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  • Articles  (22)
  • Humans  (21)
  • Sequence Analysis, DNA  (4)
  • 2010-2014  (22)
  • 1980-1984
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  • Articles  (22)
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  • 1
    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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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    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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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
    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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  • 4
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    American Association for the Advancement of Science (AAAS)
    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
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
    Publication Date: 2013-05-25
    Description: The emergence of the H7N9 influenza virus in humans in Eastern China has raised concerns that a new influenza pandemic could occur. Here, we used a ferret model to evaluate the infectivity and transmissibility of A/Shanghai/2/2013 (SH2), a human H7N9 virus isolate. This virus replicated in the upper and lower respiratory tracts of the ferrets and was shed at high titers for 6 to 7 days, with ferrets showing relatively mild clinical signs. SH2 was efficiently transmitted between ferrets via direct contact, but less efficiently by airborne exposure. Pigs were productively infected by SH2 and shed virus for 6 days but were unable to transmit the virus to naive pigs or ferrets. Under appropriate conditions, human-to-human transmission of the H7N9 virus may be possible.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhu, H -- Wang, D -- Kelvin, D J -- Li, L -- Zheng, Z -- Yoon, S-W -- Wong, S-S -- Farooqui, A -- Wang, J -- Banner, D -- Chen, R -- Zheng, R -- Zhou, J -- Zhang, Y -- Hong, W -- Dong, W -- Cai, Q -- Roehrl, M H A -- Huang, S S H -- Kelvin, A A -- Yao, T -- Zhou, B -- Chen, X -- Leung, G M -- Poon, L L M -- Webster, R G -- Webby, R J -- Peiris, J S M -- Guan, Y -- Shu, Y -- HSN266200700005C/PHS HHS/ -- New York, N.Y. -- Science. 2013 Jul 12;341(6142):183-6. doi: 10.1126/science.1239844. Epub 2013 May 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Joint Influenza Research Centre [Shantou University Medical College/University of Hong Kong], Shantou University, Shantou, PR China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23704376" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Communicable Diseases, Emerging/*transmission/*virology ; Disease Models, Animal ; Ferrets ; Humans ; Influenza, Human/pathology/*transmission/*virology ; Orthomyxoviridae/classification/genetics/*pathogenicity ; Respiratory System/pathology/virology ; Sus scrofa
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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
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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
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  • 8
    Publication Date: 2012-06-05
    Description: How environmental cues regulate adult stem cell and cancer cell activity through surface receptors is poorly understood. Angiopoietin-like proteins (ANGPTLs), a family of seven secreted glycoproteins, are known to support the activity of haematopoietic stem cells (HSCs) in vitro and in vivo. ANGPTLs also have important roles in lipid metabolism, angiogenesis and inflammation, but were considered 'orphan ligands' because no receptors were identified. Here we show that the immune-inhibitory receptor human leukocyte immunoglobulin-like receptor B2 (LILRB2) and its mouse orthologue paired immunoglobulin-like receptor (PIRB) are receptors for several ANGPTLs. LILRB2 and PIRB are expressed on human and mouse HSCs, respectively, and the binding of ANGPTLs to these receptors supported ex vivo expansion of HSCs. In mouse transplantation acute myeloid leukaemia models, a deficiency in intracellular signalling of PIRB resulted in increased differentiation of leukaemia cells, revealing that PIRB supports leukaemia development. Our study indicates an unexpected functional significance of classical immune-inhibitory receptors in maintenance of stemness of normal adult stem cells and in support of cancer development.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3367397/" 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/PMC3367397/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zheng, Junke -- Umikawa, Masato -- Cui, Changhao -- Li, Jiyuan -- Chen, Xiaoli -- Zhang, Chaozheng -- Huynh, HoangDinh -- Kang, Xunlei -- Silvany, Robert -- Wan, Xuan -- Ye, Jingxiao -- Canto, Alberto Puig -- Chen, Shu-Hsia -- Wang, Huan-You -- Ward, E Sally -- Zhang, Cheng Cheng -- K01 CA 120099/CA/NCI NIH HHS/ -- K01 CA120099/CA/NCI NIH HHS/ -- K01 CA120099-03/CA/NCI NIH HHS/ -- K01 CA120099-04/CA/NCI NIH HHS/ -- K01 CA120099-05/CA/NCI NIH HHS/ -- K01 CA120099-06/CA/NCI NIH HHS/ -- R01 CA109322/CA/NCI NIH HHS/ -- R01 CA172268/CA/NCI NIH HHS/ -- England -- Nature. 