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  • Mutation  (126)
  • American Association for the Advancement of Science (AAAS)  (126)
  • American Chemical Society (ACS)
  • PANGAEA
  • Springer Nature
  • 2010-2014  (126)
  • 1980-1984
  • 1925-1929
  • 2013  (55)
  • 2011  (71)
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  • American Association for the Advancement of Science (AAAS)  (126)
  • American Chemical Society (ACS)
  • PANGAEA
  • Springer Nature
  • Nature Publishing Group (NPG)  (46)
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  • 2010-2014  (126)
  • 1980-1984
  • 1925-1929
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  • 1
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    Influence of inositol pyrophosphates on cellular energy dynamics (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-11-15
    Description: With its high-energy phosphate bonds, adenosine triphosphate (ATP) is the main intracellular energy carrier. It also functions in most signaling pathways, as a phosphate donor or a precursor for cyclic adenosine monophosphate. We show here that inositol pyrophosphates participate in the control of intracellular ATP concentration. Yeasts devoid of inositol pyrophosphates have dysfunctional mitochondria but, paradoxically, contain four times as much ATP because of increased glycolysis. We demonstrate that inositol pyrophosphates control the activity of the major glycolytic transcription factor GCR1. Thus, inositol pyrophosphates regulate ATP concentration by altering the glycolytic/mitochondrial metabolic ratio. Metabolic reprogramming through inositol pyrophosphates is an evolutionary conserved mechanism that is also preserved in mammalian systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Szijgyarto, Zsolt -- Garedew, Assegid -- Azevedo, Cristina -- Saiardi, Adolfo -- G1001704/Medical Research Council/United Kingdom -- MC_U122680443/Medical Research Council/United Kingdom -- PG/10/72/28449/British Heart Foundation/United Kingdom -- New York, N.Y. -- Science. 2011 Nov 11;334(6057):802-5. doi: 10.1126/science.1211908.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cell Biology Unit, Medical Research Council Laboratory for Molecular Cell Biology, and Department of Cell and Developmental Biology, University College London, Gower Street, London WC1E 6BT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22076377" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Diphosphate/metabolism ; Adenosine Monophosphate/metabolism ; Adenosine Triphosphate/*metabolism ; DNA-Binding Proteins/chemistry/genetics/*metabolism ; *Energy Metabolism ; Gene Expression Regulation, Fungal ; Glucose/metabolism ; Glycolysis/genetics ; Inositol Phosphates/*metabolism ; Mitochondria/metabolism ; Mutation ; NAD/metabolism ; Oxidation-Reduction ; Oxidative Phosphorylation ; Oxygen Consumption ; Phosphorylation ; Recombinant Fusion Proteins/metabolism ; Saccharomyces cerevisiae/genetics/growth & development/*metabolism ; Saccharomyces cerevisiae Proteins/chemistry/genetics/*metabolism ; Transcription Factors/chemistry/genetics/*metabolism
    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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  • 2
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    Clr4/Suv39 and RNA quality control factors cooperate to trigger RNAi and suppress antisense RNA (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-26
    Description: Pervasive transcription of eukaryotic genomes generates a plethora of noncoding RNAs. In fission yeast, the heterochromatin factor Clr4/Suv39 methyltransferase facilitates RNA interference (RNAi)-mediated processing of centromeric transcripts into small interfering RNAs (siRNAs). Clr4 also mediates degradation of antisense RNAs at euchromatic loci, but the underlying mechanism has remained elusive. We show that Clr4 and the RNAi effector RITS (RNA-induced transcriptional silencing) interact with Mlo3, a protein related to mRNA quality control and export factors. Loss of Clr4 impairs RITS interaction with Mlo3, which is required for centromeric siRNA production and antisense suppression. Mlo3 also interacts with the RNA surveillance factor TRAMP, which suppresses antisense RNAs targeted by Clr4 and RNAi. These findings link Clr4 to RNA quality control machinery and suggest a pathway for processing potentially deleterious RNAs through the coordinated actions of RNAi and other RNA processing activities.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Ke -- Fischer, Tamas -- Porter, Rebecca L -- Dhakshnamoorthy, Jothy -- Zofall, Martin -- Zhou, Ming -- Veenstra, Timothy -- Grewal, Shiv I S -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2011 Mar 25;331(6024):1624-7. doi: 10.1126/science.1198712.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Biochemistry and Molecular Biology, National Cancer Institute/NIH, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21436456" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Cycle Proteins/genetics/*metabolism ; Centromere/metabolism ; Euchromatin/metabolism ; Histones/metabolism ; Methylation ; Methyltransferases/genetics/*metabolism ; Mutation ; *RNA Interference ; RNA Processing, Post-Transcriptional ; RNA, Antisense/*metabolism ; RNA, Fungal/*metabolism ; RNA-Binding Proteins/metabolism ; Saccharomyces cerevisiae Proteins/metabolism ; Schizosaccharomyces/*genetics/*metabolism ; Schizosaccharomyces pombe Proteins/genetics/*metabolism
    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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  • 3
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    Cell biology. Rhodopsin as thermosensor? (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Minke, Baruch -- Peters, Maximilian -- New York, N.Y. -- Science. 2011 Mar 11;331(6022):1272-3. doi: 10.1126/science.1203482.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Neurobiology, The Institute of Medical Research Israel-Canada (IMRIC), The Hebrew University, Jerusalem, Israel. baruchm@ekmd.huji.ac.il〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21393531" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Drosophila Proteins/genetics/metabolism/*physiology ; Drosophila melanogaster/genetics/*physiology ; Larva/physiology ; Light ; Mutation ; Photoreceptor Cells, Invertebrate/physiology ; Rhodopsin/chemistry/genetics/*physiology ; TRPC Cation Channels/metabolism ; Temperature ; *Thermosensing
    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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  • 4
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    Cancer. New epigenetic drivers of cancers (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Elsasser, Simon J -- Allis, C David -- Lewis, Peter W -- New York, N.Y. -- Science. 2011 Mar 4;331(6021):1145-6. doi: 10.1126/science.1203280.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Chromatin Biology and Epigenetics, Rockefeller University, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21385704" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/*genetics/metabolism ; Chromatin/metabolism ; Chromatin Assembly and Disassembly/genetics ; DNA Helicases/*genetics/metabolism ; *Epigenesis, Genetic ; *Genes, Tumor Suppressor ; Histones/metabolism ; Humans ; Mutation ; Neuroendocrine Tumors/*genetics/metabolism ; Nuclear Proteins/*genetics/metabolism ; Nucleosomes/metabolism ; Pancreatic Neoplasms/*genetics/metabolism ; Proto-Oncogene Proteins/*genetics/metabolism ; Signal Transduction ; TOR Serine-Threonine Kinases/metabolism
    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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  • 5
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    A midzone-based ruler adjusts chromosome compaction to anaphase spindle length (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-12
    Description: Partitioning of chromatids during mitosis requires that chromosome compaction and spindle length scale appropriately with each other. However, it is not clear whether chromosome condensation and spindle elongation are linked. Here, we find that yeast cells could cope with a 45% increase in the length of their longest chromosome arm by increasing its condensation. The spindle midzone, aurora/Ipl1 activity, and Ser10 of histone H3 mediated this response. Thus, the anaphase spindle may function as a ruler to adapt the condensation of chromatids, promoting their segregation regardless of chromosome or spindle length.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Neurohr, Gabriel -- Naegeli, Andreas -- Titos, Iris -- Theler, Dominik -- Greber, Basil -- Diez, Javier -- Gabaldon, Toni -- Mendoza, Manuel -- Barral, Yves -- New York, N.Y. -- Science. 2011 Apr 22;332(6028):465-8. doi: 10.1126/science.1201578. Epub 2011 Mar 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Genomic Regulation (CRG), Barcelona, Spain.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21393511" target="_blank"〉PubMed〈/a〉
    Keywords: Aldose-Ketose Isomerases/genetics ; *Anaphase ; Aurora Kinases ; Chromosome Segregation ; Chromosomes, Fungal/genetics/*physiology ; Histones/metabolism ; Intracellular Signaling Peptides and Proteins/genetics/metabolism ; Microtubule-Associated Proteins/genetics/metabolism ; Mutation ; Protein-Serine-Threonine Kinases/genetics/metabolism ; Saccharomyces cerevisiae/genetics/*physiology ; Saccharomyces cerevisiae Proteins/genetics/metabolism ; Spindle Apparatus/*physiology/*ultrastructure
    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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  • 6
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    Computational design of proteins targeting the conserved stem region of influenza hemagglutinin (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-05-14
    Description: We describe a general computational method for designing proteins that bind a surface patch of interest on a target macromolecule. Favorable interactions between disembodied amino acid residues and the target surface are identified and used to anchor de novo designed interfaces. The method was used to design proteins that bind a conserved surface patch on the stem of the influenza hemagglutinin (HA) from the 1918 H1N1 pandemic virus. After affinity maturation, two of the designed proteins, HB36 and HB80, bind H1 and H5 HAs with low nanomolar affinity. Further, HB80 inhibits the HA fusogenic conformational changes induced at low pH. The crystal structure of HB36 in complex with 1918/H1 HA revealed that the actual binding interface is nearly identical to that in the computational design model. Such designed binding proteins may be useful for both diagnostics and therapeutics.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3164876/" 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/PMC3164876/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fleishman, Sarel J -- Whitehead, Timothy A -- Ekiert, Damian C -- Dreyfus, Cyrille -- Corn, Jacob E -- Strauch, Eva-Maria -- Wilson, Ian A -- Baker, David -- AI057141/AI/NIAID NIH HHS/ -- AI058113/AI/NIAID NIH HHS/ -- GM080209/GM/NIGMS NIH HHS/ -- P01 AI058113/AI/NIAID NIH HHS/ -- P01 AI058113-07/AI/NIAID NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 May 13;332(6031):816-21. doi: 10.1126/science.1202617.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Washington, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21566186" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Amino Acid Sequence ; Binding Sites ; Computational Biology ; *Computer Simulation ; Hemagglutinin Glycoproteins, Influenza Virus/chemistry/*metabolism ; Hydrogen Bonding ; Hydrogen-Ion Concentration ; Hydrophobic and Hydrophilic Interactions ; *Models, Molecular ; Molecular Sequence Data ; Mutation ; Peptide Library ; Protein Binding ; Protein Conformation ; *Protein Engineering ; Protein Interaction Domains and Motifs ; Protein Structure, Secondary ; Proteins/*chemistry/genetics/*metabolism ; Software
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
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  • 7
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    Evolution. How great wings can look alike (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-08-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carroll, Sean B -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Aug 26;333(6046):1100-1. doi: 10.1126/science.1211025.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Laboratory of Molecular Biology, University of Wisconsin-Madison, 201 Bock Laboratories, Madison, WI 53706, USA. sbcarrol@facstaff.wisc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21868661" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Animals ; *Biological Evolution ; Butterflies/anatomy & histology/*genetics ; *Genes, Insect ; Genetic Variation ; Mutation ; Phenotype ; Pigmentation/*genetics ; Regulatory Sequences, Nucleic Acid ; Selection, Genetic ; Wings, Animal/*anatomy & histology
    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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  • 8
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    CRYPTOCHROME is a blue-light sensor that regulates neuronal firing rate (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-10
    Description: Light-responsive neural activity in central brain neurons is generally conveyed through opsin-based signaling from external photoreceptors. Large lateral ventral arousal neurons (lLNvs) in Drosophila melanogaster increase action potential firing within seconds in response to light in the absence of all opsin-based photoreceptors. Light-evoked changes in membrane resting potential occur in about 100 milliseconds. The light response is selective for blue wavelengths corresponding to the spectral sensitivity of CRYPTOCHROME (CRY). cry-null lines are light-unresponsive, but restored CRY expression in the lLNv rescues responsiveness. Furthermore, expression of CRY in neurons that are normally unresponsive to light confers responsiveness. The CRY-mediated light response requires a flavin redox-based mechanism and depends on potassium channel conductance, but is independent of the classical circadian CRY-TIMELESS interaction.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4418525/" 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/PMC4418525/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fogle, Keri J -- Parson, Kelly G -- Dahm, Nicole A -- Holmes, Todd C -- NS046750/NS/NINDS NIH HHS/ -- R01 GM102965/GM/NIGMS NIH HHS/ -- R01 NS046750/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2011 Mar 18;331(6023):1409-13. doi: 10.1126/science.1199702. Epub 2011 Mar 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology and Biophysics, University of California-Irvine, Irvine, CA 92697, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21385718" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; *Circadian Clocks ; Circadian Rhythm ; Compound Eye, Arthropod/physiology ; Cryptochromes/genetics/*metabolism ; Drosophila Proteins/genetics/*metabolism ; Drosophila melanogaster/genetics/*physiology ; Eye Proteins/genetics/*metabolism ; Flavins/metabolism ; Genes, Insect ; *Light ; Mutation ; Neurons/physiology ; Oxidation-Reduction ; Patch-Clamp Techniques ; Photoreceptor Cells, Invertebrate/metabolism
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Avian influenza. Warning of H5N1 resurgence surprises community (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Normile, Dennis -- New York, N.Y. -- Science. 2011 Sep 9;333(6048):1369. doi: 10.1126/science.333.6048.1369.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21903787" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Birds ; Disease Outbreaks/statistics & numerical data/veterinary ; Humans ; *Influenza A Virus, H5N1 Subtype/genetics/immunology ; Influenza Vaccines ; Influenza in Birds/*epidemiology/prevention & control/virology ; Influenza, Human/*epidemiology ; Mutation ; Poultry
    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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  • 10
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    A cell cycle phosphoproteome of the yeast centrosome (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-06-28
    Description: Centrosomes organize the bipolar mitotic spindle, and centrosomal defects cause chromosome instability. Protein phosphorylation modulates centrosome function, and we provide a comprehensive map of phosphorylation on intact yeast centrosomes (18 proteins). Mass spectrometry was used to identify 297 phosphorylation sites on centrosomes from different cell cycle stages. We observed different modes of phosphoregulation via specific protein kinases, phosphorylation site clustering, and conserved phosphorylated residues. Mutating all eight cyclin-dependent kinase (Cdk)-directed sites within the core component, Spc42, resulted in lethality and reduced centrosomal assembly. Alternatively, mutation of one conserved Cdk site within gamma-tubulin (Tub4-S360D) caused mitotic delay and aberrant anaphase spindle elongation. Our work establishes the extent and complexity of this prominent posttranslational modification in centrosome biology and provides specific examples of phosphorylation control in centrosome function.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3825980/" 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/PMC3825980/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Keck, Jamie M -- Jones, Michele H -- Wong, Catherine C L -- Binkley, Jonathan -- Chen, Daici -- Jaspersen, Sue L -- Holinger, Eric P -- Xu, Tao -- Niepel, Mario -- Rout, Michael P -- Vogel, Jackie -- Sidow, Arend -- Yates, John R 3rd -- Winey, Mark -- F32 GM086038/GM/NIGMS NIH HHS/ -- GM51312/GM/NIGMS NIH HHS/ -- MOP-64404/Canadian Institutes of Health Research/Canada -- P41 RR011823/RR/NCRR NIH HHS/ -- R01 GM051312/GM/NIGMS NIH HHS/ -- R01 GM051312-16/GM/NIGMS NIH HHS/ -- R01 GM051312-16S1/GM/NIGMS NIH HHS/ -- R01 GM062427/GM/NIGMS NIH HHS/ -- R01 HG003039/HG/NHGRI NIH HHS/ -- T32 GM008759/GM/NIGMS NIH HHS/ -- U54 RR022220/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2011 Jun 24;332(6037):1557-61. doi: 10.1126/science.1205193.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, CO 80309, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21700874" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; CDC2 Protein Kinase/metabolism ; *Cell Cycle ; Centrosome/*metabolism/ultrastructure ; Cytoskeletal Proteins/genetics/metabolism ; Fungal Proteins/chemistry/metabolism ; Fungi/metabolism ; G1 Phase ; Mitosis ; Mutation ; Phosphoproteins/genetics/metabolism ; Phosphorylation ; Protein Processing, Post-Translational ; Proteome/*metabolism ; Saccharomyces cerevisiae/cytology/genetics/growth & development/*metabolism ; Saccharomyces cerevisiae Proteins/chemistry/genetics/*metabolism ; Spindle Apparatus/metabolism/ultrastructure ; Tubulin/chemistry/metabolism
    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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  • 11
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    Virology. False positive (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, Jon -- Enserink, Martin -- New York, N.Y. -- Science. 2011 Sep 23;333(6050):1694-701. doi: 10.1126/science.333.6050.1694.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21940874" target="_blank"〉PubMed〈/a〉
    Keywords: Blood/virology ; DNA Contamination ; Endoribonucleases/genetics/metabolism ; Fatigue Syndrome, Chronic/*virology ; Humans ; Male ; Mutation ; Prostatic Neoplasms/virology ; Publishing ; Retroviridae Infections/*virology ; Xenotropic murine leukemia virus-related virus/classification/*isolation & ; purification
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 12
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    A role for Snf2-related nucleosome-spacing enzymes in genome-wide nucleosome organization (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-24
    Description: The positioning of nucleosomes within the coding regions of eukaryotic genes is aligned with respect to transcriptional start sites. This organization is likely to influence many genetic processes, requiring access to the underlying DNA. Here, we show that the combined action of Isw1 and Chd1 nucleosome-spacing enzymes is required to maintain this organization. In the absence of these enzymes, regular positioning of the majority of nucleosomes is lost. Exceptions include the region upstream of the promoter, the +1 nucleosome, and a subset of locations distributed throughout coding regions where other factors are likely to be involved. These observations indicate that adenosine triphosphate-dependent remodeling enzymes are responsible for directing the positioning of the majority of nucleosomes within the Saccharomyces cerevisiae genome.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3428865/" 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/PMC3428865/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gkikopoulos, Triantaffyllos -- Schofield, Pieta -- Singh, Vijender -- Pinskaya, Marina -- Mellor, Jane -- Smolle, Michaela -- Workman, Jerry L -- Barton, Geoffrey J -- Owen-Hughes, Tom -- 064414/Wellcome Trust/United Kingdom -- 095062/Wellcome Trust/United Kingdom -- G0900740/Medical Research Council/United Kingdom -- R01 GM047867/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Sep 23;333(6050):1758-60. doi: 10.1126/science.1206097.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Trust Centre for Gene Regulation and Expression, College of Life Sciences, University of Dundee, Dundee, DD1 5EH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21940898" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphatases/genetics/*metabolism ; Adenosine Triphosphate/metabolism ; Chromatin Assembly and Disassembly ; DNA, Fungal/genetics ; DNA-Binding Proteins/genetics/*metabolism ; Gene Expression Regulation, Fungal ; Genes, Fungal ; *Genome, Fungal ; Mutation ; Nucleosomes/*genetics/physiology/ultrastructure ; Saccharomyces cerevisiae/*genetics/physiology ; Saccharomyces cerevisiae Proteins/genetics/*metabolism ; Transcription Initiation Site
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  • 13
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    Different B cell populations mediate early and late memory during an endogenous immune response (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-02-12
    Description: Memory B cells formed in response to microbial antigens provide immunity to later infections; however, the inability to detect rare endogenous antigen-specific cells limits current understanding of this process. Using an antigen-based technique to enrich these cells, we found that immunization with a model protein generated B memory cells that expressed isotype-switched immunoglobulins (swIg) or retained IgM. The more numerous IgM(+) cells were longer lived than the swIg(+) cells. However, swIg(+) memory cells dominated the secondary response because of the capacity to become activated in the presence of neutralizing serum immunoglobulin. Thus, we propose that memory relies on swIg(+) cells until they disappear and serum immunoglobulin falls to a low level, in which case memory resides with durable IgM(+) reserves.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3993090/" 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/PMC3993090/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pape, Kathryn A -- Taylor, Justin J -- Maul, Robert W -- Gearhart, Patricia J -- Jenkins, Marc K -- F32 AI091033/AI/NIAID NIH HHS/ -- R01 AI036914/AI/NIAID NIH HHS/ -- R01 AI039614/AI/NIAID NIH HHS/ -- R37 AI027998/AI/NIAID NIH HHS/ -- T32 CA009138/CA/NCI NIH HHS/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2011 Mar 4;331(6021):1203-7. doi: 10.1126/science.1201730. Epub 2011 Feb 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, Center for Immunology, University of Minnesota Medical School, Minneapolis, MN 55455, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21310965" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens/immunology ; Antigens, CD38/analysis ; B-Lymphocyte Subsets/*immunology ; Cell Survival ; Female ; Germinal Center/cytology/immunology ; Immunization ; *Immunoglobulin Class Switching ; Immunoglobulin M/genetics/*immunology ; *Immunologic Memory ; Lymph Nodes/cytology/immunology ; Lymphocyte Activation ; Male ; Mice ; Mice, Inbred C57BL ; Mutation ; Phycocyanin/immunology ; Phycoerythrin/immunology ; Spleen/cytology/immunology
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  • 14
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    Degradation of paternal mitochondria by fertilization-triggered autophagy in C. elegans embryos (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-10-15
