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  • Articles  (14)
  • Protein Structure, Tertiary  (14)
  • American Association for the Advancement of Science (AAAS)  (14)
  • American Meteorological Society
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  • 2010-2014  (14)
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  • Articles  (14)
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  • American Association for the Advancement of Science (AAAS)  (14)
  • American Meteorological Society
  • Annual Reviews
  • Elsevier
  • Nature Publishing Group (NPG)  (24)
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  • 2010-2014  (14)
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  • 1
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    Frequent mutation of BAP1 in metastasizing uveal melanomas (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-11-06
    Description: Metastasis is a defining feature of malignant tumors and is the most common cause of cancer-related death, yet the genetics of metastasis are poorly understood. We used exome capture coupled with massively parallel sequencing to search for metastasis-related mutations in highly metastatic uveal melanomas of the eye. Inactivating somatic mutations were identified in the gene encoding BRCA1-associated protein 1 (BAP1) on chromosome 3p21.1 in 26 of 31 (84%) metastasizing tumors, including 15 mutations causing premature protein termination and 5 affecting its ubiquitin carboxyl-terminal hydrolase domain. One tumor harbored a frameshift mutation that was germline in origin, thus representing a susceptibility allele. These findings implicate loss of BAP1 in uveal melanoma metastasis and suggest that the BAP1 pathway may be a valuable therapeutic target.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3087380/" 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/PMC3087380/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harbour, J William -- Onken, Michael D -- Roberson, Elisha D O -- Duan, Shenghui -- Cao, Li -- Worley, Lori A -- Council, M Laurin -- Matatall, Katie A -- Helms, Cynthia -- Bowcock, Anne M -- AR007279-31A1/AR/NIAMS NIH HHS/ -- P30 EY02687C/EY/NEI NIH HHS/ -- R01 CA125970/CA/NCI NIH HHS/ -- R01 CA125970-06/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2010 Dec 3;330(6009):1410-3. doi: 10.1126/science.1194472. Epub 2010 Nov 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, St. Louis, MO 63110, USA. harbour@vision.wustl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21051595" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line, Tumor ; Chromosome Deletion ; Chromosomes, Human, Pair 3/genetics ; Frameshift Mutation ; Germ-Line Mutation ; Humans ; Melanoma/*genetics/*secondary ; *Mutation ; Mutation, Missense ; *Neoplasm Metastasis ; Protein Structure, Tertiary ; RNA Interference ; RNA, Messenger/genetics/metabolism ; RNA, Neoplasm/genetics/metabolism ; Sequence Analysis, DNA ; Tumor Suppressor Proteins/chemistry/*genetics/metabolism ; Ubiquitin Thiolesterase/chemistry/*genetics/metabolism ; Uveal Neoplasms/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
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  • 2
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    Atomic structure of human adenovirus by cryo-EM reveals interactions among protein networks (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-08-28
    Description: Construction of a complex virus may involve a hierarchy of assembly elements. Here, we report the structure of the whole human adenovirus virion at 3.6 angstroms resolution by cryo-electron microscopy (cryo-EM), revealing in situ atomic models of three minor capsid proteins (IIIa, VIII, and IX), extensions of the (penton base and hexon) major capsid proteins, and interactions within three protein-protein networks. One network is mediated by protein IIIa at the vertices, within group-of-six (GOS) tiles--a penton base and its five surrounding hexons. Another is mediated by ropes (protein IX) that lash hexons together to form group-of-nine (GON) tiles and bind GONs to GONs. The third, mediated by IIIa and VIII, binds each GOS to five surrounding GONs. Optimization of adenovirus for cancer and gene therapy could target these networks.