoid exposure of foreign materials. Here we report on the preparation of polymeric nanoparticles enclosed in the plasma membrane of human platelets, which are a unique population of cellular fragments that adhere to a variety of disease-relevant substrates. The resulting nanoparticles possess a right-side-out unilamellar membrane coating functionalized with immunomodulatory and adhesion antigens associated with platelets. Compared to uncoated particles, the platelet membrane-cloaked nanoparticles have reduced cellular uptake by macrophage-like cells and lack particle-induced complement activation in autologous human plasma. The cloaked nanoparticles also display platelet-mimicking properties such as selective adhesion to damaged human and rodent vasculatures as well as enhanced binding to platelet-adhering pathogens. In an experimental rat model of coronary restenosis and a mouse model of systemic bacterial infection, docetaxel and vancomycin, respectively, show enhanced therapeutic efficacy when delivered by the platelet-mimetic nanoparticles. The multifaceted biointerfacing enabled by the platelet membrane cloaking method provides a new approach in developing functional nanoparticles for disease-targeted delivery.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hu, Che-Ming J -- Fang, Ronnie H -- Wang, Kuei-Chun -- Luk, Brian T -- Thamphiwatana, Soracha -- Dehaini, Diana -- Nguyen, Phu -- Angsantikul, Pavimol -- Wen, Cindy H -- Kroll, Ashley V -- Carpenter, Cody -- Ramesh, Manikantan -- Qu, Vivian -- Patel, Sherrina H -- Zhu, Jie -- Shi, William -- Hofman, Florence M -- Chen, Thomas C -- Gao, Weiwei -- Zhang, Kang -- Chien, Shu -- Zhang, Liangfang -- R01DK095168/DK/NIDDK NIH HHS/ -- R01EY25090/EY/NEI NIH HHS/ -- R01HL108735/HL/NHLBI NIH HHS/ -- R25CA153915/CA/NCI NIH HHS/ -- England -- Nature. 2015 Oct 1;526(7571):118-21. doi: 10.1038/nature15373. Epub 2015 Sep 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of NanoEngineering, University of California, San Diego, La Jolla, California 92093, USA. ; Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA. ; Department of Bioengineering, University of California, San Diego, La Jolla, California 92093, USA. ; Institute of Engineering in Medicine, University of California, San Diego, La Jolla, California 92093, USA. ; Shiley Eye Institute, University of California, San Diego, La Jolla, California 92093, USA. ; Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, USA. ; Veterans Administration Healthcare System, San Diego, California 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26374997" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anti-Bacterial Agents/*administration & dosage/pharmacokinetics ; Blood Platelets/*cytology ; Blood Vessels/cytology/metabolism/pathology ; Cell Membrane/*metabolism ; Collagen/chemistry/immunology ; Complement Activation/immunology ; Coronary Restenosis/blood/drug therapy/metabolism ; Disease Models, Animal ; Drug Delivery Systems/*methods ; Humans ; Macrophages/immunology ; Male ; Mice ; Nanoparticles/*administration & dosage/*chemistry ; *Platelet Adhesiveness ; Polymers/chemistry ; Rats ; Rats, Sprague-Dawley ; Staphylococcal Infections/blood/drug therapy/metabolism/microbiology ; Staphylococcus aureus/cytology/metabolism ; Taxoids/administration & dosage/pharmacokinetics ; Unilamellar Liposomes/chemistry ; Vancomycin/administration & dosage/pharmacokinetics
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  • 89
    Publication Date: 2015-07-03
    Description: Sex determination in animals is amazingly plastic. Vertebrates display contrasting strategies ranging from complete genetic control of sex (genotypic sex determination) to environmentally determined sex (for example, temperature-dependent sex determination). Phylogenetic analyses suggest frequent evolutionary transitions between genotypic and temperature-dependent sex determination in environmentally sensitive lineages, including reptiles. These transitions are thought to involve a genotypic system becoming sensitive to temperature, with sex determined by gene-environment interactions. Most mechanistic models of transitions invoke a role for sex reversal. Sex reversal has not yet been demonstrated in nature for any amniote, although it occurs in fish and rarely in amphibians. Here we make the first report of reptile sex reversal in the wild, in the Australian bearded dragon (Pogona vitticeps), and use sex-reversed animals to experimentally induce a rapid transition from genotypic to temperature-dependent sex determination. Controlled mating of normal males to sex-reversed females produces viable and fertile offspring whose phenotypic sex is determined solely by temperature (temperature-dependent sex determination). The W sex chromosome is eliminated from this lineage in the first generation. The instantaneous creation of a lineage of ZZ temperature-sensitive animals reveals a novel, climate-induced pathway for the rapid transition between genetic and temperature-dependent sex determination, and adds to concern about adaptation to rapid global climate change.