    Description: The mitochondrial genome is believed to be maternally inherited in many eukaryotes. Sperm-derived paternal mitochondria enter the oocyte cytoplasm upon fertilization and then normally disappear during early embryogenesis. However, the mechanism responsible for this clearance has been unknown. Here, we show that autophagy, which delivers cytosolic components to lysosomes for degradation, is required for the elimination of paternal mitochondria in Caenorhabditis elegans. Immediately after fertilization, sperm-derived components trigger the localized induction of autophagy around sperm mitochondria. Autophagosomes engulf paternal mitochondria, resulting in their lysosomal degradation during early embryogenesis. In autophagy-defective zygotes, paternal mitochondria and their genome remain even in the first larval stage. Thus, fertilization-triggered autophagy is required for selective degradation of paternal mitochondria and thereby maternal inheritance of mitochondrial DNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sato, Miyuki -- Sato, Ken -- New York, N.Y. -- Science. 2011 Nov 25;334(6059):1141-4. doi: 10.1126/science.1210333. Epub 2011 Oct 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Traffic, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21998252" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Autophagy ; Caenorhabditis elegans/*embryology/genetics/physiology ; Caenorhabditis elegans Proteins/genetics/metabolism ; DNA, Helminth/analysis/genetics ; DNA, Mitochondrial/analysis/genetics ; Embryo, Nonmammalian/*physiology ; Embryonic Development ; *Fertilization ; Genome, Mitochondrial ; Hermaphroditic Organisms ; Lysosomes/metabolism ; Male ; Mitochondria/genetics/*metabolism ; Mutation ; Oocytes/physiology ; Phagosomes/*physiology ; Recombinant Fusion Proteins/metabolism ; Spermatozoa/ultrastructure ; Ubiquitination
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  • 15
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    Medicine. The genetics of primary aldosteronism (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-02-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Funder, John W -- New York, N.Y. -- Science. 2011 Feb 11;331(6018):685-6. doi: 10.1126/science.1202887.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Prince Henry's Institute of Medical Research, Monash Medical Centre, Clayton, Victoria 3168, Australia. john.funder@princehenrys.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21310991" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Cortex Neoplasms/*genetics/physiopathology ; Adrenal Glands/pathology ; Adrenocortical Adenoma/*genetics/physiopathology ; Aldosterone/*metabolism ; Animals ; Disease Models, Animal ; Female ; G Protein-Coupled Inwardly-Rectifying Potassium Channels/*genetics/metabolism ; Humans ; Hyperaldosteronism/*genetics/physiopathology ; Hyperplasia ; Hypertension/physiopathology ; Male ; Mice ; Mutation
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  • 16
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    GRK2-dependent S1PR1 desensitization is required for lymphocytes to overcome their attraction to blood (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-10-01
    Description: Lymphocytes egress from lymphoid organs in response to sphingosine-1-phosphate (S1P); minutes later they migrate from blood into tissue against the S1P gradient. The mechanisms facilitating cell movement against the gradient have not been defined. Here, we show that heterotrimeric guanine nucleotide-binding protein-coupled receptor kinase-2 (GRK2) functions in down-regulation of S1P receptor-1 (S1PR1) on blood-exposed lymphocytes. T and B cell movement from blood into lymph nodes is reduced in the absence of GRK2 but is restored in S1P-deficient mice. In the spleen, B cell movement between the blood-rich marginal zone and follicles is disrupted by GRK2 deficiency and by mutation of an S1PR1 desensitization motif. Moreover, delivery of systemic antigen into follicles is impaired. Thus, GRK2-dependent S1PR1 desensitization allows lymphocytes to escape circulatory fluids and migrate into lymphoid tissues.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3267326/" 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/PMC3267326/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arnon, Tal I -- Xu, Ying -- Lo, Charles -- Pham, Trung -- An, Jinping -- Coughlin, Shaun -- Dorn, Gerald W -- Cyster, Jason G -- AI74847/AI/NIAID NIH HHS/ -- R01 AI074847/AI/NIAID NIH HHS/ -- R01 AI074847-05/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Sep 30;333(6051):1898-903. doi: 10.1126/science.1208248.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California San Francisco, 513 Parnassus Avenue, San Francisco, CA 94143, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21960637" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen-Antibody Complex/immunology ; B-Lymphocytes/immunology/*physiology ; Blood ; Cell Movement ; Chemokines/physiology ; Chemotaxis, Leukocyte ; Down-Regulation ; G-Protein-Coupled Receptor Kinase 2/*metabolism ; Ligands ; Lymph Nodes/cytology ; Lysophospholipids/metabolism ; Mice ; Mice, Inbred C57BL ; Mutation ; Receptors, Lysosphingolipid/genetics/*metabolism ; Signal Transduction ; Sphingosine/analogs & derivatives/metabolism ; Spleen/cytology/immunology ; T-Lymphocytes/immunology/*physiology
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    Coupled, circumferential motions of the cell wall synthesis machinery and MreB filaments in B. subtilis (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-06-04
    Description: Rod-shaped bacteria elongate by the action of cell wall synthesis complexes linked to underlying dynamic MreB filaments. To understand how the movements of these filaments relate to cell wall synthesis, we characterized the dynamics of MreB and the cell wall elongation machinery using high-precision particle tracking in Bacillus subtilis. We found that MreB and the elongation machinery moved circumferentially around the cell, perpendicular to its length, with nearby synthesis complexes and MreB filaments moving independently in both directions. Inhibition of cell wall synthesis by various methods blocked the movement of MreB. Thus, bacteria elongate by the uncoordinated, circumferential movements of synthetic complexes that insert radial hoops of new peptidoglycan during their transit, possibly driving the motion of the underlying MreB filaments.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3235694/" 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/PMC3235694/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Garner, Ethan C -- Bernard, Remi -- Wang, Wenqin -- Zhuang, Xiaowei -- Rudner, David Z -- Mitchison, Tim -- R01 GM039565/GM/NIGMS NIH HHS/ -- R01 GM039565-24/GM/NIGMS NIH HHS/ -- R01 GM073831/GM/NIGMS NIH HHS/ -- R01 GM096450/GM/NIGMS NIH HHS/ -- R01-GM073831/GM/NIGMS NIH HHS/ -- R01-GM096450/GM/NIGMS NIH HHS/ -- R01-GM39565/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Jul 8;333(6039):222-5. doi: 10.1126/science.1203285. Epub 2011 Jun 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA. ethan.garner@hms.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21636745" target="_blank"〉PubMed〈/a〉
    Keywords: Anti-Bacterial Agents/pharmacology ; Bacillus subtilis/drug effects/*growth & development/*metabolism/ultrastructure ; Bacterial Proteins/chemistry/genetics/*metabolism ; Cell Wall/*metabolism ; Models, Biological ; Morphogenesis ; Motion ; Mutation ; Peptidoglycan/chemistry/*metabolism ; Polymerization ; Recombinant Fusion Proteins/chemistry/metabolism
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  • 18
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    Sequence and structural convergence of broad and potent HIV antibodies that mimic CD4 binding (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-07-19
    Description: Passive transfer of broadly neutralizing HIV antibodies can prevent infection, which suggests that vaccines that elicit such antibodies would be protective. Thus far, however, few broadly neutralizing HIV antibodies that occur naturally have been characterized. To determine whether these antibodies are part of a larger group of related molecules, we cloned 576 new HIV antibodies from four unrelated individuals. All four individuals produced expanded clones of potent broadly neutralizing CD4-binding-site antibodies that mimic binding to CD4. Despite extensive hypermutation, the new antibodies shared a consensus sequence of 68 immunoglobulin H (IgH) chain amino acids and arise independently from two related IgH genes. Comparison of the crystal structure of one of the antibodies to the broadly neutralizing antibody VRC01 revealed conservation of the contacts to the HIV spike.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3351836/" 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/PMC3351836/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scheid, Johannes F -- Mouquet, Hugo -- Ueberheide, Beatrix -- Diskin, Ron -- Klein, Florian -- Oliveira, Thiago Y K -- Pietzsch, John -- Fenyo, David -- Abadir, Alexander -- Velinzon, Klara -- Hurley, Arlene -- Myung, Sunnie -- Boulad, Farid -- Poignard, Pascal -- Burton, Dennis R -- Pereyra, Florencia -- Ho, David D -- Walker, Bruce D -- Seaman, Michael S -- Bjorkman, Pamela J -- Chait, Brian T -- Nussenzweig, Michel C -- P01 AI081677/AI/NIAID NIH HHS/ -- P30 AI060354/AI/NIAID NIH HHS/ -- R01 AI033292/AI/NIAID NIH HHS/ -- RR00862/RR/NCRR NIH HHS/ -- RR022220/RR/NCRR NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Sep 16;333(6049):1633-7. doi: 10.1126/science.1207227. Epub 2011 Jul 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Immunology, The Rockefeller University, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21764753" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antibodies, Neutralizing/*chemistry/*immunology/metabolism ; Antibody Affinity ; Antibody Specificity ; Antigens, CD4/immunology/*metabolism ; Binding Sites ; Binding Sites, Antibody ; Cloning, Molecular ; Consensus Sequence ; Crystallography, X-Ray ; Genes, Immunoglobulin Heavy Chain ; HIV Antibodies/*chemistry/*immunology/metabolism ; HIV Envelope Protein gp120/chemistry/*immunology/metabolism ; HIV Infections/immunology ; Humans ; Immunoglobulin Fab Fragments/chemistry ; Immunoglobulin Heavy Chains/chemistry ; Immunoglobulin Light Chains/chemistry ; Molecular Mimicry ; Molecular Sequence Data ; Mutation ; Protein Conformation
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    Industrial melanism in British peppered moths has a singular and recent mutational origin (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-04-16
    Description: The rapid spread of a novel black form (known as carbonaria) of the peppered moth Biston betularia in 19th-century Britain is a textbook example of how an altered environment may produce morphological adaptation through genetic change. However, the underlying genetic basis of the difference between the wild-type (light-colored) and carbonaria forms has remained unknown. We have genetically mapped the carbonaria morph to a 200-kilobase region orthologous to a segment of silkworm chromosome 17 and show that there is only one core sequence variant associated with the carbonaria morph, carrying a signature of recent strong selection. The carbonaria region coincides with major wing-patterning loci in other lepidopteran systems, suggesting the existence of basal color-patterning regulators in this region.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉van't Hof, Arjen E -- Edmonds, Nicola -- Dalikova, Martina -- Marec, Frantisek -- Saccheri, Ilik J -- New York, N.Y. -- Science. 2011 May 20;332(6032):958-60. doi: 10.1126/science.1203043. Epub 2011 Apr 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Integrative Biology, University of Liverpool, Liverpool, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21493823" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological/*genetics ; Alleles ; Animals ; Chromosome Mapping ; Chromosomes, Insect/*genetics ; Genes, Insect ; Genetic Loci ; Genotype ; Great Britain ; Haplotypes ; Linkage Disequilibrium ; Melanins/*analysis/*genetics ; Moths/*genetics/physiology ; Mutation ; Pigmentation/*genetics ; Polymorphism, Single Nucleotide ; *Selection, Genetic
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  • 20
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    MED12, the mediator complex subunit 12 gene, is mutated at high frequency in uterine leiomyomas (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-08-27
    Description: Uterine leiomyomas, or fibroids, are benign tumors that affect millions of women worldwide and that can cause considerable morbidity. To study the genetic basis of this tumor type, we examined 18 uterine leiomyomas derived from 17 different patients by exome sequencing and identified tumor-specific mutations in the mediator complex subunit 12 (MED12) gene in 10. Through analysis of 207 additional tumors, we determined that MED12 is altered in 70% (159 of 225) of tumors from a total of 80 patients. The Mediator complex is a 26-subunit transcriptional regulator that bridges DNA regulatory sequences to the RNA polymerase II initiation complex. All mutations resided in exon 2, suggesting that aberrant function of this region of MED12 contributes to tumorigenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Makinen, Netta -- Mehine, Miika -- Tolvanen, Jaana -- Kaasinen, Eevi -- Li, Yilong -- Lehtonen, Heli J -- Gentile, Massimiliano -- Yan, Jian -- Enge, Martin -- Taipale, Minna -- Aavikko, Mervi -- Katainen, Riku -- Virolainen, Elina -- Bohling, Tom -- Koski, Taru A -- Launonen, Virpi -- Sjoberg, Jari -- Taipale, Jussi -- Vahteristo, Pia -- Aaltonen, Lauri A -- New York, N.Y. -- Science. 2011 Oct 14;334(6053):252-5. doi: 10.1126/science.1208930. Epub 2011 Aug 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Genetics, Genome-Scale Biology Research Program, University of Helsinki, Helsinki, Finland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21868628" target="_blank"〉PubMed〈/a〉
    Keywords: Codon ; Exons ; Female ; Gene Expression Profiling ; Humans ; INDEL Mutation ; Introns ; Leiomyoma/*genetics/metabolism ; Mediator Complex/*genetics ; Mutation ; Mutation, Missense ; Signal Transduction ; Uterine Neoplasms/*genetics/metabolism
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    A potent and broad neutralizing antibody recognizes and penetrates the HIV glycan shield (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-10-15
    Description: The HIV envelope (Env) protein gp120 is protected from antibody recognition by a dense glycan shield. However, several of the recently identified PGT broadly neutralizing antibodies appear to interact directly with the HIV glycan coat. Crystal structures of antigen-binding fragments (Fabs) PGT 127 and 128 with Man(9) at 1.65 and 1.29 angstrom resolution, respectively, and glycan binding data delineate a specific high mannose-binding site. Fab PGT 128 complexed with a fully glycosylated gp120 outer domain at 3.25 angstroms reveals that the antibody penetrates the glycan shield and recognizes two conserved glycans as well as a short beta-strand segment of the gp120 V3 loop, accounting for its high binding affinity and broad specificity. Furthermore, our data suggest that the high neutralization potency of PGT 127 and 128 immunoglobulin Gs may be mediated by cross-linking Env trimers on the viral surface.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3280215/" 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/PMC3280215/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pejchal, Robert -- Doores, Katie J -- Walker, Laura M -- Khayat, Reza -- Huang, Po-Ssu -- Wang, Sheng-Kai -- Stanfield, Robyn L -- Julien, Jean-Philippe -- Ramos, Alejandra -- Crispin, Max -- Depetris, Rafael -- Katpally, Umesh -- Marozsan, Andre -- Cupo, Albert -- Maloveste, Sebastien -- Liu, Yan -- McBride, Ryan -- Ito, Yukishige -- Sanders, Rogier W -- Ogohara, Cassandra -- Paulson, James C -- Feizi, Ten -- Scanlan, Christopher N -- Wong, Chi-Huey -- Moore, John P -- Olson, William C -- Ward, Andrew B -- Poignard, Pascal -- Schief, William R -- Burton, Dennis R -- Wilson, Ian A -- AI082362/AI/NIAID NIH HHS/ -- AI33292/AI/NIAID NIH HHS/ -- AI74372/AI/NIAID NIH HHS/ -- AI84817/AI/NIAID NIH HHS/ -- F32 AI074372-03/AI/NIAID NIH HHS/ -- HFE-224662/Canadian Institutes of Health Research/Canada -- P01 AI082362/AI/NIAID NIH HHS/ -- P01 AI082362-03/AI/NIAID NIH HHS/ -- P01 AI082362-04/AI/NIAID NIH HHS/ -- P41RR001209/RR/NCRR NIH HHS/ -- R01 AI033292/AI/NIAID NIH HHS/ -- R01 AI033292-14/AI/NIAID NIH HHS/ -- R01 AI084817/AI/NIAID NIH HHS/ -- R01 AI084817-04/AI/NIAID NIH HHS/ -- RR017573/RR/NCRR NIH HHS/ -- U01 CA128416/CA/NCI NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Nov 25;334(6059):1097-103. doi: 10.1126/science.1213256. Epub 2011 Oct 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Skaggs Institute for Chemical Biology and International AIDS Vaccine Initiative (IAVI) Neutralizing Antibody Center, nhe Scripps Research Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21998254" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies, Neutralizing/chemistry/genetics/*immunology/metabolism ; Antibody Specificity ; Binding Sites, Antibody ; Carbohydrate Conformation ; Cell Line ; Crystallography, X-Ray ; Disaccharides/chemistry/metabolism ; Epitopes ; Glycosylation ; HIV Antibodies/chemistry/genetics/*immunology/*metabolism ; HIV Envelope Protein gp120/chemistry/*immunology/metabolism ; HIV-1/*immunology/physiology ; Humans ; Hydrogen Bonding ; Immunoglobulin Fab Fragments/chemistry/immunology/metabolism ; Mannose/chemistry/immunology/metabolism ; Mannosides/chemistry/metabolism ; Models, Molecular ; Mutation ; Oligosaccharides/chemistry/*immunology/metabolism ; Polysaccharides/chemistry/*immunology/*metabolism ; Protein Conformation ; Protein Structure, Tertiary
    Print ISSN: 0036-8075
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    Aneuploidy drives genomic instability in yeast (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-08-20
    Description: Aneuploidy decreases cellular fitness, yet it is also associated with cancer, a disease of enhanced proliferative capacity. To investigate one mechanism by which aneuploidy could contribute to tumorigenesis, we examined the effects of aneuploidy on genomic stability. We analyzed 13 budding yeast strains that carry extra copies of single chromosomes and found that all aneuploid strains exhibited one or more forms of genomic instability. Most strains displayed increased chromosome loss and mitotic recombination, as well as defective DNA damage repair. Aneuploid fission yeast strains also exhibited defects in mitotic recombination. Aneuploidy-induced genomic instability could facilitate the development of genetic alterations that drive malignant growth in cancer.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3278960/" 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/PMC3278960/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sheltzer, Jason M -- Blank, Heidi M -- Pfau, Sarah J -- Tange, Yoshie -- George, Benson M -- Humpton, Timothy J -- Brito, Ilana L -- Hiraoka, Yasushi -- Niwa, Osami -- Amon, Angelika -- GM056800/GM/NIGMS NIH HHS/ -- R01 GM056800/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Aug 19;333(6045):1026-30. doi: 10.1126/science.1206412.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉David H. Koch Institute for Integrative Cancer Research and Howard Hughes Medical Institute (HHMI), Massachusetts Institute of Technology, Cambridge, MA 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21852501" target="_blank"〉PubMed〈/a〉
    Keywords: *Aneuploidy ; Chromosome Segregation ; Chromosomes, Fungal/genetics ; *DNA Damage ; *DNA Repair ; DNA Replication ; DNA, Fungal/genetics/metabolism ; *Genome, Fungal ; *Genomic Instability ; Mutagenesis ; Mutation ; Neoplasms/genetics ; Phenotype ; Rad52 DNA Repair and Recombination Protein/genetics ; *Recombination, Genetic ; Saccharomyces cerevisiae/*genetics ; Saccharomyces cerevisiae Proteins/genetics
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    Genetic testing. New high-tech screen takes carrier testing to the next level (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-01-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Couzin-Frankel, Jennifer -- New York, N.Y. -- Science. 2011 Jan 14;331(6014):130-1. doi: 10.1126/science.331.6014.130.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21233351" target="_blank"〉PubMed〈/a〉
    Keywords: Computational Biology ; Genetic Testing/*methods ; Heterozygote Detection/*methods ; Humans ; Mutation ; Rare Diseases/*genetics ; *Sequence Analysis, DNA ; Software
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  • 24
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    Role for piRNAs and noncoding RNA in de novo DNA methylation of the imprinted mouse Rasgrf1 locus (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-05-14
    Description: Genomic imprinting causes parental origin-specific monoallelic gene expression through differential DNA methylation established in the parental germ line. However, the mechanisms underlying how specific sequences are selectively methylated are not fully understood. We have found that the components of the PIWI-interacting RNA (piRNA) pathway are required for de novo methylation of the differentially methylated region (DMR) of the imprinted mouse Rasgrf1 locus, but not other paternally imprinted loci. A retrotransposon sequence within a noncoding RNA spanning the DMR was targeted by piRNAs generated from a different locus. A direct repeat in the DMR, which is required for the methylation and imprinting of Rasgrf1, served as a promoter for this RNA. We propose a model in which piRNAs and a target RNA direct the sequence-specific methylation of Rasgrf1.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3368507/" 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/PMC3368507/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Watanabe, Toshiaki -- Tomizawa, Shin-ichi -- Mitsuya, Kohzoh -- Totoki, Yasushi -- Yamamoto, Yasuhiro -- Kuramochi-Miyagawa, Satomi -- Iida, Naoko -- Hoki, Yuko -- Murphy, Patrick J -- Toyoda, Atsushi -- Gotoh, Kengo -- Hiura, Hitoshi -- Arima, Takahiro -- Fujiyama, Asao -- Sado, Takashi -- Shibata, Tatsuhiro -- Nakano, Toru -- Lin, Haifan -- Ichiyanagi, Kenji -- Soloway, Paul D -- Sasaki, Hiroyuki -- R01 CA098597/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2011 May 13;332(6031):848-52. doi: 10.1126/science.1203919.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Human Genetics and Department of Integrated Genetics, National Institute of Genetics, Research Organization of Information and Systems, Mishima, Shizuoka, 411-8540, Japan. toshwatatoshiakiwatanabe@gmail.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21566194" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Argonaute Proteins ; *DNA Methylation ; *Genomic Imprinting ; Male ; Mice ; Mice, Inbred C57BL ; Mitochondrial Proteins/genetics/metabolism ; Models, Genetic ; Mutation ; Phospholipase D/genetics/metabolism ; Proteins/genetics/metabolism ; RNA, Small Interfering/*genetics/metabolism ; RNA, Untranslated/*genetics/metabolism ; Repetitive Sequences, Nucleic Acid ; Retroelements ; Spermatogonia/metabolism ; Testis/embryology/metabolism ; Transcription, Genetic ; ras-GRF1/*genetics
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    Enhancement of consolidated long-term memory by overexpression of protein kinase Mzeta in the neocortex (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-10
    Description: Memories are more easily disrupted than improved. Many agents can impair memories during encoding and consolidation. In contrast, the armamentarium of potential memory enhancers is so far rather modest. Moreover, the effect of the latter appears to be limited to enhancing new memories during encoding and the initial period of cellular consolidation, which can last from a few minutes to hours after learning. Here, we report that overexpression in the rat neocortex of the protein kinase C isozyme protein kinase Mzeta (PKMzeta) enhances long-term memory, whereas a dominant negative PKMzeta disrupts memory, even long after memory has been formed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shema, Reut -- Haramati, Sharon -- Ron, Shiri -- Hazvi, Shoshi -- Chen, Alon -- Sacktor, Todd Charlton -- Dudai, Yadin -- MH57068/MH/NIMH NIH HHS/ -- R01 MH53576/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2011 Mar 4;331(6021):1207-10. doi: 10.1126/science.1200215.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Weizmann Institute of Science, Rehovot 76100, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21385716" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Conditioning (Psychology) ; Gene Expression ; Gene Transfer Techniques ; Genetic Vectors ; Isoenzymes/genetics/metabolism ; Lentivirus/genetics ; Male ; *Memory, Long-Term ; Mutant Proteins/metabolism ; Mutation ; Neocortex/*metabolism ; Neurons/metabolism ; Protein Kinase C/*genetics/*metabolism ; Rats ; Rats, Wistar
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    Function of rhodopsin in temperature discrimination in Drosophila (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-12