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3412078/" 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/PMC3412078/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Hongrong -- Jin, Lei -- Koh, Sok Boon S -- Atanasov, Ivo -- Schein, Stan -- Wu, Lily -- Zhou, Z Hong -- 1S10RR23057/RR/NCRR NIH HHS/ -- AI069015/AI/NIAID NIH HHS/ -- CA101904/CA/NCI NIH HHS/ -- GM071940/GM/NIGMS NIH HHS/ -- R01 AI069015/AI/NIAID NIH HHS/ -- R01 CA101904/CA/NCI NIH HHS/ -- R01 GM071940/GM/NIGMS NIH HHS/ -- S10 RR023057/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2010 Aug 27;329(5995):1038-43. doi: 10.1126/science.1187433.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles (UCLA), Los Angeles, CA 90095-7364, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20798312" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviruses, Human/*chemistry/genetics/metabolism/*ultrastructure ; Capsid/chemistry/ultrastructure ; Capsid Proteins/*chemistry/metabolism/ultrastructure ; Cryoelectron Microscopy ; Genome, Viral ; Image Processing, Computer-Assisted ; Models, Molecular ; Protein Binding ; Protein Conformation ; Protein Interaction Domains and Motifs ; Protein Multimerization ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Virion/chemistry/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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  • 3
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    Structural basis for broad and potent neutralization of HIV-1 by antibody VRC01 (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-07-10
    Description: During HIV-1 infection, antibodies are generated against the region of the viral gp120 envelope glycoprotein that binds CD4, the primary receptor for HIV-1. Among these antibodies, VRC01 achieves broad neutralization of diverse viral strains. We determined the crystal structure of VRC01 in complex with a human immunodeficiency virus HIV-1 gp120 core. VRC01 partially mimics CD4 interaction with gp120. A shift from the CD4-defined orientation, however, focuses VRC01 onto the vulnerable site of initial CD4 attachment, allowing it to overcome the glycan and conformational masking that diminishes the neutralization potency of most CD4-binding-site antibodies. To achieve this recognition, VRC01 contacts gp120 mainly through immunoglobulin V-gene regions substantially altered from their genomic precursors. Partial receptor mimicry and extensive affinity maturation thus facilitate neutralization of HIV-1 by natural human antibodies.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2981354/" 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/PMC2981354/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhou, Tongqing -- Georgiev, Ivelin -- Wu, Xueling -- Yang, Zhi-Yong -- Dai, Kaifan -- Finzi, Andres -- Kwon, Young Do -- Scheid, Johannes F -- Shi, Wei -- Xu, Ling -- Yang, Yongping -- Zhu, Jiang -- Nussenzweig, Michel C -- Sodroski, Joseph -- Shapiro, Lawrence -- Nabel, Gary J -- Mascola, John R -- Kwong, Peter D -- P30 AI060354/AI/NIAID NIH HHS/ -- Z99 AI999999/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2010 Aug 13;329(5993):811-7. doi: 10.1126/science.1192819. Epub 2010 Jul 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIH), Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20616231" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Vaccines ; Amino Acid Sequence ; Antibodies, Neutralizing/*chemistry/*immunology ; Antibody Affinity ; Antigenic Variation ; Antigens, CD4/chemistry/immunology/metabolism ; Base Sequence ; Binding Sites, Antibody ; Crystallography, X-Ray ; Epitopes/immunology ; HIV Antibodies/*chemistry/*immunology ; HIV Envelope Protein gp120/chemistry/genetics/*immunology ; HIV-1/*immunology ; Humans ; Immunoglobulin Fab Fragments/chemistry/immunology/metabolism ; Models, Molecular ; Molecular Mimicry ; Molecular Sequence Data ; Neutralization Tests ; Protein Conformation ; Protein Structure, Tertiary
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Doc2b is a high-affinity Ca2+ sensor for spontaneous neurotransmitter release (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-02-13
