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  • 1
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    Closing of the nucleotide pocket of kinesin-family motors upon binding to microtubules (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-06
    Description: We have used adenosine diphosphate analogs containing electron paramagnetic resonance (EPR) spin moieties and EPR spectroscopy to show that the nucleotide-binding site of kinesin-family motors closes when the motor.diphosphate complex binds to microtubules. Structural analyses demonstrate that a domain movement in the switch 1 region at the nucleotide site, homologous to domain movements in the switch 1 region in the G proteins [heterotrimeric guanine nucleotide-binding proteins], explains the EPR data. The switch movement primes the motor both for the free energy-yielding nucleotide hydrolysis reaction and for subsequent conformational changes that are crucial for the generation of force and directed motion along the microtubule.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Naber, Nariman -- Minehardt, Todd J -- Rice, Sarah -- Chen, Xiaoru -- Grammer, Jean -- Matuska, Marija -- Vale, Ronald D -- Kollman, Peter A -- Car, Roberto -- Yount, Ralph G -- Cooke, Roger -- Pate, Edward -- AR39643/AR/NIAMS NIH HHS/ -- AR42895/AR/NIAMS NIH HHS/ -- DK05915/DK/NIDDK NIH HHS/ -- GM29072/GM/NIGMS NIH HHS/ -- RR1081/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2003 May 2;300(5620):798-801.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of California, San Francisco, CA 94143, USA. naber@itsa.ucsf.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12730601" target="_blank"〉PubMed〈/a〉
    Keywords: Adenine Nucleotides/*metabolism ; Adenosine Diphosphate/analogs & derivatives/metabolism ; Adenosine Triphosphate/analogs & derivatives/metabolism ; Animals ; Binding Sites ; Computer Simulation ; Crystallography, X-Ray ; *Drosophila Proteins ; Drosophila melanogaster ; Electron Spin Resonance Spectroscopy ; Humans ; Hydrogen Bonding ; Hydrolysis ; Kinesin/*chemistry/*metabolism ; Microtubules/*metabolism ; Models, Molecular ; Molecular Motor Proteins/*chemistry/*metabolism ; Molecular Probes/metabolism ; Protein Conformation ; Spin Labels
    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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    Proteasome subunit Rpn13 is a novel ubiquitin receptor (2008)
    Nature Publishing Group (NPG)
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    Publication Date: 2008-05-24
    Description: Proteasomal receptors that recognize ubiquitin chains attached to substrates are key mediators of selective protein degradation in eukaryotes. Here we report the identification of a new ubiquitin receptor, Rpn13/ARM1, a known component of the proteasome. Rpn13 binds ubiquitin through a conserved amino-terminal region termed the pleckstrin-like receptor for ubiquitin (Pru) domain, which binds K48-linked diubiquitin with an affinity of approximately 90 nM. Like proteasomal ubiquitin receptor Rpn10/S5a, Rpn13 also binds ubiquitin-like (UBL) domains of UBL-ubiquitin-associated (UBA) proteins. In yeast, a synthetic phenotype results when specific mutations of the ubiquitin binding sites of Rpn10 and Rpn13 are combined, indicating functional linkage between these ubiquitin receptors. Because Rpn13 is also the proteasomal receptor for Uch37, a deubiquitinating enzyme, our findings suggest a coupling of chain recognition and disassembly at the proteasome.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2839886/" 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/PMC2839886/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Husnjak, Koraljka -- Elsasser, Suzanne -- Zhang, Naixia -- Chen, Xiang -- Randles, Leah -- Shi, Yuan -- Hofmann, Kay -- Walters, Kylie J -- Finley, Daniel -- Dikic, Ivan -- CA097004/CA/NCI NIH HHS/ -- GM008700/GM/NIGMS NIH HHS/ -- GM043601/GM/NIGMS NIH HHS/ -- R01 CA097004/CA/NCI NIH HHS/ -- R01 CA097004-05/CA/NCI NIH HHS/ -- R01 CA097004-06A1/CA/NCI NIH HHS/ -- R37 GM043601/GM/NIGMS NIH HHS/ -- R37 GM043601-17/GM/NIGMS NIH HHS/ -- T32 GM008700/GM/NIGMS NIH HHS/ -- T32 GM008700-09/GM/NIGMS NIH HHS/ -- England -- Nature. 2008 May 22;453(7194):481-8. doi: 10.1038/nature06926.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Biochemistry II and Cluster of Excellence Macromolecular Complexes, Goethe University, Theodor-Stern-Kai 7, D-60590 Frankfurt (Main), Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18497817" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding Sites/genetics ; Cell Adhesion Molecules/chemistry/genetics/metabolism ; Humans ; Membrane Glycoproteins/chemistry/genetics/metabolism ; Mice ; Molecular Sequence Data ; Mutation/genetics ; Phenotype ; Proteasome Endopeptidase Complex/*chemistry/genetics/*metabolism ; Protein Subunits/chemistry/genetics/metabolism ; Saccharomyces cerevisiae Proteins/chemistry/genetics/metabolism ; Ubiquitin/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 3