    Description: Many animals, including the fruit fly, are sensitive to small differences in ambient temperature. The ability of Drosophila larvae to choose their ideal temperature (18 degrees C) over other comfortable temperatures (19 degrees to 24 degrees C) depends on a thermosensory signaling pathway that includes a heterotrimeric guanine nucleotide-binding protein (G protein), a phospholipase C, and the transient receptor potential TRPA1 channel. We report that mutation of the gene (ninaE) encoding a classical G protein-coupled receptor (GPCR), Drosophila rhodopsin, eliminates thermotactic discrimination in the comfortable temperature range. This role for rhodopsin in thermotaxis toward 18 degrees C was light-independent. Introduction of mouse melanopsin restored normal thermotactic behavior in ninaE mutant larvae. We propose that rhodopsins represent a class of evolutionarily conserved GPCRs that are required for initiating thermosensory signaling cascades.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shen, Wei L -- Kwon, Young -- Adegbola, Abidemi A -- Luo, Junjie -- Chess, Andrew -- Montell, Craig -- GM085335/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Mar 11;331(6022):1333-6. doi: 10.1126/science.1198904.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry, Center for Sensory Biology, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21393546" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Drosophila Proteins/genetics/metabolism/*physiology ; Drosophila melanogaster/genetics/*physiology ; Eye Proteins/genetics/*physiology ; Larva/genetics/physiology ; Light ; Mice ; Movement ; Mutation ; Photoreceptor Cells, Invertebrate/physiology ; Receptors, G-Protein-Coupled/genetics/physiology ; Rhodopsin/genetics/*physiology ; Rod Opsins/genetics/physiology ; *Signal Transduction ; TRPC Cation Channels/genetics/metabolism ; Temperature ; *Thermosensing
    Print ISSN: 0036-8075
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    Biochemistry. KSR plays CRAF-ty (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-05-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shi, Fumin -- Lemmon, Mark A -- New York, N.Y. -- Science. 2011 May 27;332(6033):1043-4. doi: 10.1126/science.1208063.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics, and Graduate Group in Biochemistry and Molecular Biophysics, University of Pennsylvania School of Medicine, 422 Curie Boulevard, Philadelphia, PA 19104-6059, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21617065" target="_blank"〉PubMed〈/a〉
    Keywords: Allosteric Regulation ; Animals ; Binding Sites ; Catalytic Domain ; Cell Membrane/enzymology ; Enzyme Activation ; Extracellular Signal-Regulated MAP Kinases/*metabolism ; Humans ; *MAP Kinase Signaling System ; Mitogen-Activated Protein Kinase Kinases/*metabolism ; Mutation ; Phosphorylation ; Protein Conformation ; Protein Kinases/chemistry/genetics/*metabolism ; Protein Multimerization ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Proto-Oncogene Proteins B-raf/antagonists & inhibitors/*metabolism ; Proto-Oncogene Proteins c-raf/*metabolism
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  • 28
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    Pyrazinamide inhibits trans-translation in Mycobacterium tuberculosis (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-08-13
    Description: Pyrazinamide (PZA) is a first-line tuberculosis drug that plays a unique role in shortening the duration of tuberculosis chemotherapy. PZA is hydrolyzed intracellularly to pyrazinoic acid (POA) by pyrazinamidase (PZase, encoded by pncA), an enzyme frequently lost in PZA-resistant strains, but the target of POA in Mycobacterium tuberculosis has remained elusive. Here, we identify a previously unknown target of POA as the ribosomal protein S1 (RpsA), a vital protein involved in protein translation and the ribosome-sparing process of trans-translation. Three PZA-resistant clinical isolates without pncA mutation harbored RpsA mutations. RpsA overexpression conferred increased PZA resistance, and we confirmed that POA bound to RpsA (but not a clinically identified DeltaAla mutant) and subsequently inhibited trans-translation rather than canonical translation. Trans-translation is essential for freeing scarce ribosomes in nonreplicating organisms, and its inhibition may explain the ability of PZA to eradicate persisting organisms.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3502614/" 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/PMC3502614/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shi, Wanliang -- Zhang, Xuelian -- Jiang, Xin -- Yuan, Haiming -- Lee, Jong Seok -- Barry, Clifton E 3rd -- Wang, Honghai -- Zhang, Wenhong -- Zhang, Ying -- AI44063/AI/NIAID NIH HHS/ -- ZIA AI000783-16/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2011 Sep 16;333(6049):1630-2. doi: 10.1126/science.1208813. Epub 2011 Aug 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉W. Harry Feinstone Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21835980" target="_blank"〉PubMed〈/a〉
    Keywords: Amidohydrolases/genetics/metabolism ; Amino Acid Sequence ; Antitubercular Agents/metabolism/*pharmacology ; Bacterial Proteins/chemistry/genetics/*metabolism ; Drug Resistance, Bacterial ; Molecular Sequence Data ; Mutant Proteins/metabolism ; Mutation ; Mycobacterium tuberculosis/*drug effects/genetics/metabolism ; Prodrugs/metabolism/pharmacology ; Protein Binding ; Protein Biosynthesis/drug effects ; Protein Structure, Tertiary ; Pyrazinamide/*analogs & derivatives/metabolism/*pharmacology ; RNA, Bacterial/metabolism ; RNA, Messenger/metabolism ; RNA, Transfer/metabolism ; Ribosomal Proteins/chemistry/genetics/*metabolism ; Ribosomes/metabolism
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    Plant science. Photosynthesis, reorganized (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-04-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉West-Eberhard, Mary Jane -- Smith, J Andrew C -- Winter, Klaus -- New York, N.Y. -- Science. 2011 Apr 15;332(6027):311-2. doi: 10.1126/science.1205336.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Smithsonian Tropical Research Institute, c/o Escuela de Biologia, Universidad de Costa Rica, Costa Rica. mjwe@sent.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21493847" target="_blank"〉PubMed〈/a〉
    Keywords: Carbon Dioxide/metabolism ; Chloroplasts/metabolism ; Decarboxylation ; *Evolution, Molecular ; Gene Expression Regulation, Plant ; Genes, Plant ; Malates/metabolism ; Mutation ; Phenotype ; Phosphoenolpyruvate Carboxylase/metabolism ; *Photosynthesis/genetics ; Plant Leaves/metabolism ; Plant Stomata/physiology ; Plants/genetics/*metabolism ; Regulatory Elements, Transcriptional ; Ribulose-Bisphosphate Carboxylase/metabolism ; Stress, Physiological
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  • 30
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    Altered telomeres in tumors with ATRX and DAXX mutations (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-07-02
    Description: The proteins encoded by ATRX and DAXX participate in chromatin remodeling at telomeres and other genomic sites. Because inactivating mutations of these genes are common in human pancreatic neuroendocrine tumors (PanNETs), we examined the telomere status of these tumors. We found that 61% of PanNETs displayed abnormal telomeres that are characteristic of a telomerase-independent telomere maintenance mechanism termed ALT (alternative lengthening of telomeres). All of the PanNETs exhibiting these abnormal telomeres had ATRX or DAXX mutations or loss of nuclear ATRX or DAXX protein. ATRX mutations also correlate with abnormal telomeres in tumors of the central nervous system. These data suggest that an alternative telomere maintenance function may operate in human tumors with alterations in the ATRX or DAXX genes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3174141/" 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/PMC3174141/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heaphy, Christopher M -- de Wilde, Roeland F -- Jiao, Yuchen -- Klein, Alison P -- Edil, Barish H -- Shi, Chanjuan -- Bettegowda, Chetan -- Rodriguez, Fausto J -- Eberhart, Charles G -- Hebbar, Sachidanand -- Offerhaus, G Johan -- McLendon, Roger -- Rasheed, B Ahmed -- He, Yiping -- Yan, Hai -- Bigner, Darell D -- Oba-Shinjo, Sueli Mieko -- Marie, Suely Kazue Nagahashi -- Riggins, Gregory J -- Kinzler, Kenneth W -- Vogelstein, Bert -- Hruban, Ralph H -- Maitra, Anirban -- Papadopoulos, Nickolas -- Meeker, Alan K -- P01 CA134292/CA/NCI NIH HHS/ -- P01 CA134292-01A1/CA/NCI NIH HHS/ -- P50 CA062924/CA/NCI NIH HHS/ -- P50 CA062924-06/CA/NCI NIH HHS/ -- P50 NS020023/NS/NINDS NIH HHS/ -- P50 NS020023-28/NS/NINDS NIH HHS/ -- R01 CA113669/CA/NCI NIH HHS/ -- R01 CA113669-06/CA/NCI NIH HHS/ -- R01 CA121113/CA/NCI NIH HHS/ -- R01 CA121113-01/CA/NCI NIH HHS/ -- R01 CA140316/CA/NCI NIH HHS/ -- R01 CA140316-01A1/CA/NCI NIH HHS/ -- R01 NS055089/NS/NINDS NIH HHS/ -- R01 NS055089-01A2/NS/NINDS NIH HHS/ -- R37 CA011898/CA/NCI NIH HHS/ -- R37 CA011898-41/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2011 Jul 22;333(6041):425. doi: 10.1126/science.1207313. Epub 2011 Jun 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, MD 21231, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21719641" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/*genetics/metabolism ; Carcinoma, Neuroendocrine/*genetics/pathology/physiopathology ; Cell Nucleus/metabolism ; Central Nervous System Neoplasms/*genetics/pathology/physiopathology ; Chromatin Assembly and Disassembly ; DNA Helicases/*genetics/metabolism ; Humans ; In Situ Hybridization, Fluorescence ; Mutant Proteins/genetics/metabolism ; Mutation ; Nuclear Proteins/*genetics/metabolism ; Pancreatic Neoplasms/*genetics/pathology/physiopathology ; Phenotype ; Telomere/*physiology/ultrastructure
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Chronic mucocutaneous candidiasis in humans with inborn errors of interleukin-17 immunity (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-02-26
    Description: Chronic mucocutaneous candidiasis disease (CMCD) is characterized by recurrent or persistent infections of the skin, nails, and oral and genital mucosae caused by Candida albicans and, to a lesser extent, Staphylococcus aureus, in patients with no other infectious or autoimmune manifestations. We report two genetic etiologies of CMCD: autosomal recessive deficiency in the cytokine receptor, interleukin-17 receptor A (IL-17RA), and autosomal dominant deficiency of the cytokine interleukin-17F (IL-17F). IL-17RA deficiency is complete, abolishing cellular responses to IL-17A and IL-17F homo- and heterodimers. By contrast, IL-17F deficiency is partial, with mutant IL-17F-containing homo- and heterodimers displaying impaired, but not abolished, activity. These experiments of nature indicate that human IL-17A and IL-17F are essential for mucocutaneous immunity against C. albicans, but otherwise largely redundant.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3070042/" 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/PMC3070042/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Puel, Anne -- Cypowyj, Sophie -- Bustamante, Jacinta -- Wright, Jill F -- Liu, Luyan -- Lim, Hye Kyung -- Migaud, Melanie -- Israel, Laura -- Chrabieh, Maya -- Audry, Magali -- Gumbleton, Matthew -- Toulon, Antoine -- Bodemer, Christine -- El-Baghdadi, Jamila -- Whitters, Matthew -- Paradis, Theresa -- Brooks, Jonathan -- Collins, Mary -- Wolfman, Neil M -- Al-Muhsen, Saleh -- Galicchio, Miguel -- Abel, Laurent -- Picard, Capucine -- Casanova, Jean-Laurent -- 5UL1RR024143-04/RR/NCRR NIH HHS/ -- UL1 RR024143/RR/NCRR NIH HHS/ -- UL1 RR024143-04/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2011 Apr 1;332(6025):65-8. doi: 10.1126/science.1200439. Epub 2011 Feb 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Sante et de la Recherche Medicale, U980, and University Paris Descartes, Necker Medical School, 75015 Paris, France. anne.puel@inserm.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21350122" target="_blank"〉PubMed〈/a〉
    Keywords: Candida albicans ; Candidiasis, Chronic Mucocutaneous/*genetics/*immunology ; Child ; Child, Preschool ; Female ; Genes, Dominant ; Genes, Recessive ; Humans ; Interleukin-17/*immunology ; Male ; Molecular Sequence Data ; Mutation ; Pedigree ; Receptors, Interleukin-17/genetics ; Signal Transduction/genetics ; Th17 Cells/immunology
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    Genetics. Minor splicing, disrupted (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-04-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pessa, Heli K J -- Frilander, Mikko J -- New York, N.Y. -- Science. 2011 Apr 8;332(6026):184-5. doi: 10.1126/science.1205503.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Biotechnology, Program in Genome Biology, PL 56 (Viikinkaari 9), University of Helsinki, 00014 Helsinki, Finland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21474744" target="_blank"〉PubMed〈/a〉
    Keywords: Dwarfism/genetics ; Fetal Growth Retardation/genetics ; Humans ; Introns ; Inverted Repeat Sequences ; Microcephaly/genetics ; Mutation ; Osteochondrodysplasias/genetics ; RNA Precursors/genetics/metabolism ; *RNA Splicing ; RNA, Messenger/genetics/metabolism ; RNA, Small Nuclear/chemistry/*genetics/metabolism ; Ribonucleoproteins, Small Nuclear/*metabolism ; Spliceosomes/*genetics/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Chaperonins facilitate KNOTTED1 cell-to-cell trafficking and stem cell function (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-08-27
    Description: Cell-to-cell communication in plants includes the selective trafficking of transcription factors and other signals through plasmodesmata. The KNOTTED1 (KN1) homeobox (KNOX) family transcription factors, which use this pathway, are essential for stem cell establishment and/or maintenance. Here we show that KN1 trafficking requires the chaperonin complex, which belongs to a group of cytosolic chaperones that fold specific substrate proteins. Genetic and physical interaction data show a functional relevance for chaperonins in KNOX family-dependent stem cell maintenance. Furthermore, tissue-specific complementation assays indicate a mechanistic basis for chaperonin function during the posttranslocational refolding process. Our study shows that chaperonins are essential for the cell-to-cell trafficking of a subset of mobile transcription factors and demonstrates the importance of chaperonin-dependent protein trafficking for plant stem cell function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xu, Xianfeng Morgan -- Wang, Jing -- Xuan, Zhenyu -- Goldshmidt, Alexander -- Borrill, Philippa G M -- Hariharan, Nisha -- Kim, Jae Yean -- Jackson, David -- New York, N.Y. -- Science. 2011 Aug 26;333(6046):1141-4. doi: 10.1126/science.1205727.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21868675" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/cytology/genetics/growth & development/*metabolism ; Arabidopsis Proteins/chemistry/metabolism ; *Cell Communication ; Chaperonins/*metabolism ; Cytoskeleton/physiology ; Homeodomain Proteins/chemistry/genetics/*metabolism ; Meristem/*cytology/physiology ; Mutation ; Plant Leaves/cytology/growth & development/metabolism ; Plant Proteins/chemistry/genetics/*metabolism ; Plasmodesmata/*metabolism ; Protein Folding ; Protein Transport ; Recombinant Fusion Proteins/chemistry/metabolism ; Zea mays/cytology/genetics/*metabolism
    Print ISSN: 0036-8075
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    The C-terminal domain of RNA polymerase II is modified by site-specific methylation (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-04-02
    Description: The carboxy-terminal domain (CTD) of RNA polymerase II (RNAPII) in mammals undergoes extensive posttranslational modification, which is essential for transcriptional initiation and elongation. Here, we show that the CTD of RNAPII is methylated at a single arginine (R1810) by the coactivator-associated arginine methyltransferase 1 (CARM1). Although methylation at R1810 is present on the hyperphosphorylated form of RNAPII in vivo, Ser2 or Ser5 phosphorylation inhibits CARM1 activity toward this site in vitro, suggesting that methylation occurs before transcription initiation. Mutation of R1810 results in the misexpression of a variety of small nuclear RNAs and small nucleolar RNAs, an effect that is also observed in Carm1(-/-) mouse embryo fibroblasts. These results demonstrate that CTD methylation facilitates the expression of select RNAs, perhaps serving to discriminate the RNAPII-associated machinery recruited to distinct gene types.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3773223/" 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/PMC3773223/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sims, Robert J 3rd -- Rojas, Luis Alejandro -- Beck, David -- Bonasio, Roberto -- Schuller, Roland -- Drury, William J 3rd -- Eick, Dirk -- Reinberg, Danny -- F32 GM071166/GM/NIGMS NIH HHS/ -- GM-37120/GM/NIGMS NIH HHS/ -- GM-71166/GM/NIGMS NIH HHS/ -- R01 GM037120/GM/NIGMS NIH HHS/ -- R37 GM037120/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Apr 1;332(6025):99-103. doi: 10.1126/science.1202663.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute (HHMI), Department of Biochemistry, New York University School of Medicine, 522 First Avenue, Smilow 211, New York, NY 10016, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21454787" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arginine/metabolism ; Cell Line ; HeLa Cells ; Humans ; Methylation ; Mice ; Mutation ; Protein Interaction Domains and Motifs ; Protein Structure, Tertiary ; Protein-Arginine N-Methyltransferases/metabolism ; RNA Polymerase II/genetics/*metabolism ; RNA, Small Nuclear/metabolism ; RNA, Small Nucleolar/metabolism ; Recombinant Proteins
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    Cancer. Another NOTCH for cancer (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-08-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brakenhoff, Ruud H -- New York, N.Y. -- Science. 2011 Aug 26;333(6046):1102-3. doi: 10.1126/science.1210986.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Otolaryngology/Head-Neck Surgery, VU University Medical Center, 1007 MB Amsterdam, Netherlands. rh.brakenhoff@vumc.nl〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21868662" target="_blank"〉PubMed〈/a〉
    Keywords: Carcinoma/*genetics/metabolism ; Carcinoma, Squamous Cell ; Cell Cycle Proteins/genetics/metabolism ; Cell Differentiation ; Exons ; F-Box Proteins/genetics/metabolism ; *Genes, Tumor Suppressor ; Head and Neck Neoplasms/*genetics/metabolism ; Humans ; Mutation ; Neoplasms, Squamous Cell/*genetics/metabolism ; Receptor, Notch1/*genetics/*metabolism ; Sequence Analysis, DNA ; Signal Transduction ; Ubiquitin-Protein Ligases/genetics/metabolism
    Print ISSN: 0036-8075
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    Structural basis of type II topoisomerase inhibition by the anticancer drug etoposide (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-07-23
    Description: Type II topoisomerases (TOP2s) resolve the topological problems of DNA by transiently cleaving both strands of a DNA duplex to form a cleavage complex through which another DNA segment can be transported. Several widely prescribed anticancer drugs increase the population of TOP2 cleavage complex, which leads to TOP2-mediated chromosome DNA breakage and death of cancer cells. We present the crystal structure of a large fragment of human TOP2beta complexed to DNA and to the anticancer drug etoposide to reveal structural details of drug-induced stabilization of a cleavage complex. The interplay between the protein, the DNA, and the drug explains the structure-activity relations of etoposide derivatives and the molecular basis of drug-resistant mutations. The analysis of protein-drug interactions provides information applicable for developing an isoform-specific TOP2-targeting strategy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, Chyuan-Chuan -- Li, Tsai-Kun -- Farh, Lynn -- Lin, Li-Ying -- Lin, Te-Sheng -- Yu, Yu-Jen -- Yen, Tien-Jui -- Chiang, Chia-Wang -- Chan, Nei-Li -- New York, N.Y. -- Science. 2011 Jul 22;333(6041):459-62. doi: 10.1126/science.1204117.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, Taipei City 100, Taiwan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21778401" target="_blank"〉PubMed〈/a〉
    Keywords: Base Pairing ; Catalytic Domain ; Crystallography, X-Ray ; DNA/*chemistry/metabolism ; DNA Topoisomerases, Type II/*chemistry/genetics/metabolism ; DNA-Binding Proteins/*chemistry/genetics/metabolism ; Drug Resistance, Neoplasm ; Etoposide/analogs & derivatives/*chemistry/metabolism/*pharmacology ; Humans ; Models, Molecular ; Mutant Proteins/chemistry/metabolism ; Mutation ; Protein Multimerization ; Protein Structure, Quaternary ; Protein Structure, Tertiary ; Structure-Activity Relationship ; Topoisomerase II Inhibitors/*chemistry/metabolism/*pharmacology
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    Development. A new focus on RNA in the lens (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Duncan, Melinda K -- EY12221/EY/NEI NIH HHS/ -- EY15279/EY/NEI NIH HHS/ -- R01 EY012221/EY/NEI NIH HHS/ -- R01 EY015279/EY/NEI NIH HHS/ -- RR016472-10/RR/NCRR NIH HHS/ -- RR027273-01/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2011 Mar 25;331(6024):1523-4. doi: 10.1126/science.1204205.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, University of Delaware, Newark, DE 19716, USA. duncanm@udel.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21436425" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cataract/congenital/*genetics ; Cell Line ; Crystallins/genetics/metabolism ; Cytoplasmic Granules/metabolism ; Gene Expression ; *Gene Expression Regulation, Developmental ; Humans ; Lens, Crystalline/cytology/embryology/*metabolism ; Mice ; Mutation ; Protein Biosynthesis ; RNA, Messenger/*genetics/*metabolism ; Ribonucleoproteins/genetics/*metabolism
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    Chemical genomic profiling for antimalarial therapies, response signatures, and molecular targets (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-08-06
    Description: Malaria remains a devastating disease largely because of widespread drug resistance. New drugs and a better understanding of the mechanisms of drug action and resistance are essential for fulfilling the promise of eradicating malaria. Using high-throughput chemical screening and genome-wide association analysis, we identified 32 highly active compounds and genetic loci associated with differential chemical phenotypes (DCPs), defined as greater than or equal to fivefold differences in half-maximum inhibitor concentration (IC(50)) between parasite lines. Chromosomal loci associated with 49 DCPs were confirmed by linkage analysis and tests of genetically modified parasites, including three genes that were linked to 96% of the DCPs. Drugs whose responses mapped to wild-type or mutant pfcrt alleles were tested in combination in vitro and in vivo, which yielded promising new leads for antimalarial treatments.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3396183/" 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/PMC3396183/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yuan, Jing -- Cheng, Ken Chih-Chien -- Johnson, Ronald L -- Huang, Ruili -- Pattaradilokrat, Sittiporn -- Liu, Anna -- Guha, Rajarshi -- Fidock, David A -- Inglese, James -- Wellems, Thomas E -- Austin, Christopher P -- Su, Xin-zhuan -- R01 AI050234/AI/NIAID NIH HHS/ -- R01 AI50234/AI/NIAID NIH HHS/ -- ZIB HG200319-08/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2011 Aug 5;333(6043):724-9. doi: 10.1126/science.1205216.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Malaria and Vector Research, 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/21817045" target="_blank"〉PubMed〈/a〉
    Keywords: Antimalarials/chemistry/*pharmacology ; Biological Evolution ; Chromosome Mapping ; Drug Combinations ; *Drug Resistance/genetics ; *Genes, Protozoan ; Genetic Linkage ; Genetic Loci ; *Genome, Protozoan ; Genome-Wide Association Study ; High-Throughput Screening Assays ; Inhibitory Concentration 50 ; Membrane Transport Proteins/genetics ; Molecular Structure ; Multidrug Resistance-Associated Proteins/genetics ; Mutation ; *Parasitic Sensitivity Tests ; Plasmodium falciparum/*drug effects/*genetics/growth & development/metabolism ; Polymorphism, Single Nucleotide ; Protozoan Proteins/genetics ; Structure-Activity Relationship
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    Light-induced structural and functional plasticity in Drosophila larval visual system (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-10
    Description: How to build and maintain a reliable yet flexible circuit is a fundamental question in neurobiology. The nervous system has the capacity for undergoing modifications to adapt to the changing environment while maintaining its stability through compensatory mechanisms, such as synaptic homeostasis. Here, we describe our findings in the Drosophila larval visual system, where the variation of sensory inputs induced substantial structural plasticity in dendritic arbors of the postsynaptic neuron and concomitant changes to its physiological output. Furthermore, our genetic analyses have identified the cyclic adenosine monophosphate (cAMP) pathway and a previously uncharacterized cell surface molecule as critical components in regulating experience-dependent modification of the postsynaptic dendrite morphology in Drosophila.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4114502/" 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/PMC4114502/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yuan, Quan -- Xiang, Yang -- Yan, Zhiqiang -- Han, Chun -- Jan, Lily Yeh -- Jan, Yuh Nung -- 2R37NS040929/NS/NINDS NIH HHS/ -- R37 NS040929/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Sep 9;333(6048):1458-62. doi: 10.1126/science.1207121.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Physiology and Biochemistry, University of California, San Francisco, 1550 4th Street, San Francisco, CA 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21903815" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; Cyclic AMP/metabolism ; Darkness ; Dendrites/*physiology/ultrastructure ; Drosophila Proteins/genetics/*metabolism ; Drosophila melanogaster/genetics/growth & development/*physiology ; Larva/physiology ; *Light ; *Light Signal Transduction ; Membrane Proteins/genetics/*metabolism ; Mutation ; *Neuronal Plasticity ; Neurons/physiology/ultrastructure ; Photoreceptor Cells, Invertebrate/*physiology/ultrastructure ; Signal Transduction ; Synapses/*physiology ; Visual Pathways