    Description: Synaptic vesicle fusion in brain synapses occurs in phases that are either tightly coupled to action potentials (synchronous), immediately following action potentials (asynchronous), or as stochastic events in the absence of action potentials (spontaneous). Synaptotagmin-1, -2, and -9 are vesicle-associated Ca2+ sensors for synchronous release. Here we found that double C2 domain (Doc2) proteins act as Ca2+ sensors to trigger spontaneous release. Although Doc2 proteins are cytosolic, they function analogously to synaptotagmin-1 but with a higher Ca2+ sensitivity. Doc2 proteins bound to N-ethylmaleimide-sensitive factor attachment receptor (SNARE) complexes in competition with synaptotagmin-1. Thus, different classes of multiple C2 domain-containing molecules trigger synchronous versus spontaneous fusion, which suggests a general mechanism for synaptic vesicle fusion triggered by the combined actions of SNAREs and multiple C2 domain-containing proteins.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2846320/" 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/PMC2846320/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Groffen, Alexander J -- Martens, Sascha -- Diez Arazola, Rocio -- Cornelisse, L Niels -- Lozovaya, Natalia -- de Jong, Arthur P H -- Goriounova, Natalia A -- Habets, Ron L P -- Takai, Yoshimi -- Borst, J Gerard -- Brose, Nils -- McMahon, Harvey T -- Verhage, Matthijs -- MC_U105178795/Medical Research Council/United Kingdom -- U.1051.02.007(78795)/Medical Research Council/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2010 Mar 26;327(5973):1614-8. doi: 10.1126/science.1183765. Epub 2010 Feb 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Functional Genomics, CNCR, Neuroscience Campus Amsterdam, VU University and VU Medical Center, Amsterdam, 1081 HV, Netherlands. sander.groffen@cncr.vu.nl〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20150444" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Binding Sites ; Calcium/*metabolism ; Calcium-Binding Proteins/chemistry/genetics/*metabolism ; Cells, Cultured ; Excitatory Postsynaptic Potentials ; Hippocampus/cytology ; Inhibitory Postsynaptic Potentials ; Membrane Fusion ; Mice ; Mice, Knockout ; Mutant Proteins/genetics/metabolism ; Nerve Tissue Proteins/chemistry/genetics/*metabolism ; Neurons/physiology ; Neurotransmitter Agents/*metabolism ; Patch-Clamp Techniques ; Protein Structure, Tertiary ; Purkinje Cells/physiology ; Rats ; SNARE Proteins/metabolism ; *Synaptic Transmission ; Synaptic Vesicles/*physiology ; Synaptotagmin I/metabolism
    Print ISSN: 0036-8075
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  • 5
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    Kinetic scaffolding mediated by a phospholipase C-beta and Gq signaling complex (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-10-23
    Description: Transmembrane signals initiated by a broad range of extracellular stimuli converge on nodes that regulate phospholipase C (PLC)-dependent inositol lipid hydrolysis for signal propagation. We describe how heterotrimeric guanine nucleotide-binding proteins (G proteins) activate PLC-betas and in turn are deactivated by these downstream effectors. The 2.7-angstrom structure of PLC-beta3 bound to activated Galpha(q) reveals a conserved module found within PLC-betas and other effectors optimized for rapid engagement of activated G proteins. The active site of PLC-beta3 in the complex is occluded by an intramolecular plug that is likely removed upon G protein-dependent anchoring and orientation of the lipase at membrane surfaces. A second domain of PLC-beta3 subsequently accelerates guanosine triphosphate hydrolysis by Galpha(q), causing the complex to dissociate and terminate signal propagation. Mutations within this domain dramatically delay signal termination in vitro and in vivo. Consequently, this work suggests a dynamic catch-and-release mechanism used to sharpen spatiotemporal signals mediated by diverse sensory inputs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3046049/" 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/PMC3046049/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Waldo, Gary L -- Ricks, Tiffany K -- Hicks, Stephanie N -- Cheever, Matthew L -- Kawano, Takeharu -- Tsuboi, Kazuhito -- Wang, Xiaoyue -- Montell, Craig -- Kozasa, Tohru -- Sondek, John -- Harden, T Kendall -- EY010852/EY/NEI NIH HHS/ -- GM074001/GM/NIGMS NIH HHS/ -- GM38213/GM/NIGMS NIH HHS/ -- GM57391/GM/NIGMS NIH HHS/ -- GM61454/GM/NIGMS NIH HHS/ -- R01 GM057391/GM/NIGMS NIH HHS/ -- R01 GM057391-13/GM/NIGMS NIH HHS/ -- R01 GM062299/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2010 Nov 12;330(6006):974-80. doi: 10.1126/science.1193438. Epub 2010 Oct 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20966218" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Catalytic Domain ; Crystallography, X-Ray ; Enzyme Activation ; GTP-Binding Protein alpha Subunits, Gq-G11/*chemistry/*metabolism ; Guanosine Triphosphate/metabolism ; Humans ; Hydrogen Bonding ; Hydrolysis ; Isoenzymes/chemistry/metabolism ; Kinetics ; Mice ; Models, Molecular ; Molecular Sequence Data ; Mutagenesis ; Phospholipase C beta/*chemistry/metabolism ; Protein Binding ; Protein Structure, Tertiary ; Recombinant Fusion Proteins/chemistry/metabolism ; Signal Transduction