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    Incorporation of a non-human glycan mediates human susceptibility to a bacterial toxin (2008)
    Nature Publishing Group (NPG)
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    Publication Date: 2008-10-31
    Description: AB(5) toxins comprise an A subunit that corrupts essential eukaryotic cell functions, and pentameric B subunits that direct target-cell uptake after binding surface glycans. Subtilase cytotoxin (SubAB) is an AB(5) toxin secreted by Shiga toxigenic Escherichia coli (STEC), which causes serious gastrointestinal disease in humans. SubAB causes haemolytic uraemic syndrome-like pathology in mice through SubA-mediated cleavage of BiP/GRP78, an essential endoplasmic reticulum chaperone. Here we show that SubB has a strong preference for glycans terminating in the sialic acid N-glycolylneuraminic acid (Neu5Gc), a monosaccharide not synthesized in humans. Structures of SubB-Neu5Gc complexes revealed the basis for this specificity, and mutagenesis of key SubB residues abrogated in vitro glycan recognition, cell binding and cytotoxicity. SubAB specificity for Neu5Gc was confirmed using mouse tissues with a human-like deficiency of Neu5Gc and human cell lines fed with Neu5Gc. Despite lack of Neu5Gc biosynthesis in humans, assimilation of dietary Neu5Gc creates high-affinity receptors on human gut epithelia and kidney vasculature. This, and the lack of Neu5Gc-containing body fluid competitors in humans, confers susceptibility to the gastrointestinal and systemic toxicities of SubAB. Ironically, foods rich in Neu5Gc are the most common source of STEC contamination. Thus a bacterial toxin's receptor is generated by metabolic incorporation of an exogenous factor derived from food.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2723748/" 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/PMC2723748/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Byres, Emma -- Paton, Adrienne W -- Paton, James C -- Lofling, Jonas C -- Smith, David F -- Wilce, Matthew C J -- Talbot, Ursula M -- Chong, Damien C -- Yu, Hai -- Huang, Shengshu -- Chen, Xi -- Varki, Nissi M -- Varki, Ajit -- Rossjohn, Jamie -- Beddoe, Travis -- R01 AI068715-01A1/AI/NIAID NIH HHS/ -- R01 AI068715-02/AI/NIAID NIH HHS/ -- England -- Nature. 2008 Dec 4;456(7222):648-52. doi: 10.1038/nature07428. Epub 2008 Oct 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Protein Crystallography Unit and ARC Centre of Excellence for Structural and Functional Microbial Genomics, Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18971931" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacterial Toxins/chemistry/genetics/*metabolism/*toxicity ; Cell Death/drug effects ; Cell Line ; Crystallography, X-Ray ; Escherichia coli Proteins/*chemistry/genetics/metabolism/*toxicity ; Humans ; Mice ; Microscopy, Fluorescence ; Models, Molecular ; Neuraminic Acids/administration & dosage/*metabolism/pharmacology ; Polysaccharides/*chemistry/*metabolism ; Protein Binding ; Protein Subunits ; Shiga-Toxigenic Escherichia coli/chemistry/pathogenicity ; Sialic Acids/chemistry/metabolism ; Species Specificity ; Substrate Specificity ; Subtilisins/*chemistry/genetics/metabolism/*toxicity ; Survival Analysis
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 4
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    Ubiquitin docking at the proteasome through a novel pleckstrin-homology domain interaction (2008)
    Nature Publishing Group (NPG)
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    Publication Date: 2008-05-24
    Description: Targeted protein degradation is largely performed by the ubiquitin-proteasome pathway, in which substrate proteins are marked by covalently attached ubiquitin chains that mediate recognition by the proteasome. It is currently unclear how the proteasome recognizes its substrates, as the only established ubiquitin receptor intrinsic to the proteasome is Rpn10/S5a (ref. 1), which is not essential for ubiquitin-mediated protein degradation in budding yeast. In the accompanying manuscript we report that Rpn13 (refs 3-7), a component of the nine-subunit proteasome base, functions as a ubiquitin receptor, complementing its known role in docking de-ubiquitinating enzyme Uch37/UCHL5 (refs 4-6) to the proteasome. Here we merge crystallography and NMR data to describe the ubiquitin-binding mechanism of Rpn13. We determine the structure of Rpn13 alone and complexed with ubiquitin. The co-complex reveals a novel ubiquitin-binding mode in which loops rather than secondary structural elements are used to capture ubiquitin. Further support for the role of Rpn13 as a proteasomal ubiquitin receptor is demonstrated by its ability to bind ubiquitin and proteasome subunit Rpn2/S1 simultaneously. Finally, we provide a model structure of Rpn13 complexed to diubiquitin, which provides insights into how Rpn13 as a ubiquitin receptor is coupled to substrate deubiquitination by Uch37.