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    Focused evolution of HIV-1 neutralizing antibodies revealed by structures and deep sequencing (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-08-13
    Description: Antibody VRC01 is a human immunoglobulin that neutralizes about 90% of HIV-1 isolates. To understand how such broadly neutralizing antibodies develop, we used x-ray crystallography and 454 pyrosequencing to characterize additional VRC01-like antibodies from HIV-1-infected individuals. Crystal structures revealed a convergent mode of binding for diverse antibodies to the same CD4-binding-site epitope. A functional genomics analysis of expressed heavy and light chains revealed common pathways of antibody-heavy chain maturation, confined to the IGHV1-2*02 lineage, involving dozens of somatic changes, and capable of pairing with different light chains. Broadly neutralizing HIV-1 immunity associated with VRC01-like antibodies thus involves the evolution of antibodies to a highly affinity-matured state required to recognize an invariant viral structure, with lineages defined from thousands of sequences providing a genetic roadmap of their development.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3516815/" 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/PMC3516815/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, Xueling -- Zhou, Tongqing -- Zhu, Jiang -- Zhang, Baoshan -- Georgiev, Ivelin -- Wang, Charlene -- Chen, Xuejun -- Longo, Nancy S -- Louder, Mark -- McKee, Krisha -- O'Dell, Sijy -- Perfetto, Stephen -- Schmidt, Stephen D -- Shi, Wei -- Wu, Lan -- Yang, Yongping -- Yang, Zhi-Yong -- Yang, Zhongjia -- Zhang, Zhenhai -- Bonsignori, Mattia -- Crump, John A -- Kapiga, Saidi H -- Sam, Noel E -- Haynes, Barton F -- Simek, Melissa -- Burton, Dennis R -- Koff, Wayne C -- Doria-Rose, Nicole A -- Connors, Mark -- NISC Comparative Sequencing Program -- Mullikin, James C -- Nabel, Gary J -- Roederer, Mario -- Shapiro, Lawrence -- Kwong, Peter D -- Mascola, John R -- 5U19 AI 067854-06/AI/NIAID NIH HHS/ -- R01 AI033292/AI/NIAID NIH HHS/ -- U19 AI067854/AI/NIAID NIH HHS/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2011 Sep 16;333(6049):1593-602. doi: 10.1126/science.1207532. Epub 2011 Aug 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vaccine Research Center, 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/21835983" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Vaccines ; Amino Acid Sequence ; Antibodies, Neutralizing/*chemistry/genetics/*immunology/isolation & purification ; Antibody Affinity ; Antibody Specificity ; Antigens, CD4/metabolism ; Base Sequence ; Binding Sites ; Binding Sites, Antibody ; Complementarity Determining Regions/genetics ; Crystallography, X-Ray ; Epitopes ; *Evolution, Molecular ; Genes, Immunoglobulin Heavy Chain ; HIV Antibodies/*chemistry/genetics/*immunology/isolation & purification ; HIV Envelope Protein gp120/chemistry/*immunology/metabolism ; HIV Infections/immunology ; HIV-1/chemistry/*immunology ; High-Throughput Nucleotide Sequencing ; Humans ; Immunoglobulin Fab Fragments/chemistry/immunology ; Immunoglobulin Heavy Chains/chemistry/immunology ; Immunoglobulin J-Chains/genetics ; Immunoglobulin Light Chains/chemistry/immunology ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Sequence Analysis, DNA
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Genetic and molecular basis of drug resistance and species-specific drug action in schistosome parasites (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-11-23
    Description: Oxamniquine resistance evolved in the human blood fluke (Schistosoma mansoni) in Brazil in the 1970s. We crossed parental parasites differing ~500-fold in drug response, determined drug sensitivity and marker segregation in clonally derived second-generation progeny, and identified a single quantitative trait locus (logarithm of odds = 31) on chromosome 6. A sulfotransferase was identified as the causative gene by using RNA interference knockdown and biochemical complementation assays, and we subsequently demonstrated independent origins of loss-of-function mutations in field-derived and laboratory-selected resistant parasites. These results demonstrate the utility of linkage mapping in a human helminth parasite, while crystallographic analyses of protein-drug interactions illuminate the mode of drug action and provide a framework for rational design of oxamniquine derivatives that kill both S. mansoni and S. haematobium, the two species responsible for 〉99% of schistosomiasis cases worldwide.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4136436/" 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/PMC4136436/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Valentim, Claudia L L -- Cioli, Donato -- Chevalier, Frederic D -- Cao, Xiaohang -- Taylor, Alexander B -- Holloway, Stephen P -- Pica-Mattoccia, Livia -- Guidi, Alessandra -- Basso, Annalisa -- Tsai, Isheng J -- Berriman, Matthew -- Carvalho-Queiroz, Claudia -- Almeida, Marcio -- Aguilar, Hector -- Frantz, Doug E -- Hart, P John -- LoVerde, Philip T -- Anderson, Timothy J C -- 098051/Wellcome Trust/United Kingdom -- 5R21-AI072704/AI/NIAID NIH HHS/ -- 5R21-AI096277/AI/NIAID NIH HHS/ -- C06 RR013556/RR/NCRR NIH HHS/ -- HHSN272201000005I/PHS HHS/ -- R01 AI097576/AI/NIAID NIH HHS/ -- R01-AI097576/AI/NIAID NIH HHS/ -- R21 AI072704/AI/NIAID NIH HHS/ -- R21 AI096277/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2013 Dec 13;342(6164):1385-9. doi: 10.1126/science.1243106. Epub 2013 Nov 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Biochemistry and Pathology, University of Texas Health Science Center, San Antonio, TX 78229, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24263136" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Drug Resistance/*genetics ; Gene Knockdown Techniques ; Genetic Linkage ; Helminth Proteins/*genetics ; Humans ; Molecular Sequence Data ; Mutation ; Oxamniquine/*pharmacology ; Phylogeny ; Protein Conformation ; Quantitative Trait Loci ; RNA Interference ; Schistosoma mansoni/*drug effects/*genetics ; Schistosomicides/*pharmacology ; Sulfotransferases/chemistry/classification/*genetics
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    Unraveling the mechanism of protein disaggregation through a ClpB-DnaK interaction (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-02-09
    Description: HSP-100 protein machines, such as ClpB, play an essential role in reactivating protein aggregates that can otherwise be lethal to cells. Although the players involved are known, including the DnaK/DnaJ/GrpE chaperone system in bacteria, details of the molecular interactions are not well understood. Using methyl-transverse relaxation-optimized nuclear magnetic resonance spectroscopy, we present an atomic-resolution model for the ClpB-DnaK complex, which we verified by mutagenesis and functional assays. ClpB and GrpE compete for binding to the DnaK nucleotide binding domain, with GrpE binding inhibiting disaggregation. DnaK, in turn, plays a dual role in both disaggregation and subsequent refolding of polypeptide chains as they emerge from the aggregate. On the basis of a combined structural-biochemical analysis, we propose a model for the mechanism of protein aggregate reactivation by ClpB.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rosenzweig, Rina -- Moradi, Shoeib -- Zarrine-Afsar, Arash -- Glover, John R -- Kay, Lewis E -- Canadian Institutes of Health Research/Canada -- New York, N.Y. -- Science. 2013 Mar 1;339(6123):1080-3. doi: 10.1126/science.1233066. Epub 2013 Feb 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada. rina.rosenzweig@utoronto.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23393091" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphatases/*chemistry/genetics ; Adenosine Triphosphate/chemistry/metabolism ; Bacterial Proteins/chemistry ; Heat-Shock Proteins/*chemistry/genetics ; Hydrolysis ; *Models, Chemical ; Mutation ; Nuclear Magnetic Resonance, Biomolecular ; Protein Interaction Domains and Motifs ; Protein Interaction Maps ; Protein Multimerization ; *Protein Refolding ; Protein Structure, Tertiary ; Protein Transport ; Thermus thermophilus
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    Deciphering the glycosylome of dystroglycanopathies using haploid screens for lassa virus entry (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-03-23
    Description: Glycosylated alpha-dystroglycan (alpha-DG) serves as cellular entry receptor for multiple pathogens, and defects in its glycosylation cause hereditary Walker-Warburg syndrome (WWS). At least eight proteins are critical to glycosylate alpha-DG, but many genes mutated in WWS remain unknown. To identify modifiers of alpha-DG, we performed a haploid screen for Lassa virus entry, a hemorrhagic fever virus causing thousands of deaths annually that hijacks glycosylated alpha-DG to enter cells. In complementary screens, we profiled cells for absence of alpha-DG carbohydrate chains or biochemically related glycans. This revealed virus host factors and a suite of glycosylation units, including all known Walker-Warburg genes and five additional factors critical for the modification of alpha-DG. Our findings accentuate the complexity of this posttranslational feature and point out genes defective in dystroglycanopathies.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3919138/" 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/PMC3919138/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jae, Lucas T -- Raaben, Matthijs -- Riemersma, Moniek -- van Beusekom, Ellen -- Blomen, Vincent A -- Velds, Arno -- Kerkhoven, Ron M -- Carette, Jan E -- Topaloglu, Haluk -- Meinecke, Peter -- Wessels, Marja W -- Lefeber, Dirk J -- Whelan, Sean P -- van Bokhoven, Hans -- Brummelkamp, Thijn R -- AI057159/AI/NIAID NIH HHS/ -- AI081842/AI/NIAID NIH HHS/ -- R01 AI081842/AI/NIAID NIH HHS/ -- U54 AI057159/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2013 Apr 26;340(6131):479-83. doi: 10.1126/science.1233675. Epub 2013 Mar 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23519211" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cell Line ; Dystroglycans/*metabolism ; Female ; Glycosylation ; Haploidy ; Host-Pathogen Interactions/*genetics ; Humans ; Infant ; Lassa Fever/*genetics/virology ; Lassa virus/*physiology ; Male ; Membrane Proteins/*genetics ; Molecular Sequence Data ; Mutation ; Pedigree ; Proteome/*metabolism ; *Virus Internalization ; Walker-Warburg Syndrome/*genetics
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    ATAXIN-2 activates PERIOD translation to sustain circadian rhythms in Drosophila (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-05-21
    Description: Evidence for transcriptional feedback in circadian timekeeping is abundant, yet little is known about the mechanisms underlying translational control. We found that ATAXIN-2 (ATX2), an RNA-associated protein involved in neurodegenerative disease, is a translational activator of the rate-limiting clock component PERIOD (PER) in Drosophila. ATX2 specifically interacted with TWENTY-FOUR (TYF), an activator of PER translation. RNA interference-mediated depletion of Atx2 or the expression of a mutant ATX2 protein that does not associate with polyadenylate-binding protein (PABP) suppressed behavioral rhythms and decreased abundance of PER. Although ATX2 can repress translation, depletion of Atx2 from Drosophila S2 cells inhibited translational activation by RNA-tethered TYF and disrupted the association between TYF and PABP. Thus, ATX2 coordinates an active translation complex important for PER expression and circadian rhythms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lim, Chunghun -- Allada, Ravi -- R01NS059042/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2013 May 17;340(6134):875-9. doi: 10.1126/science.1234785.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Northwestern University, Evanston, IL 60208, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23687047" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Ataxins ; Cell Line ; *Circadian Rhythm ; Drosophila Proteins/*biosynthesis/genetics/metabolism ; Drosophila melanogaster/metabolism/*physiology ; Mutation ; Nerve Tissue Proteins/genetics/*metabolism ; Period Circadian Proteins/*biosynthesis ; Poly(A)-Binding Proteins/metabolism ; Protein Biosynthesis ; RNA Interference
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    Microbiology. Eliminating malaria (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-07-03
    Description: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4361224/" 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/PMC4361224/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fidock, David A -- R01 AI050234/AI/NIAID NIH HHS/ -- R01 AI079709/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2013 Jun 28;340(6140):1531-3. doi: 10.1126/science.1240539.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology and Division of Infectious Diseases, Columbia University Medical Center, New York, NY 10032, USA. df2260@columbia.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23812705" target="_blank"〉PubMed〈/a〉
    Keywords: Antimalarials/*administration & dosage ; Artemisinins/*administration & dosage ; Child ; DNA Mismatch Repair/*genetics ; Disease Eradication/*methods ; Drug Resistance/*genetics ; Humans ; Malaria, Falciparum/parasitology/*prevention & control ; Mutation ; Plasmodium falciparum/drug effects/*genetics
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    Epistasis among adaptive mutations in deer mouse hemoglobin (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-06-15
    Description: Epistatic interactions between mutant sites in the same protein can exert a strong influence on pathways of molecular evolution. We performed protein engineering experiments that revealed pervasive epistasis among segregating amino acid variants that contribute to adaptive functional variation in deer mouse hemoglobin (Hb). Amino acid mutations increased or decreased Hb-O2 affinity depending on the allelic state of other sites. Structural analysis revealed that epistasis for Hb-O2 affinity and allosteric regulatory control is attributable to indirect interactions between structurally remote sites. The prevalence of sign epistasis for fitness-related biochemical phenotypes has important implications for the evolutionary dynamics of protein polymorphism in natural populations.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4409680/" 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/PMC4409680/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Natarajan, Chandrasekhar -- Inoguchi, Noriko -- Weber, Roy E -- Fago, Angela -- Moriyama, Hideaki -- Storz, Jay F -- HL087216-S1/HL/NHLBI NIH HHS/ -- R01 HL087216/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2013 Jun 14;340(6138):1324-7. doi: 10.1126/science.1236862.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Biological Sciences, University of Nebraska, Lincoln, NE 68588, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23766324" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological/*genetics ; Alleles ; Animals ; *Epistasis, Genetic ; *Evolution, Molecular ; Exons ; Genetic Variation ; Hemoglobins/*chemistry/*genetics ; Hydrogen Bonding ; Mutation ; Oxygen/chemistry ; Peromyscus/genetics/*physiology ; Polymorphism, Genetic ; Protein Structure, Secondary ; alpha-Globins/chemistry/genetics ; beta-Globins/genetics
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    Defining stem cell dynamics in models of intestinal tumor initiation (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-11-23
    Description: Cancer is a disease in which cells accumulate genetic aberrations that are believed to confer a clonal advantage over cells in the surrounding tissue. However, the quantitative benefit of frequently occurring mutations during tumor development remains unknown. We quantified the competitive advantage of Apc loss, Kras activation, and P53 mutations in the mouse intestine. Our findings indicate that the fate conferred by these mutations is not deterministic, and many mutated stem cells are replaced by wild-type stem cells after biased, but still stochastic events. Furthermore, P53 mutations display a condition-dependent advantage, and especially in colitis-affected intestines, clones harboring mutations in this gene are favored. Our work confirms the previously theoretical notion that the tissue architecture of the intestine suppresses the accumulation of mutated lineages.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vermeulen, Louis -- Morrissey, Edward -- van der Heijden, Maartje -- Nicholson, Anna M -- Sottoriva, Andrea -- Buczacki, Simon -- Kemp, Richard -- Tavare, Simon -- Winton, Douglas J -- Cancer Research UK/United Kingdom -- New York, N.Y. -- Science. 2013 Nov 22;342(6161):995-8. doi: 10.1126/science.1243148.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Research UK, Cambridge Institute, University of Cambridge, Robinson Way, Cambridge CB2 0RE, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24264992" target="_blank"〉PubMed〈/a〉
    Keywords: Adenomatous Polyposis Coli Protein/genetics ; Animals ; Cell Transformation, Neoplastic/*genetics/*pathology ; *Gene Expression Regulation, Neoplastic ; Intestinal Neoplasms/*genetics/*pathology ; Mice ; Mice, Mutant Strains ; Models, Biological ; Mutation ; Neoplastic Stem Cells/metabolism/*pathology ; Proto-Oncogene Proteins p21(ras)/genetics ; Transcriptional Activation ; Tumor Suppressor Protein p53/genetics
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    Allele-specific silencing of mutant Myh6 transcripts in mice suppresses hypertrophic cardiomyopathy (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-10-05
    Description: Dominant mutations in sarcomere proteins such as the myosin heavy chains (MHC) are the leading genetic causes of human hypertrophic cardiomyopathy (HCM) and dilated cardiomyopathy. We found that expression of the HCM-causing cardiac MHC gene (Myh6) R403Q mutation in mice can be selectively silenced by an RNA interference (RNAi) cassette delivered by an adeno-associated virus vector. RNAi-transduced MHC(403/+) mice developed neither hypertrophy nor myocardial fibrosis, the pathologic manifestations of HCM, for at least 6 months. Because inhibition of HCM was achieved by only a 25% reduction in the levels of the mutant transcripts, we suggest that the variable clinical phenotype in HCM patients reflects allele-specific expression and that partial silencing of mutant transcripts may have therapeutic benefit.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4100553/" 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/PMC4100553/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jiang, Jianming -- Wakimoto, Hiroko -- Seidman, J G -- Seidman, Christine E -- R01 HL084553/HL/NHLBI NIH HHS/ -- R01HL084553/HL/NHLBI NIH HHS/ -- U01 HL066582/HL/NHLBI NIH HHS/ -- U01 HL098166/HL/NHLBI NIH HHS/ -- U01HL098166/HL/NHLBI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Oct 4;342(6154):111-4. doi: 10.1126/science.1236921.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24092743" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Cardiomyopathy, Hypertrophic/*diagnosis/genetics/pathology ; Dependovirus ; Fibrosis ; Gene Silencing ; *Genetic Therapy ; HEK293 Cells ; Humans ; Mice ; Mutation ; Myosin Heavy Chains/*genetics ; *RNA Interference
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    Adaptive evolution of multiple traits through multiple mutations at a single gene (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-03-16
    Description: The identification of precise mutations is required for a complete understanding of the underlying molecular and evolutionary mechanisms driving adaptive phenotypic change. Using plasticine models in the field, we show that the light coat color of deer mice that recently colonized the light-colored soil of the Nebraska Sand Hills provides a strong selective advantage against visually hunting predators. Color variation in an admixed population suggests that this light Sand Hills phenotype is composed of multiple traits. We identified distinct regions within the Agouti locus associated with each color trait and found that only haplotypes associated with light trait values have evidence of selection. Thus, local adaptation is the result of independent selection on many mutations within a single locus, each with a specific effect on an adaptive phenotype, thereby minimizing pleiotropic consequences.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3836219/" 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/PMC3836219/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Linnen, Catherine R -- Poh, Yu-Ping -- Peterson, Brant K -- Barrett, Rowan D H -- Larson, Joanna G -- Jensen, Jeffrey D -- Hoekstra, Hopi E -- 308796/European Research Council/International -- New York, N.Y. -- Science. 2013 Mar 15;339(6125):1312-6. doi: 10.1126/science.1233213.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Kentucky, Lexington, KY 40506, USA. catherine.linnen@uky.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23493712" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological/*genetics ; Agouti Signaling Protein/genetics ; Animals ; *Biological Evolution ; Color ; Food Chain ; *Multifactorial Inheritance ; Mutation ; Organic Chemicals ; Peromyscus/genetics/*physiology ; Pigmentation/*genetics ; Selection, Genetic
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    Identification of wheat gene Sr35 that confers resistance to Ug99 stem rust race group (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-07-03
    Description: Wheat stem rust, caused by Puccinia graminis f. sp. tritici (Pgt), is a devastating disease that can cause severe yield losses. A previously uncharacterized Pgt race, designated Ug99, has overcome most of the widely used resistance genes and is threatening major wheat production areas. Here, we demonstrate that the Sr35 gene from Triticum monococcum is a coiled-coil, nucleotide-binding, leucine-rich repeat gene that confers near immunity to Ug99 and related races. This gene is absent in the A-genome diploid donor and in polyploid wheat but is effective when transferred from T. monococcum to polyploid wheat. The cloning of Sr35 opens the door to the use of biotechnological approaches to control this devastating disease and to analyses of the molecular interactions that define the wheat-rust pathosystem.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4748951/" 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/PMC4748951/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saintenac, Cyrille -- Zhang, Wenjun -- Salcedo, Andres -- Rouse, Matthew N -- Trick, Harold N -- Akhunov, Eduard -- Dubcovsky, Jorge -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Aug 16;341(6147):783-6. doi: 10.1126/science.1239022. Epub 2013 Jun 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Pathology, Kansas State University, Manhattan, KS 66506, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23811222" target="_blank"〉PubMed〈/a〉
    Keywords: Alternative Splicing ; Amino Acid Sequence ; *Basidiomycota/pathogenicity ; Cloning, Molecular ; Disease Resistance/genetics ; *Genes, Plant ; Haplotypes ; Molecular Sequence Annotation ; Molecular Sequence Data ; Mutation ; Phylogeny ; Plant Diseases/genetics/*immunology/microbiology ; Plant Proteins/chemistry/genetics ; Plant Stems/microbiology ; Plants, Genetically Modified ; Polymorphism, Single Nucleotide ; Polyploidy ; Sequence Analysis, DNA ; Triticum/*genetics/immunology/microbiology
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    Influence of HLA-C expression level on HIV control (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-04-06