    Print ISSN: 0036-8075
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  • 6
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    Peptidomimetic antibiotics target outer-membrane biogenesis in Pseudomonas aeruginosa (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-02-20
    Description: Antibiotics with new mechanisms of action are urgently required to combat the growing health threat posed by resistant pathogenic microorganisms. We synthesized a family of peptidomimetic antibiotics based on the antimicrobial peptide protegrin I. Several rounds of optimization gave a lead compound that was active in the nanomolar range against Gram-negative Pseudomonas spp., but was largely inactive against other Gram-negative and Gram-positive bacteria. Biochemical and genetic studies showed that the peptidomimetics had a non-membrane-lytic mechanism of action and identified a homolog of the beta-barrel protein LptD (Imp/OstA), which functions in outer-membrane biogenesis, as a cellular target. The peptidomimetic showed potent antimicrobial activity in a mouse septicemia infection model. Drug-resistant strains of Pseudomonas are a serious health problem, so this family of antibiotics may have important therapeutic applications.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Srinivas, Nityakalyani -- Jetter, Peter -- Ueberbacher, Bernhard J -- Werneburg, Martina -- Zerbe, Katja -- Steinmann, Jessica -- Van der Meijden, Benjamin -- Bernardini, Francesca -- Lederer, Alexander -- Dias, Ricardo L A -- Misson, Pauline E -- Henze, Heiko -- Zumbrunn, Jurg -- Gombert, Frank O -- Obrecht, Daniel -- Hunziker, Peter -- Schauer, Stefan -- Ziegler, Urs -- Kach, Andres -- Eberl, Leo -- Riedel, Kathrin -- DeMarco, Steven J -- Robinson, John A -- New York, N.Y. -- Science. 2010 Feb 19;327(5968):1010-3. doi: 10.1126/science.1182749.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Chemistry Department, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20167788" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anti-Bacterial Agents/chemical synthesis/metabolism/*pharmacology ; Antimicrobial Cationic Peptides/chemistry ; Bacterial Outer Membrane Proteins/chemistry/genetics/*metabolism ; Cell Membrane/*metabolism ; Drug Design ; Drug Resistance, Bacterial/genetics ; Genes, Bacterial ; Lipopolysaccharides/metabolism ; Mice ; Microbial Sensitivity Tests ; Molecular Mimicry ; Mutation ; Peptide Library ; Peptides/chemical synthesis/chemistry/metabolism/*pharmacology ; Protein Structure, Tertiary ; Pseudomonas Infections/drug therapy/microbiology ; Pseudomonas aeruginosa/*drug effects/growth & ; development/*metabolism/ultrastructure ; Sepsis/drug therapy/microbiology
    Print ISSN: 0036-8075
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  • 7
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    Crystal structure of human adenovirus at 3.5 A resolution (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-08-28
    Description: Rational development of adenovirus vectors for therapeutic gene transfer is hampered by the lack of accurate structural information. Here, we report the x-ray structure at 3.5 angstrom resolution of the 150-megadalton adenovirus capsid containing nearly 1 million amino acids. We describe interactions between the major capsid protein (hexon) and several accessory molecules that stabilize the capsid. The virus structure also reveals an altered association between the penton base and the trimeric fiber protein, perhaps reflecting an early event in cell entry. The high-resolution structure provides a substantial advance toward understanding the assembly and cell entry mechanisms of a large double-stranded DNA virus and provides new opportunities for improving adenovirus-mediated gene transfer.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2929978/" 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/PMC2929978/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reddy, Vijay S -- Natchiar, S Kundhavai -- Stewart, Phoebe L -- Nemerow, Glen R -- AI042929/AI/NIAID NIH HHS/ -- EY011431/EY/NEI NIH HHS/ -- HL054352/HL/NHLBI NIH HHS/ -- R01 AI070771/AI/NIAID NIH HHS/ -- R01 AI070771-03/AI/NIAID NIH HHS/ -- R01 EY011431/EY/NEI NIH HHS/ -- R01 EY011431-13/EY/NEI NIH HHS/ -- R01 HL054352/HL/NHLBI NIH HHS/ -- R01 HL054352-17/HL/NHLBI NIH HHS/ -- R29 AI042929/AI/NIAID NIH HHS/ -- R29 AI042929-06/AI/NIAID NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2010 Aug 27;329(5995):1071-5. doi: 10.1126/science.1187292.