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2825158/" 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/PMC2825158/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schreiner, Patrick -- Chen, Xiang -- Husnjak, Koraljka -- Randles, Leah -- Zhang, Naixia -- Elsasser, Suzanne -- Finley, Daniel -- Dikic, Ivan -- Walters, Kylie J -- Groll, Michael -- CA097004/CA/NCI NIH HHS/ -- GM008700/GM/NIGMS NIH HHS/ -- GM43601/GM/NIGMS NIH HHS/ -- R01 CA097004/CA/NCI NIH HHS/ -- R01 CA097004-05/CA/NCI NIH HHS/ -- R01 CA097004-06A1/CA/NCI NIH HHS/ -- R37 GM043601/GM/NIGMS NIH HHS/ -- R37 GM043601-17/GM/NIGMS NIH HHS/ -- T32 GM008700/GM/NIGMS NIH HHS/ -- T32 GM008700-09/GM/NIGMS NIH HHS/ -- England -- Nature. 2008 May 22;453(7194):548-52. doi: 10.1038/nature06924.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Integrated Protein Science at the Department Chemie, Lehrstuhl fur Biochemie, Technische Universitat Munchen, Lichtenbergstrasse 4, D-85747 Garching, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18497827" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Animals ; Cell Adhesion Molecules/*chemistry/genetics/*metabolism ; Crystallography, X-Ray ; Humans ; Membrane Glycoproteins/chemistry/genetics/metabolism ; Mice ; Models, Molecular ; Nuclear Magnetic Resonance, Biomolecular ; Proteasome Endopeptidase Complex/*chemistry/*metabolism ; Protein Binding ; Protein Structure, Tertiary ; Protein Subunits/chemistry/genetics/metabolism ; Ubiquitin/chemistry/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 5
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    Direct activation of protein kinases by unanchored polyubiquitin chains (2009)
    Nature Publishing Group (NPG)
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    Publication Date: 2009-08-14
    Description: TRAF6 is a ubiquitin ligase that is essential for the activation of NF-kappaB and MAP kinases in several signalling pathways, including those emanating from the interleukin 1 and Toll-like receptors. TRAF6 functions together with a ubiquitin-conjugating enzyme complex consisting of UBC13 (also known as UBE2N) and UEV1A (UBE2V1) to catalyse Lys 63-linked polyubiquitination, which activates the TAK1 (also known as MAP3K7) kinase complex. TAK1 in turn phosphorylates and activates IkappaB kinase (IKK), leading to the activation of NF-kappaB. Although several proteins are known to be polyubiquitinated in the IL1R and Toll-like receptor pathways, it is not clear whether ubiquitination of any of these proteins is important for TAK1 or IKK activation. By reconstituting TAK1 activation in vitro using purified proteins, here we show that free Lys 63 polyubiquitin chains, which are not conjugated to any target protein, directly activate TAK1 by binding to the ubiquitin receptor TAB2 (also known as MAP3K7IP2). This binding leads to autophosphorylation and activation of TAK1. Furthermore, we found that unanchored polyubiquitin chains synthesized by TRAF6 and UBCH5C (also known as UBE2D3) activate the IKK complex. Disassembly of the polyubiquitin chains by deubiquitination enzymes prevented TAK1 and IKK activation. These results indicate that unanchored polyubiquitin chains directly activate TAK1 and IKK, suggesting a new mechanism of protein kinase regulation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2747300/" 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/PMC2747300/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xia, Zong-Ping -- Sun, Lijun -- Chen, Xiang -- Pineda, Gabriel -- Jiang, Xiaomo -- Adhikari, Anirban -- Zeng, Wenwen -- Chen, Zhijian J -- R01 AI060919/AI/NIAID NIH HHS/ -- R01 AI060919-05/AI/NIAID NIH HHS/ -- R01 GM063692/GM/NIGMS NIH HHS/ -- R01 GM063692-08/GM/NIGMS NIH HHS/ -- R01-AI09919/AI/NIAID NIH HHS/ -- R01-GM63692/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2009 Sep 3;461(7260):114-9. doi: 10.1038/nature08247. Epub 2009 Aug 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, University of Texas, Southwestern Medical Center, Dallas, Texas 75390-9148, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19675569" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/metabolism ; Cell Line ; DEAD-box RNA Helicases/metabolism ; Enzyme Activation/drug effects ; HeLa Cells ; Humans ; I-kappa B Kinase/*metabolism ; Interleukin-1beta/pharmacology ; Lysine/metabolism ; MAP Kinase Kinase Kinases/*metabolism ; Phosphorylation ; Polyubiquitin/biosynthesis/*metabolism ; TNF Receptor-Associated Factor 6/metabolism ; Tumor Suppressor Proteins/metabolism ; Ubiquitin-Conjugating Enzymes ; Ubiquitination