    Description: A variant upstream of human leukocyte antigen C (HLA-C) shows the most significant genome-wide effect on HIV control in European Americans and is also associated with the level of HLA-C expression. We characterized the differential cell surface expression levels of all common HLA-C allotypes and tested directly for effects of HLA-C expression on outcomes of HIV infection in 5243 individuals. Increasing HLA-C expression was associated with protection against multiple outcomes independently of individual HLA allelic effects in both African and European Americans, regardless of their distinct HLA-C frequencies and linkage relationships with HLA-B and HLA-A. Higher HLA-C expression was correlated with increased likelihood of cytotoxic T lymphocyte responses and frequency of viral escape mutation. In contrast, high HLA-C expression had a deleterious effect in Crohn's disease, suggesting a broader influence of HLA expression levels in human disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3784322/" 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/PMC3784322/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Apps, Richard -- Qi, Ying -- Carlson, Jonathan M -- Chen, Haoyan -- Gao, Xiaojiang -- Thomas, Rasmi -- Yuki, Yuko -- Del Prete, Greg Q -- Goulder, Philip -- Brumme, Zabrina L -- Brumme, Chanson J -- John, Mina -- Mallal, Simon -- Nelson, George -- Bosch, Ronald -- Heckerman, David -- Stein, Judy L -- Soderberg, Kelly A -- Moody, M Anthony -- Denny, Thomas N -- Zeng, Xue -- Fang, Jingyuan -- Moffett, Ashley -- Lifson, Jeffrey D -- Goedert, James J -- Buchbinder, Susan -- Kirk, Gregory D -- Fellay, Jacques -- McLaren, Paul -- Deeks, Steven G -- Pereyra, Florencia -- Walker, Bruce -- Michael, Nelson L -- Weintrob, Amy -- Wolinsky, Steven -- Liao, Wilson -- Carrington, Mary -- 5-M01-RR-00722/RR/NCRR NIH HHS/ -- HHSN261200800001E/CA/NCI NIH HHS/ -- HHSN261200800001E/PHS HHS/ -- K08 AR057763/AR/NIAMS NIH HHS/ -- K08AR057763/AR/NIAMS NIH HHS/ -- K24 AI069994/AI/NIAID NIH HHS/ -- K24AI069994/AI/NIAID NIH HHS/ -- N02-CP-55504/CP/NCI NIH HHS/ -- P30 AI027763/AI/NIAID NIH HHS/ -- P30 AI027767/AI/NIAID NIH HHS/ -- P30 AI027767-24/AI/NIAID NIH HHS/ -- P30 MH62246/MH/NIMH NIH HHS/ -- PG/09/077/27964/British Heart Foundation/United Kingdom -- R01 AI046995/AI/NIAID NIH HHS/ -- R01 AI060460/AI/NIAID NIH HHS/ -- R01 AI087145/AI/NIAID NIH HHS/ -- R01 AR065174/AR/NIAMS NIH HHS/ -- R01-AI046995/AI/NIAID NIH HHS/ -- R01-AI060460/AI/NIAID NIH HHS/ -- R01-DA-04334/DA/NIDA NIH HHS/ -- R01-DA-12568/DA/NIDA NIH HHS/ -- R01-DA04334/DA/NIDA NIH HHS/ -- R01-DA12568/DA/NIDA NIH HHS/ -- R24 AI067039/AI/NIAID NIH HHS/ -- U01-AI-067854/AI/NIAID NIH HHS/ -- U01-AI-35039/AI/NIAID NIH HHS/ -- U01-AI-35040/AI/NIAID NIH HHS/ -- U01-AI-35041/AI/NIAID NIH HHS/ -- U01-AI-35042/AI/NIAID NIH HHS/ -- U01-AI-35043/AI/NIAID NIH HHS/ -- U01-AI-37613/AI/NIAID NIH HHS/ -- U01-AI-37984/AI/NIAID NIH HHS/ -- UL1 RR024131/RR/NCRR NIH HHS/ -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2013 Apr 5;340(6128):87-91. doi: 10.1126/science.1232685.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer and Inflammation Program, Laboratory of Experimental Immunology, Science Applications International Corporation-Frederick, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23559252" target="_blank"〉PubMed〈/a〉
    Keywords: African Americans/genetics ; Alleles ; Amino Acid Sequence ; Anti-Retroviral Agents/therapeutic use ; Crohn Disease/genetics/immunology ; *Gene Expression Regulation ; HIV/genetics/*immunology ; HIV Infections/drug therapy/*genetics/*immunology ; HLA-C Antigens/*genetics ; Humans ; Immunodominant Epitopes/genetics ; Molecular Sequence Data ; Mutation ; Peptide Fragments/immunology ; Polymorphism, Single Nucleotide ; T-Lymphocytes, Cytotoxic/*immunology ; Viral Load/genetics
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    Cancer. Potential of the synthetic lethality principle (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-11-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nijman, Sebastian M B -- Friend, Stephen H -- New York, N.Y. -- Science. 2013 Nov 15;342(6160):809-11. doi: 10.1126/science.1244669.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24233712" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Drosophila melanogaster/genetics ; Gene Targeting ; *Genes, Lethal ; *Genes, Modifier ; Genetic Therapy/*methods ; Humans ; Immunotherapy ; Molecular Targeted Therapy ; Mutation ; Neoplasms/*genetics/*therapy ; Saccharomyces cerevisiae/genetics ; Tumor Suppressor Proteins/genetics
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    Fungal small RNAs suppress plant immunity by hijacking host RNA interference pathways (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-10-05
    Description: Botrytis cinerea, the causative agent of gray mold disease, is an aggressive fungal pathogen that infects more than 200 plant species. Here, we show that some B. cinerea small RNAs (Bc-sRNAs) can silence Arabidopsis and tomato genes involved in immunity. These Bc-sRNAs hijack the host RNA interference (RNAi) machinery by binding to Arabidopsis Argonaute 1 (AGO1) and selectively silencing host immunity genes. The Arabidopsis ago1 mutant exhibits reduced susceptibility to B. cinerea, and the B. cinerea dcl1 dcl2 double mutant that can no longer produce these Bc-sRNAs displays reduced pathogenicity on Arabidopsis and tomato. Thus, this fungal pathogen transfers "virulent" sRNA effectors into host plant cells to suppress host immunity and achieve infection, which demonstrates a naturally occurring cross-kingdom RNAi as an advanced virulence mechanism.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4096153/" 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/PMC4096153/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weiberg, Arne -- Wang, Ming -- Lin, Feng-Mao -- Zhao, Hongwei -- Zhang, Zhihong -- Kaloshian, Isgouhi -- Huang, Hsien-Da -- Jin, Hailing -- R01 GM093008/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 Oct 4;342(6154):118-23. doi: 10.1126/science.1239705.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Pathology and Microbiology, University of California, Riverside, CA 92521, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24092744" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/genetics/*immunology/microbiology ; Arabidopsis Proteins/genetics ; Argonaute Proteins/genetics ; Botrytis/genetics/*pathogenicity ; Gene Expression Regulation, Plant ; Host-Pathogen Interactions/genetics/*immunology ; Lycopersicon esculentum/genetics/immunology/microbiology ; Mutation ; Plant Diseases/genetics/immunology/*microbiology ; *RNA Interference ; RNA, Fungal/*genetics ; RNA, Small Interfering/*genetics ; Virulence/genetics
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    Crystal structure of Na+, K(+)-ATPase in the Na(+)-bound state (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-09-21
    Description: The Na(+), K(+)-adenosine triphosphatase (ATPase) maintains the electrochemical gradients of Na(+) and K(+) across the plasma membrane--a prerequisite for electrical excitability and secondary transport. Hitherto, structural information has been limited to K(+)-bound or ouabain-blocked forms. We present the crystal structure of a Na(+)-bound Na(+), K(+)-ATPase as determined at 4.3 A resolution. Compared with the K(+)-bound form, large conformational changes are observed in the alpha subunit whereas the beta and gamma subunit structures are maintained. The locations of the three Na(+) sites are indicated with the unique site III at the recently suggested IIIb, as further supported by electrophysiological studies on leak currents. Extracellular release of the third Na(+) from IIIb through IIIa, followed by exchange of Na(+) for K(+) at sites I and II, is suggested.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nyblom, Maria -- Poulsen, Hanne -- Gourdon, Pontus -- Reinhard, Linda -- Andersson, Magnus -- Lindahl, Erik -- Fedosova, Natalya -- Nissen, Poul -- New York, N.Y. -- Science. 2013 Oct 4;342(6154):123-7. doi: 10.1126/science.1243352. Epub 2013 Sep 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Membrane Pumps in Cells and Disease-PUMPkin, Danish National Research Foundation, DK-8000 Aarhus, Denmark.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24051246" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Membrane/enzymology ; Crystallography, X-Ray ; *Models, Molecular ; Mutation ; Protein Binding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Sodium/*chemistry ; Sodium-Potassium-Exchanging ATPase/*chemistry/genetics ; Swine
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    Uncovering the protein translocon at the chloroplast inner envelope membrane (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-02-02
    Description: Chloroplasts require protein translocons at the outer and inner envelope membranes, termed TOC and TIC, respectively, to import thousands of cytoplasmically synthesized preproteins. However, the molecular identity of the TIC translocon remains controversial. Tic20 forms a 1-megadalton complex at the inner membrane and directly interacts with translocating preproteins. We purified the 1-megadalton complex from Arabidopsis, comprising Tic20 and three other essential components, one of which is encoded by the enigmatic open reading frame ycf1 in the chloroplast genome. All four components, together with well-known TOC components, were found stoichiometrically associated with different translocating preproteins. When reconstituted into planar lipid bilayers, the purified complex formed a preprotein-sensitive channel. Thus, this complex constitutes a general TIC translocon.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kikuchi, Shingo -- Bedard, Jocelyn -- Hirano, Minako -- Hirabayashi, Yoshino -- Oishi, Maya -- Imai, Midori -- Takase, Mai -- Ide, Toru -- Nakai, Masato -- New York, N.Y. -- Science. 2013 Feb 1;339(6119):571-4. doi: 10.1126/science.1229262.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Regulation of Biological Reactions, Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23372012" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/*metabolism ; Arabidopsis Proteins/genetics/isolation & purification/*metabolism ; Cell Membrane/*metabolism ; Chloroplasts/*metabolism ; Evolution, Molecular ; Gene Knockout Techniques ; Lipid Bilayers/metabolism ; Membrane Transport Proteins/genetics/isolation & purification/*metabolism ; Mutation ; Open Reading Frames ; Protein Transport
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    Phosphoinositide 3-kinase delta gene mutation predisposes to respiratory infection and airway damage (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-10-19
    Description: Genetic mutations cause primary immunodeficiencies (PIDs) that predispose to infections. Here, we describe activated PI3K-delta syndrome (APDS), a PID associated with a dominant gain-of-function mutation in which lysine replaced glutamic acid at residue 1021 (E1021K) in the p110delta protein, the catalytic subunit of phosphoinositide 3-kinase delta (PI3Kdelta), encoded by the PIK3CD gene. We found E1021K in 17 patients from seven unrelated families, but not among 3346 healthy subjects. APDS was characterized by recurrent respiratory infections, progressive airway damage, lymphopenia, increased circulating transitional B cells, increased immunoglobulin M, and reduced immunoglobulin G2 levels in serum and impaired vaccine responses. The E1021K mutation enhanced membrane association and kinase activity of p110delta. Patient-derived lymphocytes had increased levels of phosphatidylinositol 3,4,5-trisphosphate and phosphorylated AKT protein and were prone to activation-induced cell death. Selective p110delta inhibitors IC87114 and GS-1101 reduced the activity of the mutant enzyme in vitro, which suggested a therapeutic approach for patients with APDS.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3930011/" 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/PMC3930011/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Angulo, Ivan -- Vadas, Oscar -- Garcon, Fabien -- Banham-Hall, Edward -- Plagnol, Vincent -- Leahy, Timothy R -- Baxendale, Helen -- Coulter, Tanya -- Curtis, James -- Wu, Changxin -- Blake-Palmer, Katherine -- Perisic, Olga -- Smyth, Deborah -- Maes, Mailis -- Fiddler, Christine -- Juss, Jatinder -- Cilliers, Deirdre -- Markelj, Gasper -- Chandra, Anita -- Farmer, George -- Kielkowska, Anna -- Clark, Jonathan -- Kracker, Sven -- Debre, Marianne -- Picard, Capucine -- Pellier, Isabelle -- Jabado, Nada -- Morris, James A -- Barcenas-Morales, Gabriela -- Fischer, Alain -- Stephens, Len -- Hawkins, Phillip -- Barrett, Jeffrey C -- Abinun, Mario -- Clatworthy, Menna -- Durandy, Anne -- Doffinger, Rainer -- Chilvers, Edwin R -- Cant, Andrew J -- Kumararatne, Dinakantha -- Okkenhaug, Klaus -- Williams, Roger L -- Condliffe, Alison -- Nejentsev, Sergey -- 095198/Wellcome Trust/United Kingdom -- 095198/Z/10/Z/Wellcome Trust/United Kingdom -- 095691/Wellcome Trust/United Kingdom -- BB/J004456/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- MC_U105184308/Medical Research Council/United Kingdom -- U105184308/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2013 Nov 15;342(6160):866-71. doi: 10.1126/science.1243292. Epub 2013 Oct 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of Cambridge, Cambridge, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24136356" target="_blank"〉PubMed〈/a〉
    Keywords: Class I Phosphatidylinositol 3-Kinases ; *Genetic Predisposition to Disease ; Humans ; Immunologic Deficiency Syndromes/*genetics/immunology/*pathology ; Lymphocytes/immunology ; Mutation ; Pedigree ; Phosphatidylinositol 3-Kinases/*genetics ; Phosphatidylinositol Phosphates/metabolism ; Proto-Oncogene Proteins c-akt/metabolism ; Respiratory Tract Infections/*genetics/immunology/*pathology
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    Noncanonical inflammasome activation by intracellular LPS independent of TLR4 (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-07-28
    Description: Gram-negative bacteria including Escherichia coli, Citrobacter rodentium, Salmonella typhimurium, and Shigella flexneri are sensed in an ill-defined manner by an intracellular inflammasome complex that activates caspase-11. We show that macrophages loaded with synthetic lipid A, E. coli lipopolysaccharide (LPS), or S. typhimurium LPS activate caspase-11 independently of the LPS receptor Toll-like receptor 4 (TLR4). Consistent with lipid A triggering the noncanonical inflammasome, LPS containing a divergent lipid A structure antagonized caspase-11 activation in response to E. coli LPS or Gram-negative bacteria. Moreover, LPS-mutant E. coli failed to activate caspase-11. Tlr4(-/-) mice primed with TLR3 agonist polyinosinic:polycytidylic acid [poly(I:C)] to induce pro-caspase-11 expression were as susceptible as wild-type mice were to sepsis induced by E. coli LPS. These data unveil a TLR4-independent mechanism for innate immune recognition of LPS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kayagaki, Nobuhiko -- Wong, Michael T -- Stowe, Irma B -- Ramani, Sree Ranjani -- Gonzalez, Lino C -- Akashi-Takamura, Sachiko -- Miyake, Kensuke -- Zhang, Juan -- Lee, Wyne P -- Muszynski, Artur -- Forsberg, Lennart S -- Carlson, Russell W -- Dixit, Vishva M -- New York, N.Y. -- Science. 2013 Sep 13;341(6151):1246-9. doi: 10.1126/science.1240248. Epub 2013 Jul 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiological Chemistry, Genentech, South San Francisco, CA 94080, USA. kayagaki@gene.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23887873" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Caspases/biosynthesis ; Cholera Toxin/immunology ; Disease Models, Animal ; Escherichia coli/immunology ; Escherichia coli Infections/genetics/immunology ; *Immunity, Innate ; Inflammasomes/*immunology ; Lipid A/genetics/*immunology ; Macrophages/*immunology ; Mice ; Mice, Mutant Strains ; Mutation ; Salmonella Infections/immunology ; Salmonella typhimurium/immunology ; Sepsis/immunology ; Toll-Like Receptor 4/*immunology
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    Genetics. Mysterious ribosomopathies (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-08-24
    Description: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3893057/" 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/PMC3893057/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McCann, Kathleen L -- Baserga, Susan J -- GM 52581/GM/NIGMS NIH HHS/ -- R01 GM052581/GM/NIGMS NIH HHS/ -- R29 GM052581/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 Aug 23;341(6148):849-50. doi: 10.1126/science.1244156.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Yale University School of Medicine, New Haven, CT 06520, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23970686" target="_blank"〉PubMed〈/a〉
    Keywords: Anemia, Diamond-Blackfan/genetics ; Anemia, Macrocytic/genetics ; Animals ; Chromosome Deletion ; Chromosomes, Human, Pair 5/genetics ; Genetic Diseases, Inborn/*genetics ; Humans ; Mice ; Mutation ; Organ Specificity/genetics ; Ribosomal Proteins/*genetics ; Ribosomes/*genetics
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    The gene Sr33, an ortholog of barley Mla genes, encodes resistance to wheat stem rust race Ug99 (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-07-03
    Description: Wheat stem rust, caused by the fungus Puccinia graminis f. sp. tritici, afflicts bread wheat (Triticum aestivum). New virulent races collectively referred to as "Ug99" have emerged, which threaten global wheat production. The wheat gene Sr33, introgressed from the wild relative Aegilops tauschii into bread wheat, confers resistance to diverse stem rust races, including the Ug99 race group. We cloned Sr33, which encodes a coiled-coil, nucleotide-binding, leucine-rich repeat protein. Sr33 is orthologous to the barley (Hordeum vulgare) Mla mildew resistance genes that confer resistance to Blumeria graminis f. sp. hordei. The wheat Sr33 gene functions independently of RAR1, SGT1, and HSP90 chaperones. Haplotype analysis from diverse collections of Ae. tauschii placed the origin of Sr33 resistance near the southern coast of the Caspian Sea.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Periyannan, Sambasivam -- Moore, John -- Ayliffe, Michael -- Bansal, Urmil -- Wang, Xiaojing -- Huang, Li -- Deal, Karin -- Luo, Mingcheng -- Kong, Xiuying -- Bariana, Harbans -- Mago, Rohit -- McIntosh, Robert -- Dodds, Peter -- Dvorak, Jan -- Lagudah, Evans -- New York, N.Y. -- Science. 2013 Aug 16;341(6147):786-8. doi: 10.1126/science.1239028. Epub 2013 Jun 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Commonwealth Scientific and Industrial Research Organization (CSIRO) Plant Industry, Canberra, ACT 2601, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23811228" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; *Basidiomycota/pathogenicity ; Cloning, Molecular ; Disease Resistance/genetics ; *Genes, Plant ; Haplotypes ; Hordeum/genetics ; Hybridization, Genetic ; Molecular Chaperones/genetics/metabolism ; Molecular Sequence Data ; Mutation ; Plant Diseases/genetics/*immunology/microbiology ; Plant Proteins/chemistry/genetics/metabolism ; Plant Stems/microbiology ; Plants, Genetically Modified ; Poaceae/*genetics ; Synteny ; Triticum/*genetics/*microbiology
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    Structural basis for kinesin-1:cargo recognition (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-03-23
    Description: Kinesin-mediated cargo transport is required for many cellular functions and plays a key role in pathological processes. Structural information on how kinesins recognize their cargoes is required for a molecular understanding of this fundamental and ubiquitous process. Here, we present the crystal structure of the tetratricopeptide repeat domain of kinesin light chain 2 in complex with a cargo peptide harboring a "tryptophan-acidic" motif derived from SKIP (SifA-kinesin interacting protein), a critical host determinant in Salmonella pathogenesis and a regulator of lysosomal positioning. Structural data together with biophysical, biochemical, and cellular assays allow us to propose a framework for intracellular transport based on the binding by kinesin-1 of W-acidic cargo motifs through a combination of electrostatic interactions and sequence-specific elements, providing direct molecular evidence of the mechanisms for kinesin-1:cargo recognition.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3693442/" 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/PMC3693442/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pernigo, Stefano -- Lamprecht, Anneri -- Steiner, Roberto A -- Dodding, Mark P -- 097316/Wellcome Trust/United Kingdom -- British Heart Foundation/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2013 Apr 19;340(6130):356-9. doi: 10.1126/science.1234264. Epub 2013 Mar 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Randall Division of Cell and Molecular Biophysics, King's College London, London SE1 1UL, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23519214" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acid Sequence ; Animals ; Bacterial Proteins/*chemistry/metabolism ; Crystallography, X-Ray ; Glycoproteins/*chemistry/metabolism ; HeLa Cells ; Humans ; Mice ; Microtubule-Associated Proteins/*chemistry/genetics/metabolism ; Molecular Sequence Data ; Mutation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Tryptophan/chemistry/genetics/metabolism
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    Preferential recognition of avian-like receptors in human influenza A H7N9 viruses (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-12-07
    Description: The 2013 outbreak of avian-origin H7N9 influenza in eastern China has raised concerns about its ability to transmit in the human population. The hemagglutinin glycoprotein of most human H7N9 viruses carries Leu(226), a residue linked to adaptation of H2N2 and H3N2 pandemic viruses to human receptors. However, glycan array analysis of the H7 hemagglutinin reveals negligible binding to humanlike alpha2-6-linked receptors and strong preference for a subset of avian-like alpha2-3-linked glycans recognized by all avian H7 viruses. Crystal structures of H7N9 hemagglutinin and six hemagglutinin-glycan complexes have elucidated the structural basis for preferential recognition of avian-like receptors. These findings suggest that the current human H7N9 viruses are poorly adapted for efficient human-to-human transmission.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3954636/" 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/PMC3954636/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xu, Rui -- de Vries, Robert P -- Zhu, Xueyong -- Nycholat, Corwin M -- McBride, Ryan -- Yu, Wenli -- Paulson, James C -- Wilson, Ian A -- GM62116/GM/NIGMS NIH HHS/ -- P41GM103393/GM/NIGMS NIH HHS/ -- P41RR001209/RR/NCRR NIH HHS/ -- R56 AI099275/AI/NIAID NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 Dec 6;342(6163):1230-5. doi: 10.1126/science.1243761.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24311689" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding Sites ; Birds ; Carbohydrate Conformation ; Crystallography, X-Ray ; Hemagglutinin Glycoproteins, Influenza Virus/*chemistry/*metabolism ; Humans ; Influenza A Virus, H7N9 Subtype/*metabolism/*pathogenicity ; Influenza in Birds/transmission/virology ; Influenza, Human/transmission/virology ; Ligands ; Microarray Analysis ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Polysaccharides/chemistry/*metabolism ; Receptors, Virus/chemistry/*metabolism ; Recombinant Proteins/chemistry/metabolism
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    To favor survival under food shortage, the brain disables costly memory (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-01-26
    Description: The brain regulates energy homeostasis in the organism. Under resource shortage, the brain takes priority over peripheral organs for energy supply. But can the brain also down-regulate its own consumption to favor survival? We show that the brain of Drosophila specifically disables the costly formation of aversive long-term memory (LTM) upon starvation, a physiological state required for appetitive LTM formation. At the neural circuit level, the slow oscillations normally triggered in two pairs of dopaminergic neurons to enable aversive LTM formation were abolished in starved flies. Transient artificial activation of these neurons during training restored LTM formation in starved flies but at the price of a reduced survival. LTM formation is thus subject to adaptive plasticity that helps survival under food shortage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Placais, Pierre-Yves -- Preat, Thomas -- New York, N.Y. -- Science. 2013 Jan 25;339(6118):440-2. doi: 10.1126/science.1226018.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genes and Dynamics of Memory Systems, Neurobiology Unit, UMR 7637 Ecole Superieure de Physique et de Chimie Industrielles/CNRS, 10 rue Vauquelin, 75005 Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23349289" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/metabolism ; Calcium/metabolism ; Conditioning (Psychology) ; Cycloheximide/pharmacology ; Dopaminergic Neurons/*physiology ; Drosophila/genetics/*physiology ; Drosophila Proteins/biosynthesis ; Energy Metabolism ; Homeostasis ; *Memory, Long-Term/drug effects ; Models, Animal ; Mutation ; Protein Synthesis Inhibitors/pharmacology ; *Starvation
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    Structure of the repulsive guidance molecule (RGM)-neogenin signaling hub (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-06-08