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA. reddyv@scripps.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20798318" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviruses, Human/*chemistry/physiology/*ultrastructure ; Capsid/*chemistry/*ultrastructure ; Capsid Proteins/*chemistry/ultrastructure ; Crystallography, X-Ray ; Genetic Vectors ; Hydrogen Bonding ; Models, Molecular ; Protein Conformation ; Protein Interaction Domains and Motifs ; Protein Multimerization ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Protein Subunits/chemistry ; Virus Internalization
    Print ISSN: 0036-8075
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  • 8
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    Shaping development of autophagy inhibitors with the structure of the lipid kinase Vps34 (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-03-27
    Description: Phosphoinositide 3-kinases (PI3Ks) are lipid kinases with diverse roles in health and disease. The primordial PI3K, Vps34, is present in all eukaryotes and has essential roles in autophagy, membrane trafficking, and cell signaling. We solved the crystal structure of Vps34 at 2.9 angstrom resolution, which revealed a constricted adenine-binding pocket, suggesting the reason that specific inhibitors of this class of PI3K have proven elusive. Both the phosphoinositide-binding loop and the carboxyl-terminal helix of Vps34 mediate catalysis on membranes and suppress futile adenosine triphosphatase cycles. Vps34 appears to alternate between a closed cytosolic form and an open form on the membrane. Structures of Vps34 complexes with a series of inhibitors reveal the reason that an autophagy inhibitor preferentially inhibits Vps34 and underpin the development of new potent and specific Vps34 inhibitors.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2860105/" 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/PMC2860105/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Simon -- Tavshanjian, Brandon -- Oleksy, Arkadiusz -- Perisic, Olga -- Houseman, Benjamin T -- Shokat, Kevan M -- Williams, Roger L -- MC_U105184308/Medical Research Council/United Kingdom -- U.1051.03.014(78824)/Medical Research Council/United Kingdom -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Mar 26;327(5973):1638-42. doi: 10.1126/science.1184429.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council 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/20339072" target="_blank"〉PubMed〈/a〉
    Keywords: Adenine/*analogs & derivatives/metabolism/pharmacology ; Adenosine Triphosphatases/metabolism ; Animals ; Autophagy/*drug effects ; Binding Sites ; Catalysis ; Catalytic Domain ; Cell Membrane/metabolism ; Crystallography, X-Ray ; Drosophila Proteins/*antagonists & inhibitors/*chemistry/genetics/metabolism ; Drosophila melanogaster ; Enzyme Inhibitors/chemical synthesis/chemistry/*metabolism/pharmacology ; Furans/chemistry/metabolism/pharmacology ; Humans ; Hydrophobic and Hydrophilic Interactions ; Models, Molecular ; Phosphatidylinositol 3-Kinases/*antagonists & ; inhibitors/*chemistry/genetics/metabolism ; Phosphatidylinositols/metabolism ; Point Mutation ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Pyridines/chemistry/metabolism/pharmacology ; Pyrimidines/chemistry/metabolism/pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 9
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    Structure of a eukaryotic CLC transporter defines an intermediate state in the transport cycle (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-10-12