    Print ISSN: 0028-0836
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 6
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    Diversity and complexity in DNA recognition by transcription factors (2009)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2009-05-16
    Description: Sequence preferences of DNA binding proteins are a primary mechanism by which cells interpret the genome. Despite the central importance of these proteins in physiology, development, and evolution, comprehensive DNA binding specificities have been determined experimentally for only a few proteins. Here, we used microarrays containing all 10-base pair sequences to examine the binding specificities of 104 distinct mouse DNA binding proteins representing 22 structural classes. Our results reveal a complex landscape of binding, with virtually every protein analyzed possessing unique preferences. Roughly half of the proteins each recognized multiple distinctly different sequence motifs, challenging our molecular understanding of how proteins interact with their DNA binding sites. This complexity in DNA recognition may be important in gene regulation and in the evolution of transcriptional regulatory networks.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2905877/" 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/PMC2905877/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Badis, Gwenael -- Berger, Michael F -- Philippakis, Anthony A -- Talukder, Shaheynoor -- Gehrke, Andrew R -- Jaeger, Savina A -- Chan, Esther T -- Metzler, Genita -- Vedenko, Anastasia -- Chen, Xiaoyu -- Kuznetsov, Hanna -- Wang, Chi-Fong -- Coburn, David -- Newburger, Daniel E -- Morris, Quaid -- Hughes, Timothy R -- Bulyk, Martha L -- R01 HG003985/HG/NHGRI NIH HHS/ -- R01 HG003985-01/HG/NHGRI NIH HHS/ -- R01 HG003985-02/HG/NHGRI NIH HHS/ -- R01 HG003985-03/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2009 Jun 26;324(5935):1720-3. doi: 10.1126/science.1162327. Epub 2009 May 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Banting and Best Department of Medical Research, University of Toronto, Toronto, ON M5S 3E1, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19443739" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acid Sequence ; Animals ; Base Sequence ; Binding Sites ; DNA/chemistry/*metabolism ; Electrophoretic Mobility Shift Assay ; Gene Expression Regulation ; Gene Regulatory Networks ; Humans ; Mice ; Protein Array Analysis ; Protein Binding ; Protein Structure, Tertiary ; Recombinant Fusion Proteins/chemistry/metabolism ; Transcription Factors/*chemistry/*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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  • 7
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    Regulation of cellular metabolism by protein lysine acetylation (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-02-20
    Description: Protein lysine acetylation has emerged as a key posttranslational modification in cellular regulation, in particular through the modification of histones and nuclear transcription regulators. We show that lysine acetylation is a prevalent modification in enzymes that catalyze intermediate metabolism. Virtually every enzyme in glycolysis, gluconeogenesis, the tricarboxylic acid (TCA) cycle, the urea cycle, fatty acid metabolism, and glycogen metabolism was found to be acetylated in human liver tissue. The concentration of metabolic fuels, such as glucose, amino acids, and fatty acids, influenced the acetylation status of metabolic enzymes. Acetylation activated enoyl-coenzyme A hydratase/3-hydroxyacyl-coenzyme A dehydrogenase in fatty acid oxidation and malate dehydrogenase in the TCA cycle, inhibited argininosuccinate lyase in the urea cycle, and destabilized phosphoenolpyruvate carboxykinase in gluconeogenesis. Our study reveals that acetylation plays a major role in metabolic regulation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3232675/" 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/PMC3232675/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhao, Shimin -- Xu, Wei -- Jiang, Wenqing -- Yu, Wei -- Lin, Yan -- Zhang, Tengfei -- Yao, Jun -- Zhou, Li -- Zeng, Yaxue -- Li, Hong -- Li, Yixue -- Shi, Jiong -- An, Wenlin -- Hancock, Susan M -- He, Fuchu -- Qin, Lunxiu -- Chin, Jason -- Yang, Pengyuan -- Chen, Xian -- Lei, Qunying -- Xiong, Yue -- Guan, Kun-Liang -- MC_U105181009/Medical Research Council/United Kingdom -- MC_UP_A024_1008/Medical Research Council/United Kingdom -- R01 CA065572/CA/NCI NIH HHS/ -- R01 CA065572-13/CA/NCI NIH HHS/ -- R01 CA065572-14/CA/NCI NIH HHS/ -- R01 CA065572-15/CA/NCI NIH HHS/ -- R01CA108941/CA/NCI NIH HHS/ -- R01CA65572/CA/NCI NIH HHS/ -- R01GM51586/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2010 Feb 19;327(5968):1000-4. doi: 10.1126/science.1179689.