    Description: Repulsive guidance molecule family members (RGMs) control fundamental and diverse cellular processes, including motility and adhesion, immune cell regulation, and systemic iron metabolism. However, it is not known how RGMs initiate signaling through their common cell-surface receptor, neogenin (NEO1). Here, we present crystal structures of the NEO1 RGM-binding region and its complex with human RGMB (also called dragon). The RGMB structure reveals a previously unknown protein fold and a functionally important autocatalytic cleavage mechanism and provides a framework to explain numerous disease-linked mutations in RGMs. In the complex, two RGMB ectodomains conformationally stabilize the juxtamembrane regions of two NEO1 receptors in a pH-dependent manner. We demonstrate that all RGM-NEO1 complexes share this architecture, which therefore represents the core of multiple signaling pathways.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4730555/" 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/PMC4730555/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bell, Christian H -- Healey, Eleanor -- van Erp, Susan -- Bishop, Benjamin -- Tang, Chenxiang -- Gilbert, Robert J C -- Aricescu, A Radu -- Pasterkamp, R Jeroen -- Siebold, Christian -- 082301/Wellcome Trust/United Kingdom -- 083111/Wellcome Trust/United Kingdom -- 090532/Wellcome Trust/United Kingdom -- 097301/Wellcome Trust/United Kingdom -- A14414/Cancer Research UK/United Kingdom -- G0700232/Medical Research Council/United Kingdom -- Medical Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2013 Jul 5;341(6141):77-80. doi: 10.1126/science.1232322. Epub 2013 Jun 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Structural Biology, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK. christian@strubi.ox.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23744777" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Biophysical Phenomena ; Cell Adhesion Molecules, Neuronal/*chemistry/genetics ; Conserved Sequence ; Crystallography, X-Ray ; Humans ; Membrane Proteins/*chemistry ; Mutation ; Oligopeptides/chemistry ; Protein Structure, Tertiary ; Signal Transduction
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    A secreted PTEN phosphatase that enters cells to alter signaling and survival (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-06-08
    Description: Phosphatase and tensin homolog on chromosome ten (PTEN) is a tumor suppressor and an antagonist of the phosphoinositide-3 kinase (PI3K) pathway. We identified a 576-amino acid translational variant of PTEN, termed PTEN-Long, that arises from an alternative translation start site 519 base pairs upstream of the ATG initiation sequence, adding 173 N-terminal amino acids to the normal PTEN open reading frame. PTEN-Long is a membrane-permeable lipid phosphatase that is secreted from cells and can enter other cells. As an exogenous agent, PTEN-Long antagonized PI3K signaling and induced tumor cell death in vitro and in vivo. By providing a means to restore a functional tumor-suppressor protein to tumor cells, PTEN-Long may have therapeutic uses.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3935617/" 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/PMC3935617/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hopkins, Benjamin D -- Fine, Barry -- Steinbach, Nicole -- Dendy, Meaghan -- Rapp, Zachary -- Shaw, Jacquelyn -- Pappas, Kyrie -- Yu, Jennifer S -- Hodakoski, Cindy -- Mense, Sarah -- Klein, Joshua -- Pegno, Sarah -- Sulis, Maria-Luisa -- Goldstein, Hannah -- Amendolara, Benjamin -- Lei, Liang -- Maurer, Matthew -- Bruce, Jeffrey -- Canoll, Peter -- Hibshoosh, Hanina -- Parsons, Ramon -- 2T32 CA09503/CA/NCI NIH HHS/ -- CA082783/CA/NCI NIH HHS/ -- CA097403/CA/NCI NIH HHS/ -- P01 CA097403/CA/NCI NIH HHS/ -- R01 CA082783/CA/NCI NIH HHS/ -- R01 CA155117/CA/NCI NIH HHS/ -- R01 NS066955/NS/NINDS NIH HHS/ -- R01 NS073610/NS/NINDS NIH HHS/ -- R01NS066955/NS/NINDS NIH HHS/ -- T32 CA009503/CA/NCI NIH HHS/ -- T32 GM008224/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 Jul 26;341(6144):399-402. doi: 10.1126/science.1234907. Epub 2013 Jun 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, 1470 Madison Avenue, New York, NY 10029, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23744781" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Line, Tumor ; *Cell Survival ; Embryonic Stem Cells ; Glioblastoma/drug therapy/metabolism/pathology ; HEK293 Cells ; Humans ; Mice ; Mice, Nude ; Molecular Sequence Data ; Mutation ; PTEN Phosphohydrolase/*chemistry/genetics/*metabolism/pharmacology ; Peptide Chain Initiation, Translational ; Phosphatidylinositol 3-Kinase/*metabolism ; Phosphorylation ; Proto-Oncogene Proteins c-akt/metabolism ; RNA, Messenger/genetics/metabolism ; *Signal Transduction/drug effects ; Xenograft Model Antitumor Assays
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    Substitutions near the receptor binding site determine major antigenic change during influenza virus evolution (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-11-23
    Description: The molecular basis of antigenic drift was determined for the hemagglutinin (HA) of human influenza A/H3N2 virus. From 1968 to 2003, antigenic change was caused mainly by single amino acid substitutions, which occurred at only seven positions in HA immediately adjacent to the receptor binding site. Most of these substitutions were involved in antigenic change more than once. Equivalent positions were responsible for the recent antigenic changes of influenza B and A/H1N1 viruses. Substitution of a single amino acid at one of these positions substantially changed the virus-specific antibody response in infected ferrets. These findings have potentially far-reaching consequences for understanding the evolutionary mechanisms that govern influenza viruses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koel, Bjorn F -- Burke, David F -- Bestebroer, Theo M -- van der Vliet, Stefan -- Zondag, Gerben C M -- Vervaet, Gaby -- Skepner, Eugene -- Lewis, Nicola S -- Spronken, Monique I J -- Russell, Colin A -- Eropkin, Mikhail Y -- Hurt, Aeron C -- Barr, Ian G -- de Jong, Jan C -- Rimmelzwaan, Guus F -- Osterhaus, Albert D M E -- Fouchier, Ron A M -- Smith, Derek J -- DP1-OD000490-01/OD/NIH HHS/ -- HHSN266200700010C/PHS HHS/ -- New York, N.Y. -- Science. 2013 Nov 22;342(6161):976-9. doi: 10.1126/science.1244730.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Viroscience, Erasmus MC, 3015GE Rotterdam, Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24264991" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Substitution/genetics/immunology ; Antigens, Viral/genetics/*immunology ; Binding Sites/genetics ; *Evolution, Molecular ; Hemagglutinin Glycoproteins, Influenza Virus/genetics/*immunology ; Humans ; Influenza A Virus, H3N2 Subtype/genetics/*immunology ; Mutation
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    Ribosomal protein SA haploinsufficiency in humans with isolated congenital asplenia (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-04-13
    Description: Isolated congenital asplenia (ICA) is characterized by the absence of a spleen at birth in individuals with no other developmental defects. The patients are prone to life-threatening bacterial infections. The unbiased analysis of exomes revealed heterozygous mutations in RPSA in 18 patients from eight kindreds, corresponding to more than half the patients and over one-third of the kindreds studied. The clinical penetrance in these kindreds is complete. Expression studies indicated that the mutations carried by the patients-a nonsense mutation, a frameshift duplication, and five different missense mutations-cause autosomal dominant ICA by haploinsufficiency. RPSA encodes ribosomal protein SA, a component of the small subunit of the ribosome. This discovery establishes an essential role for RPSA in human spleen development.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3677541/" 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/PMC3677541/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bolze, Alexandre -- Mahlaoui, Nizar -- Byun, Minji -- Turner, Bridget -- Trede, Nikolaus -- Ellis, Steven R -- Abhyankar, Avinash -- Itan, Yuval -- Patin, Etienne -- Brebner, Samuel -- Sackstein, Paul -- Puel, Anne -- Picard, Capucine -- Abel, Laurent -- Quintana-Murci, Lluis -- Faust, Saul N -- Williams, Anthony P -- Baretto, Richard -- Duddridge, Michael -- Kini, Usha -- Pollard, Andrew J -- Gaud, Catherine -- Frange, Pierre -- Orbach, Daniel -- Emile, Jean-Francois -- Stephan, Jean-Louis -- Sorensen, Ricardo -- Plebani, Alessandro -- Hammarstrom, Lennart -- Conley, Mary Ellen -- Selleri, Licia -- Casanova, Jean-Laurent -- 8UL1TR000043/TR/NCATS NIH HHS/ -- R01 HD061403/HD/NICHD NIH HHS/ -- R01HD061403/HD/NICHD NIH HHS/ -- UL1 TR000043/TR/NCATS NIH HHS/ -- New York, N.Y. -- Science. 2013 May 24;340(6135):976-8. doi: 10.1126/science.1234864. Epub 2013 Apr 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller University, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23579497" target="_blank"〉PubMed〈/a〉
    Keywords: DNA Mutational Analysis ; Genetic Loci ; *Haploinsufficiency ; Heterotaxy Syndrome/*genetics ; Humans ; Mutation ; Pedigree ; Penetrance ; Receptors, Laminin/*genetics ; Ribosomal Proteins/*genetics ; Spleen/*abnormalities/growth & development
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    C57BL/6N mutation in cytoplasmic FMRP interacting protein 2 regulates cocaine response (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-12-21
    Description: The inbred mouse C57BL/6J is the reference strain for genome sequence and for most behavioral and physiological phenotypes. However, the International Knockout Mouse Consortium uses an embryonic stem cell line derived from a related C57BL/6N substrain. We found that C57BL/6N has a lower acute and sensitized response to cocaine and methamphetamine. We mapped a single causative locus and identified a nonsynonymous mutation of serine to phenylalanine (S968F) in Cytoplasmic FMRP interacting protein 2 (Cyfip2) as the causative variant. The S968F mutation destabilizes CYFIP2, and deletion of the C57BL/6N mutant allele leads to acute and sensitized cocaine-response phenotypes. We propose that CYFIP2 is a key regulator of cocaine response in mammals and present a framework to use mouse substrains to identify previously unknown genes and alleles regulating behavior.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4500108/" 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/PMC4500108/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kumar, Vivek -- Kim, Kyungin -- Joseph, Chryshanthi -- Kourrich, Said -- Yoo, Seung-Hee -- Huang, Hung Chung -- Vitaterna, Martha H -- de Villena, Fernando Pardo-Manuel -- Churchill, Gary -- Bonci, Antonello -- Takahashi, Joseph S -- F32 DA024556/DA/NIDA NIH HHS/ -- F32DA024556/DA/NIDA NIH HHS/ -- U01 MH061915/MH/NIMH NIH HHS/ -- U01MH61915/MH/NIMH NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Dec 20;342(6165):1508-12. doi: 10.1126/science.1245503.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX 75390-9111, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24357318" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Substitution ; Animals ; Central Nervous System Stimulants/administration & dosage ; Cocaine/*administration & dosage ; Cocaine-Related Disorders/*genetics/*psychology ; *Drug-Seeking Behavior ; Methamphetamine/administration & dosage ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Motor Activity/drug effects ; Mutation ; Nerve Tissue Proteins/genetics/*physiology ; Phenylalanine/genetics ; Polymorphism, Single Nucleotide ; Psychomotor Performance/drug effects ; Quantitative Trait Loci ; Serine/genetics
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    H7N9 influenza viruses are transmissible in ferrets by respiratory droplet (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-07-23
    Description: A newly emerged H7N9 virus has caused 132 human infections with 37 deaths in China since 18 February 2013. Control measures in H7N9 virus-positive live poultry markets have reduced the number of infections; however, the character of the virus, including its pandemic potential, remains largely unknown. We systematically analyzed H7N9 viruses isolated from birds and humans. The viruses were genetically closely related and bound to human airway receptors; some also maintained the ability to bind to avian airway receptors. The viruses isolated from birds were nonpathogenic in chickens, ducks, and mice; however, the viruses isolated from humans caused up to 30% body weight loss in mice. Most importantly, one virus isolated from humans was highly transmissible in ferrets by respiratory droplet. Our findings indicate nothing to reduce the concern that these viruses can transmit between humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Qianyi -- Shi, Jianzhong -- Deng, Guohua -- Guo, Jing -- Zeng, Xianying -- He, Xijun -- Kong, Huihui -- Gu, Chunyang -- Li, Xuyong -- Liu, Jinxiong -- Wang, Guojun -- Chen, Yan -- Liu, Liling -- Liang, Libin -- Li, Yuanyuan -- Fan, Jun -- Wang, Jinliang -- Li, Wenhui -- Guan, Lizheng -- Li, Qimeng -- Yang, Huanliang -- Chen, Pucheng -- Jiang, Li -- Guan, Yuntao -- Xin, Xiaoguang -- Jiang, Yongping -- Tian, Guobin -- Wang, Xiurong -- Qiao, Chuanling -- Li, Chengjun -- Bu, Zhigao -- Chen, Hualan -- New York, N.Y. -- Science. 2013 Jul 26;341(6144):410-4. doi: 10.1126/science.1240532. Epub 2013 Jul 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150001, People's Republic of China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23868922" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chickens/virology ; Columbidae/virology ; Ducks/virology ; Ferrets/*virology ; Genes, Viral ; Hemagglutinin Glycoproteins, Influenza Virus/chemistry/genetics/metabolism ; Humans ; Influenza A virus/genetics/isolation & purification/*pathogenicity/physiology ; Influenza in Birds/virology ; Influenza, Human/*transmission/*virology ; Mice ; Mice, Inbred BALB C ; Molecular Sequence Data ; Mutation ; Orthomyxoviridae Infections/*transmission/*virology ; Receptors, Cell Surface/metabolism ; Receptors, Virus/metabolism ; Respiratory System/*virology ; Virus Replication
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    H5N1 hybrid viruses bearing 2009/H1N1 virus genes transmit in guinea pigs by respiratory droplet (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-05-04
    Description: In the past, avian influenza viruses have crossed species barriers to trigger human pandemics by reassorting with mammal-infective viruses in intermediate livestock hosts. H5N1 viruses are able to infect pigs, and some of them have affinity for the mammalian type alpha-2,6-linked sialic acid airway receptor. Using reverse genetics, we systematically created 127 reassortant viruses between a duck isolate of H5N1, specifically retaining its hemagglutinin (HA) gene throughout, and a highly transmissible, human-infective H1N1 virus. We tested the virulence of the reassortants in mice as a correlate for virulence in humans and tested transmissibility in guinea pigs, which have both avian and mammalian types of airway receptor. Transmission studies showed that the H1N1 virus genes encoding acidic polymerase and nonstructural protein made the H5N1 virus transmissible by respiratory droplet between guinea pigs without killing them. Further experiments implicated other H1N1 genes in the enhancement of mammal-to-mammal transmission, including those that encode nucleoprotein, neuraminidase, and matrix, as well as mutations in H5 HA that improve affinity for humanlike airway receptors. Hence, avian H5N1 subtype viruses do have the potential to acquire mammalian transmissibility by reassortment in current agricultural scenarios.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Ying -- Zhang, Qianyi -- Kong, Huihui -- Jiang, Yongping -- Gao, Yuwei -- Deng, Guohua -- Shi, Jianzhong -- Tian, Guobin -- Liu, Liling -- Liu, Jinxiong -- Guan, Yuntao -- Bu, Zhigao -- Chen, Hualan -- New York, N.Y. -- Science. 2013 Jun 21;340(6139):1459-63. doi: 10.1126/science.1229455. Epub 2013 May 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, People's Republic of China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23641061" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Brain/virology ; Cell Line ; Ferrets ; Genes, Viral ; Guinea Pigs ; Hemagglutinin Glycoproteins, Influenza Virus/chemistry/genetics ; Humans ; Influenza A Virus, H1N1 Subtype/*genetics/pathogenicity ; Influenza A Virus, H5N1 Subtype/*genetics/pathogenicity ; Influenza, Human/transmission/virology ; Mice ; Mice, Inbred BALB C ; Molecular Sequence Data ; Mutation ; Orthomyxoviridae Infections/*transmission/*virology ; Reassortant Viruses/*genetics/*pathogenicity ; Receptors, Cell Surface/metabolism ; Receptors, Virus/metabolism ; Respiratory System/*virology ; Reverse Genetics ; Ribonucleoproteins/metabolism ; Viral Proteins/genetics/metabolism ; Virus Replication
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    A role for Drosophila ATX2 in activation of PER translation and circadian behavior (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-05-21
    Description: A negative transcriptional feedback loop generates circadian rhythms in Drosophila. PERIOD (PER) is a critical state-variable in this mechanism, and its abundance is tightly regulated. We found that the Drosophila homolog of ATAXIN-2 (ATX2)--an RNA-binding protein implicated in human neurodegenerative diseases--was required for circadian locomotor behavior. ATX2 was necessary for PER accumulation in circadian pacemaker neurons and thus determined period length of circadian behavior. ATX2 was required for the function of TWENTY-FOUR (TYF), a crucial activator of PER translation. ATX2 formed a complex with TYF and promoted its interaction with polyadenylate-binding protein (PABP). Our work uncovers a role for ATX2 in circadian timing and reveals that this protein functions as an activator of PER translation in circadian neurons.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4078874/" 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/PMC4078874/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Yong -- Ling, Jinli -- Yuan, Chunyan -- Dubruille, Raphaelle -- Emery, Patrick -- GM100091/GM/NIGMS NIH HHS/ -- GM66777/GM/NIGMS NIH HHS/ -- GM79182/GM/NIGMS NIH HHS/ -- R01 GM066777/GM/NIGMS NIH HHS/ -- R01 GM079182/GM/NIGMS NIH HHS/ -- R01 GM100091/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 May 17;340(6134):879-82. doi: 10.1126/science.1234746.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, University of Massachusetts Medical School, 364 Plantation Street, Worcester, MA 01605, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23687048" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Ataxins ; *Circadian Rhythm ; Drosophila Proteins/*biosynthesis/genetics/metabolism ; Drosophila melanogaster/genetics/metabolism/*physiology ; Mutation ; Nerve Tissue Proteins/genetics/*physiology ; Neurons/*metabolism ; Period Circadian Proteins/*biosynthesis ; Poly(A)-Binding Proteins/metabolism ; Protein Biosynthesis ; RNA Interference
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    Targeted therapy resistance mediated by dynamic regulation of extrachromosomal mutant EGFR DNA (2013)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-12-07
    Description: Intratumoral heterogeneity contributes to cancer drug resistance, but the underlying mechanisms are not understood. Single-cell analyses of patient-derived models and clinical samples from glioblastoma patients treated with epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) demonstrate that tumor cells reversibly up-regulate or suppress mutant EGFR expression, conferring distinct cellular phenotypes to reach an optimal equilibrium for growth. Resistance to EGFR TKIs is shown to occur by elimination of mutant EGFR from extrachromosomal DNA. After drug withdrawal, reemergence of clonal EGFR mutations on extrachromosomal DNA follows. These results indicate a highly specific, dynamic, and adaptive route by which cancers can evade therapies that target oncogenes maintained on extrachromosomal DNA.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4049335/" 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/PMC4049335/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nathanson, David A -- Gini, Beatrice -- Mottahedeh, Jack -- Visnyei, Koppany -- Koga, Tomoyuki -- Gomez, German -- Eskin, Ascia -- Hwang, Kiwook -- Wang, Jun -- Masui, Kenta -- Paucar, Andres -- Yang, Huijun -- Ohashi, Minori -- Zhu, Shaojun -- Wykosky, Jill -- Reed, Rachel -- Nelson, Stanley F -- Cloughesy, Timothy F -- James, C David -- Rao, P Nagesh -- Kornblum, Harley I -- Heath, James R -- Cavenee, Webster K -- Furnari, Frank B -- Mischel, Paul S -- NS73831/NS/NINDS NIH HHS/ -- P01 CA095616/CA/NCI NIH HHS/ -- P01-CA95616/CA/NCI NIH HHS/ -- P30 CA023100/CA/NCI NIH HHS/ -- R01 NS052563/NS/NINDS NIH HHS/ -- R01 NS073831/NS/NINDS NIH HHS/ -- R01 NS080939/NS/NINDS NIH HHS/ -- R01-NS080939/NS/NINDS NIH HHS/ -- T32 CA009056/CA/NCI NIH HHS/ -- U54 CA151819/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2014 Jan 3;343(6166):72-6. doi: 10.1126/science.1241328. Epub 2013 Dec 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ludwig Institute for Cancer Research, University of California at San Diego, La Jolla, CA, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24310612" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antineoplastic Agents/*therapeutic use ; Central Nervous System Neoplasms/*drug therapy/genetics ; DNA/genetics ; Drug Resistance, Neoplasm/*genetics ; Erlotinib Hydrochloride ; Glioblastoma/*drug therapy/genetics ; Humans ; Mice ; *Molecular Targeted Therapy ; Mutation ; Neoplasm Transplantation ; Protein Kinase Inhibitors/*therapeutic use ; Quinazolines/therapeutic use ; Receptor, Epidermal Growth Factor/antagonists & inhibitors/*genetics ; Single-Cell Analysis ; Tumor Cells, Cultured ; Withholding Treatment
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    Evolution. The costs of breathing (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-10-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lane, Nick -- New York, N.Y. -- Science. 2011 Oct 14;334(6053):184-5. doi: 10.1126/science.1214012.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Evolution and Environment, University College London, London, UK. nick.lane@ucl.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21998376" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Adenosine Triphosphate/metabolism ; Aging ; Animals ; Apoptosis ; *Biological Evolution ; Cell Nucleus/*genetics/metabolism ; *Cell Respiration ; Cytochromes c/metabolism ; Electron Transport ; Embryonic Development ; Fertility ; *Genes, Mitochondrial ; Genetic Fitness ; Longevity ; Mitochondria/*metabolism ; Models, Biological ; Mutation ; Reactive Oxygen Species/*metabolism ; *Selection, Genetic ; Species Specificity
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    A sorting platform determines the order of protein secretion in bacterial type III systems (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-02-05
    Description: Bacterial type III protein secretion systems deliver effector proteins into eukaryotic cells in order to modulate cellular processes. Central to the function of these protein-delivery machines is their ability to recognize and secrete substrates in a defined order. Here, we describe a mechanism by which a type III secretion system from the bacterial enteropathogen Salmonella enterica serovar Typhimurium can sort its substrates before secretion. This mechanism involves a cytoplasmic sorting platform that is sequentially loaded with the appropriate secreted proteins. The sequential loading of this platform, facilitated by customized chaperones, ensures the hierarchy in type III protein secretion. Given the presence of these machines in many important pathogens, these findings can serve as the bases for the development of novel antimicrobial strategies.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3859126/" 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/PMC3859126/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lara-Tejero, Maria -- Kato, Junya -- Wagner, Samuel -- Liu, Xiaoyun -- Galan, Jorge E -- AI30492/AI/NIAID NIH HHS/ -- R01 AI030492/AI/NIAID NIH HHS/ -- U54 AI0157158/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2011 Mar 4;331(6021):1188-91. doi: 10.1126/science.1201476. Epub 2011 Feb 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Microbial Pathogenesis, Yale University School of Medicine, 295 Congress Avenue, New Haven, CT 06536, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21292939" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antigens, Bacterial/chemistry/metabolism ; Bacterial Proteins/chemistry/*metabolism ; Bacterial Secretion Systems/*physiology ; Cytoplasm/metabolism ; Membrane Proteins/chemistry/*metabolism ; Molecular Chaperones/chemistry/*metabolism ; Molecular Sequence Data ; Multiprotein Complexes/metabolism ; Mutation ; Protein Binding ; Protein Transport ; Salmonella typhimurium/genetics/*metabolism/*pathogenicity
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    A highly conserved neutralizing epitope on group 2 influenza A viruses (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-07-09