    Description: CLC proteins transport chloride (Cl(-)) ions across cell membranes to control the electrical potential of muscle cells, transfer electrolytes across epithelia, and control the pH and electrolyte composition of intracellular organelles. Some members of this protein family are Cl(-) ion channels, whereas others are secondary active transporters that exchange Cl(-) ions and protons (H(+)) with a 2:1 stoichiometry. We have determined the structure of a eukaryotic CLC transporter at 3.5 angstrom resolution. Cytoplasmic cystathionine beta-synthase (CBS) domains are strategically positioned to regulate the ion-transport pathway, and many disease-causing mutations in human CLCs reside on the CBS-transmembrane interface. Comparison with prokaryotic CLC shows that a gating glutamate residue changes conformation and suggests a basis for 2:1 Cl(-)/H(+) exchange and a simple mechanistic connection between CLC channels and transporters.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3079386/" 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/PMC3079386/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Feng, Liang -- Campbell, Ernest B -- Hsiung, Yichun -- MacKinnon, Roderick -- P30 EB009998/EB/NIBIB NIH HHS/ -- R01 GM043949/GM/NIGMS NIH HHS/ -- R01 GM043949-20/GM/NIGMS NIH HHS/ -- R01 GM043949-21/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Oct 29;330(6004):635-41. doi: 10.1126/science.1195230. Epub 2010 Sep 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Neurobiology and Biophysics, Rockefeller University, Howard Hughes Medical Institute, 1230 York Avenue, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20929736" target="_blank"〉PubMed〈/a〉
    Keywords: Algal Proteins/chemistry/metabolism ; Animals ; Antiporters/*chemistry/metabolism ; Binding Sites ; Cell Line ; Cell Membrane/chemistry ; Chloride Channels/*chemistry/metabolism ; Chlorides/*metabolism ; Crystallization ; Crystallography, X-Ray ; Cystathionine beta-Synthase/chemistry ; Cytoplasm/chemistry ; Glutamic Acid/metabolism ; Ion Channel Gating ; Ion Transport ; Models, Biological ; Models, Molecular ; Protein Conformation ; Protein Multimerization ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Protein Subunits/chemistry ; Protons ; Rhodophyta/*chemistry/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 10
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    Structural insights into the assembly and function of the SAGA deubiquitinating module (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-04-17
    Description: SAGA is a transcriptional coactivator complex that is conserved across eukaryotes and performs multiple functions during transcriptional activation and elongation. One role is deubiquitination of histone H2B, and this activity resides in a distinct subcomplex called the deubiquitinating module (DUBm), which contains the ubiquitin-specific protease Ubp8, bound to Sgf11, Sus1, and Sgf73. The deubiquitinating activity depends on the presence of all four DUBm proteins. We report here the 1.90 angstrom resolution crystal structure of the DUBm bound to ubiquitin aldehyde, as well as the 2.45 angstrom resolution structure of the uncomplexed DUBm. The structure reveals an arrangement of protein domains that gives rise to a highly interconnected complex, which is stabilized by eight structural zinc atoms that are critical for enzymatic activity. The structure suggests a model for how interactions with the other DUBm proteins activate Ubp8 and allows us to speculate about how the DUBm binds to monoubiquitinated histone H2B in nucleosomes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4220450/" 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/PMC4220450/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Samara, Nadine L -- Datta, Ajit B -- Berndsen, Christopher E -- Zhang, Xiangbin -- Yao, Tingting -- Cohen, Robert E -- Wolberger, Cynthia -- F32GM089037/GM/NIGMS NIH HHS/ -- R01 GM095822/GM/NIGMS 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. 2010 May 21;328(5981):1025-9. doi: 10.1126/science.1190049. Epub 2010 Apr 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biophysics and Biophysical Chemistry, 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/20395473" target="_blank"〉PubMed〈/a〉
    Keywords: Aldehydes/chemistry/metabolism ; Crystallography, X-Ray ; Endopeptidases/*chemistry/metabolism ; Histone Acetyltransferases/*chemistry/metabolism ; Histones/metabolism ; Models, Biological ; Models, Molecular ; Nuclear Proteins/*chemistry/metabolism ; Nucleosomes/chemistry/metabolism ; Protein Binding ; Protein Conformation ; Protein Structure, Tertiary ; RNA-Binding Proteins/*chemistry/metabolism ; Saccharomyces cerevisiae Proteins/*chemistry/metabolism ; Trans-Activators/*chemistry/metabolism ; Transcription Factors/*chemistry/metabolism ; Ubiquitin/chemistry/*metabolism ; Ubiquitinated Proteins/metabolism ; Ubiquitination ; Ubiquitins/chemistry/metabolism ; Zinc/chemistry/metabolism ; Zinc Fingers
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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