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holleley, Clare E -- O'Meally, Denis -- Sarre, Stephen D -- Marshall Graves, Jennifer A -- Ezaz, Tariq -- Matsubara, Kazumi -- Azad, Bhumika -- Zhang, Xiuwen -- Georges, Arthur -- England -- Nature. 2015 Jul 2;523(7558):79-82. doi: 10.1038/nature14574.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Applied Ecology, University of Canberra, Canberra, Australian Capital Territory 2601, Australia. ; 1] Institute for Applied Ecology, University of Canberra, Canberra, Australian Capital Territory 2601, Australia [2] School of Life Science, La Trobe University, Melbourne, Victoria 3086, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26135451" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptation, Physiological ; Animals ; Australia ; Female ; Male ; Molecular Sequence Data ; Reptiles ; Sex Chromosomes/genetics ; Sex Determination Processes/genetics/*physiology ; Sex Ratio ; *Temperature
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  • 90
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    Unknown
    Nature Publishing Group (NPG)
    Publication Date: 2015-06-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holmes, David -- England -- Nature. 2015 Jun 25;522(7557):S63. doi: 10.1038/522S63a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26107101" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Behavior, Addictive/classification/genetics/physiopathology/prevention & ; control/rehabilitation ; Brain/drug effects/physiology/physiopathology ; Dopamine Antagonists/pharmacology/therapeutic use ; Gene-Environment Interaction ; Genetic Predisposition to Disease/genetics ; Humans ; Mice ; Molecular Targeted Therapy ; Optogenetics ; Rats ; Receptors, Dopamine/metabolism ; Reward ; Secondary Prevention/methods ; *Substance-Related Disorders/classification/genetics/physiopathology/prevention & ; control/rehabilitation ; Vaccines/economics/therapeutic use
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  • 91
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    Nature Publishing Group (NPG)
    Publication Date: 2015-06-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bourzac, Katherine -- England -- Nature. 2015 Jun 25;522(7557):S50-2. doi: 10.1038/522S50a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26107095" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aging/physiology ; Alcoholism/physiopathology/psychology/rehabilitation ; Animals ; Behavior, Addictive/*physiopathology/psychology/rehabilitation ; Brain/*physiology/*physiopathology ; Child ; Disease Models, Animal ; Humans ; *Neural Pathways ; Rats
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  • 92
    Publication Date: 2015-09-17
    Description: Multicellular assemblages of microorganisms are ubiquitous in nature, and the proximity afforded by aggregation is thought to permit intercellular metabolic coupling that can accommodate otherwise unfavourable reactions. Consortia of methane-oxidizing archaea and sulphate-reducing bacteria are a well-known environmental example of microbial co-aggregation; however, the coupling mechanisms between these paired organisms is not well understood, despite the attention given them because of the global significance of anaerobic methane oxidation. Here we examined the influence of interspecies spatial positioning as it relates to biosynthetic activity within structurally diverse uncultured methane-oxidizing consortia by measuring stable isotope incorporation for individual archaeal and bacterial cells to constrain their potential metabolic interactions. In contrast to conventional models of syntrophy based on the passage of molecular intermediates, cellular activities were found to be independent of both species intermixing and distance between syntrophic partners within consortia. A generalized model of electric conductivity between co-associated archaea and bacteria best fit the empirical data. Combined with the detection of large multi-haem cytochromes in the genomes of methanotrophic archaea and the demonstration of redox-dependent staining of the matrix between cells in consortia, these results provide evidence for syntrophic coupling through direct electron transfer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McGlynn, Shawn E -- Chadwick, Grayson L -- Kempes, Christopher P -- Orphan, Victoria J -- England -- Nature. 2015 Oct 22;526(7574):531-5. doi: 10.1038/nature15512. Epub 2015 Sep 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California 91125, USA. ; Exobiology Branch, National Aeronautics and Space Administration Ames Research Center, Moffett Field, California 94035, USA. ; Control and Dynamical Systems, California Institute of Technology, Pasadena, California 91125, USA. ; SETI Institute, Mountain View, California 94034, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26375009" target="_blank"〉PubMed〈/a〉