    Description: Current flu vaccines provide only limited coverage against seasonal strains of influenza viruses. The identification of V(H)1-69 antibodies that broadly neutralize almost all influenza A group 1 viruses constituted a breakthrough in the influenza field. Here, we report the isolation and characterization of a human monoclonal antibody CR8020 with broad neutralizing activity against most group 2 viruses, including H3N2 and H7N7, which cause severe human infection. The crystal structure of Fab CR8020 with the 1968 pandemic H3 hemagglutinin (HA) reveals a highly conserved epitope in the HA stalk distinct from the epitope recognized by the V(H)1-69 group 1 antibodies. Thus, a cocktail of two antibodies may be sufficient to neutralize most influenza A subtypes and, hence, enable development of a universal flu vaccine and broad-spectrum antibody therapies.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3210727/" 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/PMC3210727/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ekiert, Damian C -- Friesen, Robert H E -- Bhabha, Gira -- Kwaks, Ted -- Jongeneelen, Mandy -- Yu, Wenli -- Ophorst, Carla -- Cox, Freek -- Korse, Hans J W M -- Brandenburg, Boerries -- Vogels, Ronald -- Brakenhoff, Just P J -- Kompier, Ronald -- Koldijk, Martin H -- Cornelissen, Lisette A H M -- Poon, Leo L M -- Peiris, Malik -- Koudstaal, Wouter -- Wilson, Ian A -- Goudsmit, Jaap -- GM080209/GM/NIGMS NIH HHS/ -- HHSN272200900060C/PHS HHS/ -- T32 GM080209/GM/NIGMS NIH HHS/ -- T32 GM080209-03/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Aug 12;333(6044):843-50. doi: 10.1126/science.1204839. Epub 2011 Jul 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21737702" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Monoclonal/*immunology/isolation & purification ; Antibodies, Neutralizing/*immunology/isolation & purification ; Antibodies, Viral/*immunology/isolation & purification ; Antibody Specificity ; Antigens, Viral/chemistry/genetics/*immunology ; Binding Sites, Antibody ; Conserved Sequence ; Crystallography, X-Ray ; Epitopes/immunology ; Hemagglutinin Glycoproteins, Influenza Virus/chemistry/genetics/*immunology ; Humans ; Influenza A Virus, H3N2 Subtype/immunology ; Influenza A Virus, H7N7 Subtype/genetics/immunology ; Influenza A virus/*immunology ; Influenza Vaccines/immunology ; Influenza, Human/immunology/prevention & control/therapy ; Mice ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Neutralization Tests ; Orthomyxoviridae Infections/immunology/prevention & control ; Protein Conformation
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    Control of mitotic spindle angle by the RAS-regulated ERK1/2 pathway determines lung tube shape (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-07-19
    Description: During early lung development, airway tubes change shape. Tube length increases more than circumference as a large proportion of lung epithelial cells divide parallel to the airway longitudinal axis. We show that this bias is lost in mutants with increased extracellular signal-regulated kinase 1 (ERK1) and ERK2 activity, revealing a link between the ERK1/2 signaling pathway and the control of mitotic spindle orientation. Using a mathematical model, we demonstrate that change in airway shape can occur as a function of spindle angle distribution determined by ERK1/2 signaling, independent of effects on cell proliferation or cell size and shape. We identify sprouty genes, which encode negative regulators of fibroblast growth factor 10 (FGF10)-mediated RAS-regulated ERK1/2 signaling, as essential for controlling airway shape change during development through an effect on mitotic spindle orientation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4260627/" 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/PMC4260627/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tang, Nan -- Marshall, Wallace F -- McMahon, Martin -- Metzger, Ross J -- Martin, Gail R -- 5T32HL007185/HL/NHLBI NIH HHS/ -- R01 CA131201/CA/NCI NIH HHS/ -- R01 CA131261/CA/NCI NIH HHS/ -- R01 CA78711/CA/NCI NIH HHS/ -- R01 DE17744/DE/NIDCR NIH HHS/ -- R01 GM077004/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Jul 15;333(6040):342-5. doi: 10.1126/science.1204831.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy, University of California, San Francisco, CA 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21764747" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing ; Animals ; Cell Polarity ; Cell Proliferation ; Cell Shape ; Cell Size ; Epithelial Cells/cytology ; Fibroblast Growth Factor 10/genetics/metabolism ; Intracellular Signaling Peptides and Proteins ; Lung/cytology/*embryology/metabolism ; *MAP Kinase Signaling System ; Membrane Proteins/genetics/metabolism ; Mice ; Mice, Knockout ; Mitogen-Activated Protein Kinase 1/*metabolism ; Mitogen-Activated Protein Kinase 3/*metabolism ; Mitosis ; Models, Biological ; *Morphogenesis ; Mutation ; Organogenesis ; Phosphoproteins/genetics/metabolism ; Phosphorylation ; Proto-Oncogene Proteins p21(ras)/genetics/*metabolism ; Respiratory Mucosa/cytology/*embryology ; Spindle Apparatus/*physiology/ultrastructure
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    Mismatch repair, but not heteroduplex rejection, is temporally coupled to DNA replication (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-12-24
    Description: In eukaryotes, it is unknown whether mismatch repair (MMR) is temporally coupled to DNA replication and how strand-specific MMR is directed. We fused Saccharomyces cerevisiae MSH6 with cyclins to restrict the availability of the Msh2-Msh6 mismatch recognition complex to either S phase or G2/M phase of the cell cycle. The Msh6-S cyclin fusion was proficient for suppressing mutations at three loci that replicate at mid-S phase, whereas the Msh6-G2/M cyclin fusion was defective. However, the Msh6-G2/M cyclin fusion was functional for MMR at a very late-replicating region of the genome. In contrast, the heteroduplex rejection function of MMR during recombination was partially functional during both S phase and G2/M phase. These results indicate a temporal coupling of MMR, but not heteroduplex rejection, to DNA replication.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3806717/" 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/PMC3806717/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hombauer, Hans -- Srivatsan, Anjana -- Putnam, Christopher D -- Kolodner, Richard D -- GM50006/GM/NIGMS NIH HHS/ -- P30 CA023100/CA/NCI NIH HHS/ -- R01 GM050006/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Dec 23;334(6063):1713-6. doi: 10.1126/science.1210770.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ludwig Institute for Cancer Research, Departments of Medicine and Cellular and Molecular Medicine and Cancer Center, Moores-UCSD Cancer Center, University of California School of Medicine-San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0669, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22194578" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Division ; Cyclin B/genetics/metabolism ; *DNA Mismatch Repair ; *DNA Replication ; DNA, Fungal/*metabolism ; DNA-Binding Proteins/genetics/metabolism ; Frameshift Mutation ; G2 Phase ; Genes, Fungal ; Mutation ; Nucleic Acid Heteroduplexes/*metabolism ; Recombinant Fusion Proteins/metabolism ; Recombination, Genetic ; S Phase ; Saccharomyces cerevisiae/genetics/*metabolism/physiology ; Saccharomyces cerevisiae Proteins/genetics/metabolism
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    TAF1B is a TFIIB-like component of the basal transcription machinery for RNA polymerase I (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-17
    Description: Transcription by eukaryotic RNA polymerases (Pols) II and III and archaeal Pol requires structurally related general transcription factors TFIIB, Brf1, and TFB, respectively, which are essential for polymerase recruitment and initiation events. A TFIIB-like protein was not evident in the Pol I basal transcription machinery. We report that TAF1B, a subunit of human Pol I basal transcription factor SL1, is structurally related to TFIIB/TFIIB-like proteins, through predicted amino-terminal zinc ribbon and cyclin-like fold domains. SL1, essential for Pol I recruitment to the ribosomal RNA gene promoter, also has an essential postpolymerase recruitment role, operating through TAF1B. Therefore, a TFIIB-related protein is implicated in preinitiation complex assembly and postpolymerase recruitment events in Pol I transcription, underscoring the parallels between eukaryotic Pol I, II, and III and archaeal transcription machineries.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3566551/" 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/PMC3566551/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Naidu, Srivatsava -- Friedrich, J Karsten -- Russell, Jackie -- Zomerdijk, Joost C B M -- 085441/Wellcome Trust/United Kingdom -- 085441/Z/08/Z/Wellcome Trust/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2011 Sep 16;333(6049):1640-2. doi: 10.1126/science.1207656.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Trust Centre for Gene Regulation and Expression, College of Life Sciences, University of Dundee, Dundee DD1 5EH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21921199" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; DNA, Ribosomal ; Humans ; Molecular Sequence Data ; Mutant Proteins/chemistry/metabolism ; Mutation ; Pol1 Transcription Initiation Complex Proteins/*chemistry/genetics/*metabolism ; Promoter Regions, Genetic ; Protein Binding ; Protein Folding ; Protein Structure, Tertiary ; Protein Subunits/chemistry/metabolism ; RNA Polymerase I/*metabolism ; Transcription Factor TFIIB/*chemistry/metabolism ; *Transcription, Genetic
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    Precise manipulation of chromosomes in vivo enables genome-wide codon replacement (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-07-19
    Description: We present genome engineering technologies that are capable of fundamentally reengineering genomes from the nucleotide to the megabase scale. We used multiplex automated genome engineering (MAGE) to site-specifically replace all 314 TAG stop codons with synonymous TAA codons in parallel across 32 Escherichia coli strains. This approach allowed us to measure individual recombination frequencies, confirm viability for each modification, and identify associated phenotypes. We developed hierarchical conjugative assembly genome engineering (CAGE) to merge these sets of codon modifications into genomes with 80 precise changes, which demonstrate that these synonymous codon substitutions can be combined into higher-order strains without synthetic lethal effects. Our methods treat the chromosome as both an editable and an evolvable template, permitting the exploration of vast genetic landscapes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Isaacs, Farren J -- Carr, Peter A -- Wang, Harris H -- Lajoie, Marc J -- Sterling, Bram -- Kraal, Laurens -- Tolonen, Andrew C -- Gianoulis, Tara A -- Goodman, Daniel B -- Reppas, Nikos B -- Emig, Christopher J -- Bang, Duhee -- Hwang, Samuel J -- Jewett, Michael C -- Jacobson, Joseph M -- Church, George M -- K99 GM081450/GM/NIGMS NIH HHS/ -- R00 GM081450/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Jul 15;333(6040):348-53. doi: 10.1126/science.1205822.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Harvard Medical School, Boston, MA 02115, USA. farren.isaacs@yale.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21764749" target="_blank"〉PubMed〈/a〉
    Keywords: Chromosomes, Bacterial/*genetics ; *Codon, Terminator ; *Conjugation, Genetic ; Directed Molecular Evolution ; Escherichia coli/*genetics/growth & development/physiology ; Genetic Engineering/*methods ; *Genome, Bacterial ; Genomic Instability ; Mutagenesis, Site-Directed ; Mutation ; Phenotype ; Recombination, Genetic ; Templates, Genetic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Plant science. Plants get Hyp to O-glycosylation (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-06-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mohnen, Debra -- Tierney, Mary L -- New York, N.Y. -- Science. 2011 Jun 17;332(6036):1393-4. doi: 10.1126/science.1208641.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biochemistry and Molecular Biology, Complex Carbohydrate Research Center, BioEnergy Science Center, University of Georgia, Athens, GA 30602, USA. dmohnen@ccrc.uga.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21680834" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/genetics/growth & development/*metabolism ; Arabidopsis Proteins/metabolism ; Carbohydrate Conformation ; Cell Wall/*metabolism ; Gene Expression Regulation, Plant ; Glycoproteins/*metabolism ; Glycosylation ; Hydroxylation ; Hydroxyproline/*metabolism ; Models, Biological ; Mutation ; Pentosyltransferases/metabolism ; Phenotype ; Plant Proteins/*metabolism ; Plant Roots/anatomy & histology/growth & development/*metabolism ; Procollagen-Proline Dioxygenase/genetics/*metabolism ; Protein Processing, Post-Translational ; Substrate Specificity
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Active starvation responses mediate antibiotic tolerance in biofilms and nutrient-limited bacteria (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-11-19
    Description: Bacteria become highly tolerant to antibiotics when nutrients are limited. The inactivity of antibiotic targets caused by starvation-induced growth arrest is thought to be a key mechanism producing tolerance. Here we show that the antibiotic tolerance of nutrient-limited and biofilm Pseudomonas aeruginosa is mediated by active responses to starvation, rather than by the passive effects of growth arrest. The protective mechanism is controlled by the starvation-signaling stringent response (SR), and our experiments link SR-mediated tolerance to reduced levels of oxidant stress in bacterial cells. Furthermore, inactivating this protective mechanism sensitized biofilms by several orders of magnitude to four different classes of antibiotics and markedly enhanced the efficacy of antibiotic treatment in experimental infections.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4046891/" 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/PMC4046891/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nguyen, Dao -- Joshi-Datar, Amruta -- Lepine, Francois -- Bauerle, Elizabeth -- Olakanmi, Oyebode -- Beer, Karlyn -- McKay, Geoffrey -- Siehnel, Richard -- Schafhauser, James -- Wang, Yun -- Britigan, Bradley E -- Singh, Pradeep K -- K24 HL102246/HL/NHLBI NIH HHS/ -- R01 AI101307/AI/NIAID NIH HHS/ -- R56 AI091714/AI/NIAID NIH HHS/ -- Canadian Institutes of Health Research/Canada -- New York, N.Y. -- Science. 2011 Nov 18;334(6058):982-6. doi: 10.1126/science.1211037.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Medicine, Microbiology and Immunology, McGill University, Montreal, Quebec, Canada. dao.nguyen@mcgill.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22096200" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anti-Bacterial Agents/*pharmacology/therapeutic use ; Biofilms/*drug effects/growth & development ; Catalase/metabolism ; Drug Resistance, Bacterial ; Drug Tolerance ; Escherichia coli/drug effects/genetics/growth & development/physiology ; Female ; Hydroxyl Radical/metabolism ; Hydroxyquinolines/metabolism ; Mice ; Mice, Inbred C57BL ; Mutation ; Ofloxacin/pharmacology/therapeutic use ; Oxidative Stress ; Pseudomonas Infections/drug therapy/*microbiology ; Pseudomonas aeruginosa/*drug effects/genetics/growth & development/*physiology ; Serine/analogs & derivatives/pharmacology ; Superoxide Dismutase/metabolism
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    Neuronal GPCR controls innate immunity by regulating noncanonical unfolded protein response genes (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-04-09
    Description: The unfolded protein response (UPR), which is activated when unfolded or misfolded proteins accumulate in the endoplasmic reticulum, has been implicated in the normal physiology of immune defense and in several human diseases, including diabetes, cancer, neurodegenerative disease, and inflammatory disease. In this study, we found that the nervous system controlled the activity of a noncanonical UPR pathway required for innate immunity in Caenorhabditis elegans. OCTR-1, a putative octopamine G protein-coupled catecholamine receptor (GPCR, G protein-coupled receptor), functioned in sensory neurons designated ASH and ASI to actively suppress innate immune responses by down-regulating the expression of noncanonical UPR genes pqn/abu in nonneuronal tissues. Our findings suggest a molecular mechanism by which the nervous system may sense inflammatory responses and respond by controlling stress-response pathways at the organismal level.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3125668/" 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/PMC3125668/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, Jingru -- Singh, Varsha -- Kajino-Sakamoto, Rie -- Aballay, Alejandro -- GM070977/GM/NIGMS NIH HHS/ -- R01 GM070977/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 May 6;332(6030):729-32. doi: 10.1126/science.1203411. Epub 2011 Apr 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC 27705, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21474712" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacterial Load ; Caenorhabditis elegans/*genetics/*immunology/microbiology ; Caenorhabditis elegans Proteins/genetics/metabolism/*physiology ; Down-Regulation ; Endoplasmic Reticulum/metabolism ; *Genes, Helminth ; *Immunity, Innate ; Intestines/metabolism ; Membrane Proteins/genetics/metabolism ; Mitogen-Activated Protein Kinases/genetics/metabolism ; Mutation ; Pharynx/metabolism ; Pseudomonas aeruginosa/*immunology/pathogenicity ; Receptors, G-Protein-Coupled/genetics/*physiology ; Sensory Receptor Cells/*physiology ; Signal Transduction ; Stress, Physiological ; Transcription, Genetic ; Unfolded Protein Response/*genetics ; Up-Regulation
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    Inhibitory Fcgamma receptor engagement drives adjuvant and anti-tumor activities of agonistic CD40 antibodies (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-08-20
    Description: CD40, a member of the tumor necrosis factor receptor (TNFR) superfamily, is expressed on antigen-presenting cells (APCs) and is essential for immune activation. Although agonistic CD40 antibodies have been developed for immunotherapy, their clinical efficacy has been limited. We have found that coengagement of the Fc domain of agonistic CD40 monoclonal antibodies (mAbs) with the inhibitory Fcgamma receptor FcgammaRIIB is required for immune activation. Direct comparison of mAbs to CD40 enhanced for activating FcgammaR binding, hence capable of cytotoxicity, or for inhibitory FcgammaRIIB binding, revealed that enhancing FcgammaRIIB binding conferred immunostimulatory activity and considerably greater anti-tumor responses. This unexpected requirement for FcgammaRIIB in enhancing CD40-mediated immune activation has direct implications for the design of agonistic antibodies to TNFR as therapeutics.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3164589/" 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/PMC3164589/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Fubin -- Ravetch, Jeffrey V -- P01 AI051573/AI/NIAID NIH HHS/ -- P01 AI051573-10/AI/NIAID NIH HHS/ -- R01 CA080757/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2011 Aug 19;333(6045):1030-4. doi: 10.1126/science.1206954.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Genetics and Immunology, The Rockefeller University, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21852502" target="_blank"〉PubMed〈/a〉
    Keywords: *Adjuvants, Immunologic ; Animals ; Antibodies, Monoclonal/*immunology/therapeutic use ; Antibody Affinity ; Antibody-Dependent Cell Cytotoxicity ; Antigen-Presenting Cells/immunology ; Antigens, CD40/agonists/*immunology/metabolism ; Cytotoxicity, Immunologic ; Dendritic Cells/immunology ; Humans ; Immunoglobulin Fc Fragments/*immunology/metabolism ; Lymphocyte Activation ; Lymphoma, B-Cell/*immunology/*therapy ; Mice ; Mice, Inbred BALB C ; Mutation ; Ovalbumin/immunology ; Receptors, IgG/genetics/*immunology/metabolism ; T-Lymphocytes, Cytotoxic/immunology
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    RIM-binding protein, a central part of the active zone, is essential for neurotransmitter release (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-12-17
    Description: The molecular machinery mediating the fusion of synaptic vesicles (SVs) at presynaptic active zone (AZ) membranes has been studied in detail, and several essential components have been identified. AZ-associated protein scaffolds are viewed as only modulatory for transmission. We discovered that Drosophila Rab3-interacting molecule (RIM)-binding protein (DRBP) is essential not only for the integrity of the AZ scaffold but also for exocytotic neurotransmitter release. Two-color stimulated emission depletion microscopy showed that DRBP surrounds the central Ca(2+) channel field. In drbp mutants, Ca(2+) channel clustering and Ca(2+) influx were impaired, and synaptic release probability was drastically reduced. Our data identify RBP family proteins as prime effectors of the AZ scaffold that are essential for the coupling of SVs, Ca(2+) channels, and the SV fusion machinery.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Karen S Y -- Siebert, Matthias -- Mertel, Sara -- Knoche, Elena -- Wegener, Stephanie -- Wichmann, Carolin -- Matkovic, Tanja -- Muhammad, Karzan -- Depner, Harald -- Mettke, Christoph -- Buckers, Johanna -- Hell, Stefan W -- Muller, Martin -- Davis, Graeme W -- Schmitz, Dietmar -- Sigrist, Stephan J -- New York, N.Y. -- Science. 2011 Dec 16;334(6062):1565-9. doi: 10.1126/science.1212991.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Institute for Biology, Free University Berlin, 14195 Berlin, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22174254" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium Channels/physiology ; Carrier Proteins/*physiology ; Drosophila ; Drosophila Proteins/genetics/*physiology ; Male ; Mutation ; Neurotransmitter Agents/*metabolism ; Presynaptic Terminals/*physiology ; Synapses
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    The developmental role of Agouti in color pattern evolution (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-02-26
    Description: Animal color patterns can affect fitness in the wild; however, little is known about the mechanisms that control their formation and subsequent evolution. We took advantage of two locally camouflaged populations of Peromyscus mice to show that the negative regulator of adult pigmentation, Agouti, also plays a key developmental role in color pattern evolution. Genetic and functional analyses showed that ventral-specific embryonic expression of Agouti establishes a prepattern by delaying the terminal differentiation of ventral melanocytes. Moreover, a skin-specific increase in both the level and spatial domain of Agouti expression prevents melanocyte maturation in a regionalized manner, resulting in a novel and adaptive color pattern. Thus, natural selection favors late-acting, tissue-specific changes in embryonic Agouti expression to produce large changes in adult color pattern.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Manceau, Marie -- Domingues, Vera S -- Mallarino, Ricardo -- Hoekstra, Hopi E -- New York, N.Y. -- Science. 2011 Feb 25;331(6020):1062-5. doi: 10.1126/science.1200684.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21350176" target="_blank"〉PubMed〈/a〉
    Keywords: Agouti Signaling Protein/*genetics/metabolism ; Alleles ; Animals ; *Biological Evolution ; Body Patterning ; Cell Differentiation ; Cell Proliferation ; Dermis/cytology/embryology/metabolism ; Embryo, Mammalian ; Epidermis/cytology/embryology/metabolism ; Female ; Fetus ; Gene Expression ; *Gene Expression Regulation, Developmental ; Hair Color/*genetics ; Hair Follicle/cytology/embryology/metabolism ; Male ; Melanocytes/*cytology/physiology ; Mutation ; Peromyscus/*embryology/*genetics ; Skin/cytology/*embryology/metabolism
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    Transgenerational epigenetic instability is a source of novel methylation variants (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-17