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Life Sciences, Fudan University, Shanghai 20032, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20167786" target="_blank"〉PubMed〈/a〉
    Keywords: 3-Hydroxyacyl CoA Dehydrogenases/metabolism ; Acetylation ; Argininosuccinate Lyase/genetics/metabolism ; Cell Line ; Citric Acid Cycle ; Enoyl-CoA Hydratase/metabolism ; Enzymes/*metabolism ; Fatty Acids/metabolism ; Gluconeogenesis ; Glycogen/metabolism ; Glycolysis ; Hepatocytes/enzymology/*metabolism ; Humans ; Intracellular Signaling Peptides and Proteins/metabolism ; Isomerases/metabolism ; Liver/enzymology/*metabolism ; Lysine/*metabolism ; Malate Dehydrogenase/metabolism ; Multienzyme Complexes/metabolism ; Oxidation-Reduction ; Peroxisomal Bifunctional Enzyme ; Phosphoenolpyruvate Carboxykinase (GTP)/metabolism ; *Protein Processing, Post-Translational ; Proteins/*metabolism ; Proteome ; Urea/metabolism
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  • 8
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    Partitioning of histone H3-H4 tetramers during DNA replication-dependent chromatin assembly (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-04-03
    Description: Semiconservative DNA replication ensures the faithful duplication of genetic information during cell divisions. However, how epigenetic information carried by histone modifications propagates through mitotic divisions remains elusive. To address this question, the DNA replication-dependent nucleosome partition pattern must be clarified. Here, we report significant amounts of H3.3-H4 tetramers split in vivo, whereas most H3.1-H4 tetramers remained intact. Inhibiting DNA replication-dependent deposition greatly reduced the level of splitting events, which suggests that (i) the replication-independent H3.3 deposition pathway proceeds largely by cooperatively incorporating two new H3.3-H4 dimers and (ii) the majority of splitting events occurred during replication-dependent deposition. Our results support the idea that "silent" histone modifications within large heterochromatic regions are maintained by copying modifications from neighboring preexisting histones without the need for H3-H4 splitting events.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xu, Mo -- Long, Chengzu -- Chen, Xiuzhen -- Huang, Chang -- Chen, She -- Zhu, Bing -- New York, N.Y. -- Science. 2010 Apr 2;328(5974):94-8. doi: 10.1126/science.1178994.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Graduate Program, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, People's Republic of China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20360108" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Aphidicolin/pharmacology ; Cell Cycle ; Chromatin/metabolism ; *Chromatin Assembly and Disassembly ; *DNA Replication ; Epigenesis, Genetic ; HeLa Cells ; Heterochromatin/metabolism ; Histones/*chemistry/*metabolism ; Humans ; Hydroxyurea/pharmacology ; Mass Spectrometry ; Molecular Sequence Data ; Nucleosomes/*metabolism ; Protein Multimerization ; S Phase ; Transfection
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  • 9
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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)
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    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
    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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    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2013-07-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Xi -- Wang, Qiang -- New York, N.Y. -- Science. 2013 Jun 28;340(6140):1523-4. doi: 10.1126/science.340.6140.1523-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23812701" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; France ; Germany ; Humans ; Models, Educational ; Unemployment/*trends ; Vocational Education/economics/*trends ; Young Adult
    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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