    Keywords: Anaerobiosis ; Archaea/cytology/*metabolism ; Cytochromes/genetics/metabolism/ultrastructure ; Deltaproteobacteria/cytology/*metabolism ; Diffusion ; Electron Transport ; Genome, Archaeal/genetics ; Genome, Bacterial/genetics ; Heme/metabolism ; Methane/*metabolism ; Microbiota/physiology ; Models, Biological ; Molecular Sequence Data ; *Single-Cell Analysis ; Sulfates/metabolism ; *Symbiosis
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  • 93
    Publication Date: 2015-01-21
    Description: Gradual accumulation of evidence is thought to be fundamental for decision-making, and its neural correlates have been found in several brain regions. Here we develop a generalizable method to measure tuning curves that specify the relationship between neural responses and mentally accumulated evidence, and apply it to distinguish the encoding of decision variables in posterior parietal cortex and prefrontal cortex (frontal orienting fields, FOF). We recorded the firing rates of neurons in posterior parietal cortex and FOF from rats performing a perceptual decision-making task. Classical analyses uncovered correlates of accumulating evidence, similar to previous observations in primates and also similar across the two regions. However, tuning curve assays revealed that while the posterior parietal cortex encodes a graded value of the accumulating evidence, the FOF has a more categorical encoding that indicates, throughout the trial, the decision provisionally favoured by the evidence accumulated so far. Contrary to current views, this suggests that premotor activity in the frontal cortex does not have a role in the accumulation process, but instead has a more categorical function, such as transforming accumulated evidence into a discrete choice. To probe causally the role of FOF activity, we optogenetically silenced it during different time points of the trial. Consistent with a role in committing to a categorical choice at the end of the evidence accumulation process, but not consistent with a role during the accumulation itself, a behavioural effect was observed only when FOF silencing occurred at the end of the perceptual stimulus. Our results place important constraints on the circuit logic of brain regions involved in decision-making.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hanks, Timothy D -- Kopec, Charles D -- Brunton, Bingni W -- Duan, Chunyu A -- Erlich, Jeffrey C -- Brody, Carlos D -- F32 MH098572/MH/NIMH NIH HHS/ -- F32MH098572/MH/NIMH NIH HHS/ -- T32MH065214/MH/NIMH NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Apr 9;520(7546):220-3. doi: 10.1038/nature14066. Epub 2015 Jan 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Princeton Neuroscience Institute, Princeton University, Princeton, New Jersey 08544, USA [2] Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA. ; 1] Princeton Neuroscience Institute, Princeton University, Princeton, New Jersey 08544, USA [2] Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA [3] Departments of Biology and Applied Mathematics, University of Washington, Seattle, Washington 98105, USA. ; 1] Princeton Neuroscience Institute, Princeton University, Princeton, New Jersey 08544, USA [2] Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA [3] NYU-ECNU Institute of Brain and Cognitive Science, NYU-Shanghai, Shanghai 200122, China. ; 1] Princeton Neuroscience Institute, Princeton University, Princeton, New Jersey 08544, USA [2] Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA [3] Howard Hughes Medical Institute, Princeton University, Princeton, New Jersey 08544, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25600270" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Decision Making/*physiology ; Halorhodopsins/metabolism ; Male ; Neural Pathways ; Neurons/physiology ; Parietal Lobe/cytology/*physiology ; Prefrontal Cortex/cytology/*physiology ; Rats ; Rats, Long-Evans
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  • 94