    Description: Epigenetic information, which may affect an organism's phenotype, can be stored and stably inherited in the form of cytosine DNA methylation. Changes in DNA methylation can produce meiotically stable epialleles that affect transcription and morphology, but the rates of spontaneous gain or loss of DNA methylation are unknown. We examined spontaneously occurring variation in DNA methylation in Arabidopsis thaliana plants propagated by single-seed descent for 30 generations. We identified 114,287 CG single methylation polymorphisms and 2485 CG differentially methylated regions (DMRs), both of which show patterns of divergence compared with the ancestral state. Thus, transgenerational epigenetic variation in DNA methylation may generate new allelic states that alter transcription, providing a mechanism for phenotypic diversity in the absence of genetic mutation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3210014/" 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/PMC3210014/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schmitz, Robert J -- Schultz, Matthew D -- Lewsey, Mathew G -- O'Malley, Ronan C -- Urich, Mark A -- Libiger, Ondrej -- Schork, Nicholas J -- Ecker, Joseph R -- F32 HG004830/HG/NHGRI NIH HHS/ -- F32 HG004830-01/HG/NHGRI NIH HHS/ -- F32 HG004830-02/HG/NHGRI NIH HHS/ -- F32 HG004830-03/HG/NHGRI NIH HHS/ -- F32-HG004830/HG/NHGRI NIH HHS/ -- R01 HG003523/HG/NHGRI NIH HHS/ -- R01 HG003523-01/HG/NHGRI NIH HHS/ -- R01 HG003523-02/HG/NHGRI NIH HHS/ -- R01 HG003523-03/HG/NHGRI NIH HHS/ -- UL1 RR025774/RR/NCRR NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Oct 21;334(6054):369-73. doi: 10.1126/science.1212959. Epub 2011 Sep 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Plant Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21921155" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Arabidopsis/*genetics/metabolism ; *DNA Methylation ; DNA Transposable Elements ; DNA, Intergenic ; DNA, Plant/genetics/metabolism ; Dinucleoside Phosphates/metabolism ; *Epigenesis, Genetic ; Genes, Plant ; Genetic Variation ; Genome, Plant ; Linear Models ; Mutation ; Polymorphism, Genetic ; Promoter Regions, Genetic ; Transcription, Genetic
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    Plant science. Innate immunity in plants goes to the PUB (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-06-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Neill, Luke A J -- New York, N.Y. -- Science. 2011 Jun 17;332(6036):1386-7. doi: 10.1126/science.1208448.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Biochemistry and Immunology, Trinity College Dublin, Dublin 2, Ireland. laoneill@tcd.ie〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21680829" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/*immunology/metabolism/microbiology ; Arabidopsis Proteins/chemistry/genetics/*metabolism ; Flagellin/*immunology ; *Immunity, Innate ; Mutant Proteins/chemistry/metabolism ; Mutation ; Phosphorylation ; Plant Diseases/*immunology/microbiology ; Protein Kinases/chemistry/*metabolism ; Protein-Serine-Threonine Kinases/genetics/*metabolism ; Pseudomonas/immunology ; Receptors, Pattern Recognition/chemistry/*metabolism ; Signal Transduction ; Ubiquitin-Protein Ligases/chemistry/genetics/*metabolism ; Ubiquitinated Proteins/metabolism ; Ubiquitination
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    Homoplasy: from detecting pattern to determining process and mechanism of evolution (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-02-26
    Description: Understanding the diversification of phenotypes through time--"descent with modification"--has been the focus of evolutionary biology for 150 years. If, contrary to expectations, similarity evolves in unrelated taxa, researchers are guided to uncover the genetic and developmental mechanisms responsible. Similar phenotypes may be retained from common ancestry (homology), but a phylogenetic context may instead reveal that they are independently derived, due to convergence or parallel evolution, or less likely, that they experienced reversal. Such examples of homoplasy present opportunities to discover the foundations of morphological traits. A common underlying mechanism may exist, and components may have been redeployed in a way that produces the "same" phenotype. New, robust phylogenetic hypotheses and molecular, genomic, and developmental techniques enable integrated exploration of the mechanisms by which similarity arises.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wake, David B -- Wake, Marvalee H -- Specht, Chelsea D -- New York, N.Y. -- Science. 2011 Feb 25;331(6020):1032-5. doi: 10.1126/science.1188545.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Museum of Vertebrate Zoology, University of California, Berkeley, CA 94720, USA. davidbwake@gmail.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21350170" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Animals ; *Biological Evolution ; Morphogenesis/genetics ; Mutation ; *Phenotype ; Phylogeny ; Plants/genetics ; Selection, Genetic
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    Three-dimensional model of Salmonella's needle complex at subnanometer resolution (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-03-10
    Description: Type III secretion systems (T3SSs) are essential virulence factors used by many Gram-negative bacteria to inject proteins that make eukaryotic host cells accessible to invasion. The T3SS core structure, the needle complex (NC), is a ~3.5 megadalton-sized, oligomeric, membrane-embedded complex. Analyzing cryo-electron microscopy images of top views of NCs or NC substructures from Salmonella typhimurium revealed a 24-fold symmetry for the inner rings and a 15-fold symmetry for the outer rings, giving an overall C3 symmetry. Local refinement and averaging showed the organization of the central core and allowed us to reconstruct a subnanometer composite structure of the NC, which together with confident docking of atomic structures reveal insights into its overall organization and structural requirements during assembly.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schraidt, Oliver -- Marlovits, Thomas C -- New York, N.Y. -- Science. 2011 Mar 4;331(6021):1192-5. doi: 10.1126/science.1199358.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Research Institute of Molecular Pathology, Dr. Bohr Gasse 7, A-1030 Vienna, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21385715" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Proteins/*chemistry/ultrastructure ; *Bacterial Secretion Systems ; Cryoelectron Microscopy ; Crystallography, X-Ray ; Image Processing, Computer-Assisted ; Membrane Proteins/*chemistry/ultrastructure ; Membrane Transport Proteins/*chemistry/ultrastructure ; Models, Molecular ; Mutation ; Protein Conformation ; Protein Structure, Tertiary ; Salmonella typhimurium/*chemistry
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    O-glycosylated cell wall proteins are essential in root hair growth (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-06-18
    Description: Root hairs are single cells that develop by tip growth and are specialized in the absorption of nutrients. Their cell walls are composed of polysaccharides and hydroxyproline-rich glycoproteins (HRGPs) that include extensins (EXTs) and arabinogalactan-proteins (AGPs). Proline hydroxylation, an early posttranslational modification of HRGPs that is catalyzed by prolyl 4-hydroxylases (P4Hs), defines the subsequent O-glycosylation sites in EXTs (which are mainly arabinosylated) and AGPs (which are mainly arabinogalactosylated). We explored the biological function of P4Hs, arabinosyltransferases, and EXTs in root hair cell growth. Biochemical inhibition or genetic disruption resulted in the blockage of polarized growth in root hairs and reduced arabinosylation of EXTs. Our results demonstrate that correct O-glycosylation on EXTs is essential for cell-wall self-assembly and, hence, root hair elongation in Arabidopsis thaliana.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Velasquez, Silvia M -- Ricardi, Martiniano M -- Dorosz, Javier Gloazzo -- Fernandez, Paula V -- Nadra, Alejandro D -- Pol-Fachin, Laercio -- Egelund, Jack -- Gille, Sascha -- Harholt, Jesper -- Ciancia, Marina -- Verli, Hugo -- Pauly, Markus -- Bacic, Antony -- Olsen, Carl Erik -- Ulvskov, Peter -- Petersen, Bent Larsen -- Somerville, Chris -- Iusem, Norberto D -- Estevez, Jose M -- New York, N.Y. -- Science. 2011 Jun 17;332(6036):1401-3. doi: 10.1126/science.1206657.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Instituto de Fisiologia, Biologia Molecular y Neurociencias-Consejo Nacional de Investigaciones Cientificas y Tecnicas (IFIByNE-CONICET), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21680836" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/genetics/growth & development/*metabolism ; Arabidopsis Proteins/chemistry/genetics/*metabolism ; Arabinose/metabolism ; Carbohydrate Conformation ; Cell Wall/*metabolism ; Gene Expression Regulation, Plant ; Genes, Plant ; Glycoproteins/chemistry/*metabolism ; Glycosylation ; Glycosyltransferases/genetics/metabolism ; Hydroxylation ; Hydroxyproline/*metabolism ; Models, Biological ; Mutation ; Pentosyltransferases/chemistry/metabolism ; Phenotype ; Plant Proteins/chemistry/*metabolism ; Plant Roots/cytology/*growth & development/metabolism ; Polysaccharides/chemistry ; Procollagen-Proline Dioxygenase/genetics/*metabolism ; Proline/metabolism ; Protein Conformation ; Protein Processing, Post-Translational ; Protein Structure, Secondary
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    Medicine. Personalized cancer diagnostics (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-12-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Corless, Christopher L -- New York, N.Y. -- Science. 2011 Dec 2;334(6060):1217-8. doi: 10.1126/science.1216427.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Oregon Health & Science University, Portland, OR 97201, USA. corlessc@ohsu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22144608" target="_blank"〉PubMed〈/a〉
    Keywords: Costs and Cost Analysis ; DNA, Neoplasm/*genetics ; *Exome ; Genome, Human ; *High-Throughput Nucleotide Sequencing/economics ; Humans ; Mutation ; Neoplasms/*diagnosis/*genetics/therapy ; Pilot Projects ; Precision Medicine ; *Sequence Analysis, DNA/economics ; *Transcriptome
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    European Society for Evolutionary Biology meeting. Tracing the common roots of antibiotic resistance (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2011 Sep 16;333(6049):1562-3. doi: 10.1126/science.333.6049.1562-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21921169" target="_blank"〉PubMed〈/a〉
    Keywords: Anti-Bacterial Agents/*pharmacology ; Bacteria/*drug effects/genetics ; Burkholderia/drug effects/genetics ; Burkholderia Infections/epidemiology/microbiology ; Cystic Fibrosis/microbiology ; Disease Outbreaks ; Drug Resistance, Bacterial/*genetics ; Escherichia coli/drug effects/genetics ; *Evolution, Molecular ; Humans ; Mutation ; *Selection, Genetic
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    Genome-sequencing anniversary. Faces of the genome (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-02-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Collins, Francis S -- New York, N.Y. -- Science. 2011 Feb 4;331(6017):546. doi: 10.1126/science.1202894.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Institutes of Health, Bethesda, MD, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21292963" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; *Genetics, Medical ; *Genome, Human ; *Human Genome Project ; Humans ; Male ; Mutation ; National Institutes of Health (U.S.) ; *Sequence Analysis, DNA ; *Translational Medical Research ; United States
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    Dynamics of Dpp signaling and proliferation control (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-10
    Description: Morphogens, such as Decapentaplegic (Dpp) in the fly imaginal discs, form graded concentration profiles that control patterning and growth of developing organs. In the imaginal discs, proliferative growth is homogeneous in space, posing the conundrum of how morphogen concentration gradients could control position-independent growth. To understand the mechanism of proliferation control by the Dpp gradient, we quantified Dpp concentration and signaling levels during wing disc growth. Both Dpp concentration and signaling gradients scale with tissue size during development. On average, cells divide when Dpp signaling levels have increased by 50%. Our observations are consistent with a growth control mechanism based on temporal changes of cellular morphogen signaling levels. For a scaling gradient, this mechanism generates position-independent growth rates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wartlick, O -- Mumcu, P -- Kicheva, A -- Bittig, T -- Seum, C -- Julicher, F -- Gonzalez-Gaitan, M -- New York, N.Y. -- Science. 2011 Mar 4;331(6021):1154-9. doi: 10.1126/science.1200037.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Faculty of Sciences, Geneva University, 30 Quai Ernest-Ansermet, 1211 Geneva, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21385708" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Cycle ; *Cell Proliferation ; Computer Simulation ; Drosophila Proteins/*metabolism ; Drosophila melanogaster/cytology/genetics/*growth & development/*metabolism ; Intercellular Signaling Peptides and Proteins/*metabolism ; Models, Biological ; Morphogenesis ; Mutation ; *Signal Transduction ; Wings, Animal/anatomy & histology/cytology/*growth & development/*metabolism
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    Global tissue revolutions in a morphogenetic movement controlling elongation (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-01-08
    Description: Polarized cell behaviors drive axis elongation in animal embryos, but the mechanisms underlying elongation of many tissues remain unknown. Eggs of Drosophila undergo elongation from a sphere to an ellipsoid during oogenesis. We used live imaging of follicles (developing eggs) to elucidate the cellular basis of egg elongation. We find that elongating follicles undergo repeated rounds of circumferential rotation around their long axes. Follicle epithelia mutant for integrin or collagen IV fail to rotate and elongate, which results in round eggs. We present evidence that polarized rotation is required to build a polarized, fibrillar extracellular matrix (ECM) that constrains tissue shape. Thus, global tissue rotation is a morphogenetic behavior that uses planar polarity information in the ECM to control tissue elongation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3153412/" 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/PMC3153412/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Haigo, Saori L -- Bilder, David -- R01 GM068675/GM/NIGMS NIH HHS/ -- R01 GM068675-07/GM/NIGMS NIH HHS/ -- R01 GM068675-07S1/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Feb 25;331(6020):1071-4. doi: 10.1126/science.1199424. Epub 2011 Jan 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cell Biology, 379 Life Sciences Addition no. 3200, University of California, Berkeley, Berkeley, CA 94720-3200, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21212324" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Basement Membrane/physiology ; Cell Division ; Cell Polarity ; Cell Shape ; Collagen Type IV/chemistry/genetics/physiology ; Drosophila Proteins/chemistry/genetics/physiology ; Drosophila melanogaster/genetics/*physiology ; Epithelium/physiology ; Extracellular Matrix/chemistry/*physiology ; Female ; Integrins/genetics/physiology ; Morphogenesis ; Mutation ; *Oogenesis ; Ovum/*cytology ; Recombinant Fusion Proteins/metabolism ; Rotation
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    Direct interaction of RNA polymerase II and mediator required for transcription in vivo (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-19
    Description: Gene transcription is highly regulated. Altered transcription can lead to cancer or developmental diseases. Mediator, a multisubunit complex conserved among eukaryotes, is generally required for RNA polymerase II (Pol II) transcription. An interaction between the two complexes is known, but its molecular nature and physiological role are unclear. We identify a direct physical interaction between the Rpb3 Pol II subunit of Saccharomyces cerevisiae and the essential Mediator subunit, Med17. Furthermore, we demonstrate a functional element in the Mediator-Pol II interface that is important for genome-wide Pol II recruitment in vivo. Our findings suggest that a direct interaction between Mediator and Pol II is generally required for transcription of class II genes in eukaryotes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Soutourina, Julie -- Wydau, Sandra -- Ambroise, Yves -- Boschiero, Claire -- Werner, Michel -- New York, N.Y. -- Science. 2011 Mar 18;331(6023):1451-4. doi: 10.1126/science.1200188.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Commissariat a l'Energie Atomique et aux Energies Alternatives, iBiTec-S, Service de Biologie Integrative et Genetique Moleculaire, Gif-sur-Yvette cedex, France. julie.soutourina@cea.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21415355" target="_blank"〉PubMed〈/a〉
    Keywords: Chromatin Immunoprecipitation ; Galactokinase/genetics ; Genes, Fungal ; Genome, Fungal ; Mediator Complex/genetics/*metabolism ; Mutation ; Promoter Regions, Genetic ; Protein Binding ; RNA Polymerase II/*metabolism ; Saccharomyces cerevisiae/*genetics/metabolism ; Saccharomyces cerevisiae Proteins/genetics/*metabolism ; Temperature ; *Transcription, Genetic
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    Ribozyme-catalyzed transcription of an active ribozyme (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-04-09
    Description: A critical event in the origin of life is thought to have been the emergence of an RNA molecule capable of replicating a primordial RNA "genome." Here we describe the evolution and engineering of an RNA polymerase ribozyme capable of synthesizing RNAs of up to 95 nucleotides in length. To overcome its sequence dependence, we recombined traits evolved separately in different ribozyme lineages. This yielded a more general polymerase ribozyme that was able to synthesize a wider spectrum of RNA sequences, as we demonstrate by the accurate synthesis of an enzymatically active RNA, a hammerhead endonuclease ribozyme. This recapitulates a central aspect of an RNA-based genetic system: the RNA-catalyzed synthesis of an active ribozyme from an RNA template.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wochner, Aniela -- Attwater, James -- Coulson, Alan -- Holliger, Philipp -- MC_U105178804/Medical Research Council/United Kingdom -- MC_US_A024_0014/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2011 Apr 8;332(6026):209-12. doi: 10.1126/science.1200752.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council (MRC) Laboratory of Molecular Biology, Hills Road, Cambridge CB2 0QH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21474753" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Biocatalysis ; Directed Molecular Evolution ; Genetic Engineering ; Mutation ; Nucleic Acid Conformation ; RNA/*chemistry/genetics/metabolism ; RNA Replicase/*chemistry/genetics/*metabolism ; RNA, Catalytic/*chemistry/genetics/*metabolism ; Selection, Genetic ; Templates, Genetic ; *Transcription, Genetic
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    Processive movement of MreB-associated cell wall biosynthetic complexes in bacteria (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-06-04
    Description: The peptidoglycan cell wall and the actin-like MreB cytoskeleton are major determinants of cell shape in rod-shaped bacteria. The prevailing model postulates that helical, membrane-associated MreB filaments organize elongation-specific peptidoglycan-synthesizing complexes along sidewalls. We used total internal reflection fluorescence microscopy to visualize the dynamic relation between MreB isoforms and cell wall synthesis in live Bacillus subtilis cells. During exponential growth, MreB proteins did not form helical structures. Instead, together with other morphogenetic factors, they assembled into discrete patches that moved processively along peripheral tracks perpendicular to the cell axis. Patch motility was largely powered by cell wall synthesis, and MreB polymers restricted diffusion of patch components in the membrane and oriented patch motion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dominguez-Escobar, Julia -- Chastanet, Arnaud -- Crevenna, Alvaro H -- Fromion, Vincent -- Wedlich-Soldner, Roland -- Carballido-Lopez, Rut -- New York, N.Y. -- Science. 2011 Jul 8;333(6039):225-8. doi: 10.1126/science.1203466. Epub 2011 Jun 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute of Biochemistry, Martinsried, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21636744" target="_blank"〉PubMed〈/a〉
    Keywords: Anti-Bacterial Agents/pharmacology ; Bacillus subtilis/*growth & development/*metabolism/ultrastructure ; Bacterial Proteins/chemistry/genetics/*metabolism ; Cell Membrane/metabolism ; Cell Wall/*metabolism/ultrastructure ; Diffusion ; Membrane Proteins/chemistry/metabolism ; Microscopy, Fluorescence ; Models, Biological ; Morphogenesis ; Motion ; Mutation ; Peptidoglycan/*metabolism ; Polymerization ; Protein Isoforms/chemistry/metabolism ; Recombinant Fusion Proteins/chemistry/metabolism
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    Immunology. An innate role for IL-17 (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-04-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dominguez-Villar, Margarita -- Hafler, David A -- New York, N.Y. -- Science. 2011 Apr 1;332(6025):47-8. doi: 10.1126/science.1205311.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology and Immunobiology, Yale School of Medicine, New Haven, CT 06520, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21454778" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Candidiasis, Chronic Mucocutaneous/genetics/*immunology ; Humans ; Interleukin-17/*immunology ; Mutation ; Receptors, Interleukin-17/*genetics ; Signal Transduction/genetics ; Th17 Cells/immunology
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    High relatedness is necessary and sufficient to maintain multicellularity in Dictyostelium (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-12-17
    Description: Most complex multicellular organisms develop clonally from a single cell. This should limit conflicts between cell lineages that could threaten the extensive cooperation of cells within multicellular bodies. Cellular composition can be manipulated in the social amoeba Dictyostelium discoideum, which allows us to test and confirm the two key predictions of this theory. Experimental evolution at low relatedness favored cheating mutants that could destroy multicellular development. However, under high relatedness, the forces of mutation and within-individual selection are too small for these destructive cheaters to spread, as shown by a mutation accumulation experiment. Thus, we conclude that the single-cell bottleneck is a powerful stabilizer of cellular cooperation in multicellular organisms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kuzdzal-Fick, Jennie J -- Fox, Sara A -- Strassmann, Joan E -- Queller, David C -- New York, N.Y. -- Science. 2011 Dec 16;334(6062):1548-51. doi: 10.1126/science.1213272.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, Rice University, Houston, TX 77005, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22174251" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Clone Cells/cytology ; Dictyostelium/*cytology/genetics/*physiology ; Models, Biological ; Mutation ; Reproduction ; Spores, Protozoan
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    Classic selective sweeps were rare in recent human evolution (2011)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2011-02-19
    Description: Efforts to identify the genetic basis of human adaptations from polymorphism data have sought footprints of "classic selective sweeps" (in which a beneficial mutation arises and rapidly fixes in the population).Yet it remains unknown whether this form of natural selection was common in our evolution. We examined the evidence for classic sweeps in resequencing data from 179 human genomes. As expected under a recurrent-sweep model, we found that diversity levels decrease near exons and conserved noncoding regions. In contrast to expectation, however, the trough in diversity around human-specific amino acid substitutions is no more pronounced than around synonymous substitutions. Moreover, relative to the genome background, amino acid and putative regulatory sites are not significantly enriched in alleles that are highly differentiated between populations. These findings indicate that classic sweeps were not a dominant mode of human adaptation over the past ~250,000 years.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3669691/" 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/PMC3669691/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hernandez, Ryan D -- Kelley, Joanna L -- Elyashiv, Eyal -- Melton, S Cord -- Auton, Adam -- McVean, Gilean -- 1000 Genomes Project -- Sella, Guy -- Przeworski, Molly -- 086084/Wellcome Trust/United Kingdom -- GM083228/GM/NIGMS NIH HHS/ -- GM087069/GM/NIGMS NIH HHS/ -- GM20373/GM/NIGMS NIH HHS/ -- GM72861/GM/NIGMS NIH HHS/ -- R01 GM072861/GM/NIGMS NIH HHS/ -- R01 HG007644/HG/NHGRI NIH HHS/ -- U54 HG003273/HG/NHGRI NIH HHS/ -- WT086084MA/Wellcome Trust/United Kingdom -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Feb 18;331(6019):920-4. doi: 10.1126/science.1198878.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21330547" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Amino Acid Substitution ; *Biological Evolution ; Chromosomes, Human, X/genetics ; Conserved Sequence ; Evolution, Molecular ; Exons ; Gene Frequency ; *Genetic Variation ; *Genome, Human ; Haplotypes ; Humans ; Models, Genetic ; Molecular Sequence Annotation ; Mutation ; Polymorphism, Single Nucleotide ; Recombination, Genetic ; *Selection, Genetic ; Untranslated Regions
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