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  • Amino Acid Sequence  (7)
  • 2010-2014  (4)
  • 2005-2009  (3)
  • 1980-1984
  • 1
    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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  • 2
    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
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
    Publication Date: 2009-02-21
    Description: Stripe rust is a devastating fungal disease that afflicts wheat in many regions of the world. New races of Puccinia striiformis, the pathogen responsible for this disease, have overcome most of the known race-specific resistance genes. We report the map-based cloning of the gene Yr36 (WKS1), which confers resistance to a broad spectrum of stripe rust races at relatively high temperatures (25 degrees to 35 degrees C). This gene includes a kinase and a putative START lipid-binding domain. Five independent mutations and transgenic complementation confirmed that both domains are necessary to confer resistance. Yr36 is present in wild wheat but is absent in modern pasta and bread wheat varieties, and therefore it can now be used to improve resistance to stripe rust in a broad set of varieties.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4737487/" 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/PMC4737487/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fu, Daolin -- Uauy, Cristobal -- Distelfeld, Assaf -- Blechl, Ann -- Epstein, Lynn -- Chen, Xianming -- Sela, Hanan -- Fahima, Tzion -- Dubcovsky, Jorge -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Mar 6;323(5919):1357-60. doi: 10.1126/science.1166289. Epub 2009 Feb 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Sciences, University of California, Davis, CA 95616, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19228999" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Basidiomycota/*pathogenicity ; Cloning, Molecular ; Crosses, Genetic ; Down-Regulation ; *Genes, Plant ; Hot Temperature ; Immunity, Innate ; Molecular Sequence Data ; Phosphotransferases/chemistry/*genetics/metabolism ; Physical Chromosome Mapping ; *Plant Diseases/immunology/microbiology ; Plant Proteins/chemistry/genetics/metabolism ; Plants, Genetically Modified ; Triticum/*genetics/*microbiology
    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
    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
    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
    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
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  • 6
    Publication Date: 2012-12-22
    Description: The presence of DNA in the cytoplasm of mammalian cells is a danger signal that triggers host immune responses such as the production of type I interferons. Cytosolic DNA induces interferons through the production of cyclic guanosine monophosphate-adenosine monophosphate (cyclic GMP-AMP, or cGAMP), which binds to and activates the adaptor protein STING. Through biochemical fractionation and quantitative mass spectrometry, we identified a cGAMP synthase (cGAS), which belongs to the nucleotidyltransferase family. Overexpression of cGAS activated the transcription factor IRF3 and induced interferon-beta in a STING-dependent manner. Knockdown of cGAS inhibited IRF3 activation and interferon-beta induction by DNA transfection or DNA virus infection. cGAS bound to DNA in the cytoplasm and catalyzed cGAMP synthesis. These results indicate that cGAS is a cytosolic DNA sensor that induces interferons by producing the second messenger cGAMP.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3863629/" 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/PMC3863629/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, Lijun -- Wu, Jiaxi -- Du, Fenghe -- Chen, Xiang -- Chen, Zhijian J -- AI-093967/AI/NIAID NIH HHS/ -- R01 AI093967/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Feb 15;339(6121):786-91. doi: 10.1126/science.1232458. Epub 2012 Dec 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23258413" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Amino Acid Sequence ; Animals ; Cell Line, Tumor ; Cyclic AMP/biosynthesis ; Cyclic GMP/biosynthesis ; Cytidine Triphosphate/metabolism ; Cytosol/enzymology/*immunology ; DNA/*immunology/metabolism ; Gene Knockdown Techniques ; HEK293 Cells ; Humans ; Interferon Type I/*biosynthesis ; Interferon-beta/*biosynthesis ; Metabolic Networks and Pathways ; Mice ; Molecular Sequence Data ; Nucleotidyltransferases/genetics/isolation & purification/*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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  • 7
    Publication Date: 2011-06-17
    Description: Transforming growth factor (TGF)-beta is stored in the extracellular matrix as a latent complex with its prodomain. Activation of TGF-beta1 requires the binding of alpha(v) integrin to an RGD sequence in the prodomain and exertion of force on this domain, which is held in the extracellular matrix by latent TGF-beta binding proteins. Crystals of dimeric porcine proTGF-beta1 reveal a ring-shaped complex, a novel fold for the prodomain, and show how the prodomain shields the growth factor from recognition by receptors and alters its conformation. Complex formation between alpha(v)beta(6) integrin and the prodomain is insufficient for TGF-beta1 release. Force-dependent activation requires unfastening of a 'straitjacket' that encircles each growth-factor monomer at a position that can be locked by a disulphide bond. Sequences of all 33 TGF-beta family members indicate a similar prodomain fold. The structure provides insights into the regulation of a family of growth and differentiation factors of fundamental importance in morphogenesis and homeostasis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4717672/" 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/PMC4717672/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shi, Minlong -- Zhu, Jianghai -- Wang, Rui -- Chen, Xing -- Mi, Lizhi -- Walz, Thomas -- Springer, Timothy A -- P01 HL103526/HL/NHLBI NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2011 Jun 15;474(7351):343-9. doi: 10.1038/nature10152.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Immune Disease Institute, Children's Hospital Boston and Department of Pathology, Harvard Medical School, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21677751" target="_blank"〉PubMed〈/a〉
    Keywords: Activins/metabolism ; Amino Acid Motifs ; Amino Acid Sequence ; Animals ; Antigens, Neoplasm/chemistry/metabolism ; Camurati-Engelmann Syndrome/genetics ; Cell Line ; Crystallography, X-Ray ; HEK293 Cells ; Humans ; Integrins/chemistry/metabolism ; Latent TGF-beta Binding Proteins/chemistry/metabolism ; Models, Molecular ; Molecular Sequence Data ; Multigene Family ; Mutation/genetics ; Oligopeptides/chemistry/metabolism ; Protein Structure, Tertiary ; Receptors, Transforming Growth Factor beta/chemistry/metabolism ; Swine ; Transforming Growth Factor beta1/biosynthesis/*chemistry/genetics/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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