2012 May 30;485(7400):656-60. doi: 10.1038/nature11095.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Physiology and Developmental Biology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22660330" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; Cell Division ; Cells, Cultured ; Disease Models, Animal ; Fetal Blood/cytology/metabolism ; HEK293 Cells ; Hematopoietic Stem Cells/*cytology/*metabolism ; Humans ; Leukemia/*metabolism/*pathology ; Membrane Glycoproteins/genetics/*metabolism ; Mice ; Myeloid-Lymphoid Leukemia Protein ; Receptors, Immunologic/genetics/*metabolism
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  • 9
    Publication Date: 2012-09-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Qiang -- Chen, Xi -- Xu, Yi-Chong -- England -- Nature. 2012 Sep 27;489(7417):502. doi: 10.1038/489502c.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23018953" target="_blank"〉PubMed〈/a〉
    Keywords: *Conservation of Natural Resources ; *Federal Government ; Humans ; *Public Opinion
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  • 10
    Publication Date: 2013-08-24
    Description: A novel H7N9 influenza A virus first detected in March 2013 has since caused more than 130 human infections in China, resulting in 40 deaths. Preliminary analyses suggest that the virus is a reassortant of H7, N9 and H9N2 avian influenza viruses, and carries some amino acids associated with mammalian receptor binding, raising concerns of a new pandemic. However, neither the source populations of the H7N9 outbreak lineage nor the conditions for its genesis are fully known. Using a combination of active surveillance, screening of virus archives, and evolutionary analyses, here we show that H7 viruses probably transferred from domestic duck to chicken populations in China on at least two independent occasions. We show that the H7 viruses subsequently reassorted with enzootic H9N2 viruses to generate the H7N9 outbreak lineage, and a related previously unrecognized H7N7 lineage. The H7N9 outbreak lineage has spread over a large geographic region and is prevalent in chickens at live poultry markets, which are thought to be the immediate source of human infections. Whether the H7N9 outbreak lineage has, or will, become enzootic in China and neighbouring regions requires further investigation. The discovery here of a related H7N7 influenza virus in chickens that has the ability to infect mammals experimentally, suggests that H7 viruses may pose threats beyond the current outbreak. The continuing prevalence of H7 viruses in poultry could lead to the generation of highly pathogenic variants and further sporadic human infections, with a continued risk of the virus acquiring human-to-human transmissibility.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3801098/" 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/PMC3801098/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lam, Tommy Tsan-Yuk -- Wang, Jia -- Shen, Yongyi -- Zhou, Boping -- Duan, Lian -- Cheung, Chung-Lam -- Ma, Chi -- Lycett, Samantha J -- Leung, Connie Yin-Hung -- Chen, Xinchun -- Li, Lifeng -- Hong, Wenshan -- Chai, Yujuan -- Zhou, Linlin -- Liang, Huyi -- Ou, Zhihua -- Liu, Yongmei -- Farooqui, Amber -- Kelvin, David J -- Poon, Leo L M -- Smith, David K -- Pybus, Oliver G -- Leung, Gabriel M -- Shu, Yuelong -- Webster, Robert G -- Webby, Richard J -- Peiris, Joseph S M -- Rambaut, Andrew -- Zhu, Huachen -- Guan, Yi -- 092807/Wellcome Trust/United Kingdom -- 095831/Wellcome Trust/United Kingdom -- 260864/European Research Council/International -- BB/E009670/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- HHSN266200700005C/AI/NIAID NIH HHS/ -- HSN266200700005C/PHS HHS/ -- England -- Nature. 2013 Oct 10;502(7470):241-4. doi: 10.1038/nature12515. Epub 2013 Aug 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Joint Influenza Research Centre (SUMC/HKU), Shantou University Medical College, Shantou 515041, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23965623" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chickens ; China ; Ducks ; Genes, Viral/genetics ; Humans ; Influenza A Virus, H7N7 Subtype/classification/genetics ; Influenza A Virus, H9N2 Subtype/classification/genetics ; Influenza A virus/*classification/*genetics ; Influenza in Birds/transmission/virology ; Influenza, Human/transmission/*virology ; Molecular Sequence Data ; *Phylogeny ; Reassortant Viruses/classification/genetics
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