    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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  • 95
    Publication Date: 2015-03-07
    Description: Human higher cognition is attributed to the evolutionary expansion and elaboration of the human cerebral cortex. However, the genetic mechanisms contributing to these developmental changes are poorly understood. We used comparative epigenetic profiling of human, rhesus macaque, and mouse corticogenesis to identify promoters and enhancers that have gained activity in humans. These gains are significantly enriched in modules of coexpressed genes in the cortex that function in neuronal proliferation, migration, and cortical-map organization. Gain-enriched modules also showed correlated gene expression patterns and similar transcription factor binding site enrichments in promoters and enhancers, suggesting that they are connected by common regulatory mechanisms. Our results reveal coordinated patterns of potential regulatory changes associated with conserved developmental processes during corticogenesis, providing insight into human cortical evolution.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4426903/" 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/PMC4426903/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reilly, Steven K -- Yin, Jun -- Ayoub, Albert E -- Emera, Deena -- Leng, Jing -- Cotney, Justin -- Sarro, Richard -- Rakic, Pasko -- Noonan, James P -- 099175/Z/12/Z/Wellcome Trust/United Kingdom -- DA023999/DA/NIDA NIH HHS/ -- F32 GM106628/GM/NIGMS NIH HHS/ -- GM094780/GM/NIGMS NIH HHS/ -- NS014841/NS/NINDS NIH HHS/ -- P30 CA016359/CA/NCI NIH HHS/ -- R01 DA023999/DA/NIDA NIH HHS/ -- R01 GM094780/GM/NIGMS NIH HHS/ -- T32 GM007223/GM/NIGMS NIH HHS/ -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2015 Mar 6;347(6226):1155-9. doi: 10.1126/science.1260943.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Yale School of Medicine, New Haven, CT 06510, USA. ; Kavli Institute for Neuroscience, Yale School of Medicine, New Haven, CT 06510, USA. Department of Neurobiology, Yale School of Medicine, New Haven, CT 06510, USA. ; Department of Genetics, Yale School of Medicine, New Haven, CT 06510, USA. Program in Computational Biology and Bioinformatics, Yale University, New Haven, CT 06511, USA. ; Department of Genetics, Yale School of Medicine, New Haven, CT 06510, USA. Kavli Institute for Neuroscience, Yale School of Medicine, New Haven, CT 06510, USA. Program in Computational Biology and Bioinformatics, Yale University, New Haven, CT 06511, USA. james.noonan@yale.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25745175" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cerebral Cortex/*growth & development ; Enhancer Elements, Genetic/*genetics ; *Epigenesis, Genetic ; *Evolution, Molecular ; *Gene Expression Regulation, Developmental ; Humans ; Macaca mulatta ; Mice ; Organogenesis/*genetics ; Promoter Regions, Genetic/*genetics ; Rats
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  • 96
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2015-10-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Krupic, Julija -- New York, N.Y. -- Science. 2015 Oct 2;350(6256):47. doi: 10.1126/science.aad3002.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell and Developmental Biology, University College London, London WC1E 6BT, UK. j.krupic@ucl.ac.uk.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26430112" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Behavior, Animal ; Brain/*physiology/*ultrastructure ; *Distance Perception ; Fourier Analysis ; Humans ; Metric System ; Neurons/*physiology/*ultrastructure ; Rats ; Spatial Navigation/*physiology
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  • 97
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2015-10-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kupferschmidt, Kai -- New York, N.Y. -- Science. 2015 Oct 16;350(6258):263-4. doi: 10.1126/science.350.6258.263.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26472886" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cerebral Cortex/*ultrastructure ; *Computer Simulation ; Investments ; *Models, Neurological ; Neurons/*ultrastructure ; Neurosciences/*economics ; Rats
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  • 98
    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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  • 99
    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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 100
    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
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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