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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Residue 627 of PB2 Is a Determinant of Cold Sensitivity in RNA Replication of Avian Influenza Viruses</title><author><name sortKey="Massin, Pascale" sort="Massin, Pascale" uniqKey="Massin P" first="Pascale" last="Massin">Pascale Massin</name></author><author><name sortKey="Van Der Werf, Sylvie" sort="Van Der Werf, Sylvie" uniqKey="Van Der Werf S" first="Sylvie" last="Van Der Werf">Sylvie Van Der Werf</name></author><author><name sortKey="Naffakh, Nadia" sort="Naffakh, Nadia" uniqKey="Naffakh N" first="Nadia" last="Naffakh">Nadia Naffakh</name></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">11333924</idno><idno type="pmc">114948</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC114948</idno><idno type="RBID">PMC:114948</idno><idno type="doi">10.1128/JVI.75.11.5398-5404.2001</idno><date when="2001">2001</date><idno type="wicri:Area/Pmc/Corpus">000140</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000140</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Residue 627 of PB2 Is a Determinant of Cold Sensitivity in RNA Replication of Avian Influenza Viruses</title><author><name sortKey="Massin, Pascale" sort="Massin, Pascale" uniqKey="Massin P" first="Pascale" last="Massin">Pascale Massin</name></author><author><name sortKey="Van Der Werf, Sylvie" sort="Van Der Werf, Sylvie" uniqKey="Van Der Werf S" first="Sylvie" last="Van Der Werf">Sylvie Van Der Werf</name></author><author><name sortKey="Naffakh, Nadia" sort="Naffakh, Nadia" uniqKey="Naffakh N" first="Nadia" last="Naffakh">Nadia Naffakh</name></author></analytic><series><title level="j">Journal of Virology</title><idno type="ISSN">0022-538X</idno><idno type="eISSN">1098-5514</idno><imprint><date when="2001">2001</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Human influenza A viruses replicate in the upper respiratory tract at a temperature of about 33°C, whereas avian viruses replicate in the intestinal tract at a temperature close to 41°C. In the present study, we analyzed the influence of low temperature (33°C) on RNA replication of avian and human viruses in cultured cells. The kinetics of replication of the NP segment were similar at 33 and 37°C for the human A/Puerto-Rico/8/34 and A/Sydney/5/97 viruses, whereas replication was delayed at 33°C compared to 37°C for the avian A/FPV/Rostock/34 and A/Mallard/NY/6750/78 viruses. Making use of a genetic system for the in vivo reconstitution of functional ribonucleoproteins, we observed that the polymerase complexes derived from avian viruses but not human viruses exhibited cold sensitivity in mammalian cells, which was determined mostly by residue 627 of PB2. Our results suggest that a reduced ability of the polymerase complex of avian viruses to ensure replication of the viral genome at 33°C could contribute to their inability to grow efficiently in humans.</p></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">J Virol</journal-id><journal-id journal-id-type="publisher-id">J VIROL</journal-id><journal-title>Journal of Virology</journal-title><issn pub-type="ppub">0022-538X</issn><issn pub-type="epub">1098-5514</issn><publisher><publisher-name>American Society for Microbiology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">11333924</article-id><article-id pub-id-type="pmc">114948</article-id><article-id pub-id-type="publisher-id">1820</article-id><article-id pub-id-type="doi">10.1128/JVI.75.11.5398-5404.2001</article-id><article-categories><subj-group subj-group-type="heading"><subject>Replication</subject></subj-group><series-title>Note</series-title></article-categories><title-group><article-title>Residue 627 of PB2 Is a Determinant of Cold Sensitivity in RNA Replication of Avian Influenza Viruses</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Massin</surname><given-names>Pascale</given-names></name></contrib><contrib contrib-type="author"><name><surname>van der Werf</surname><given-names>Sylvie</given-names></name><xref ref-type="author-notes" rid="FN150">*</xref></contrib><contrib contrib-type="author"><name><surname>Naffakh</surname><given-names>Nadia</given-names></name></contrib></contrib-group><aff id="N0x9732460.0x9d99570">Unité de Génétique Moléculaire des Virus Respiratoires, URA CNRS 1966, Institut Pasteur, Paris, France</aff><author-notes><fn id="FN150"><label>*</label><p>Corresponding author. Mailing address: Unité de Génétique Moléculaire des Virus Respiratoires, URA CNRS 1966, Institut Pasteur, 25, rue du Dr. Roux, 75724 Paris Cedex 15, France. Phone: 33-1-45-68-87-22. Fax: 33-1-40-61-32-41. E-mail: <email>svdwerf@pasteur.fr</email>.</p></fn></author-notes><pub-date pub-type="ppub"><month>6</month><year>2001</year></pub-date><volume>75</volume><issue>11</issue><fpage>5398</fpage><lpage>5404</lpage><history><date date-type="received"><day>25</day><month>9</month><year>2000</year></date><date date-type="accepted"><day>21</day><month>2</month><year>2001</year></date></history><copyright-statement>Copyright © 2001, American Society for Microbiology</copyright-statement><copyright-year>2001</copyright-year><abstract><p>Human influenza A viruses replicate in the upper respiratory tract at a temperature of about 33°C, whereas avian viruses replicate in the intestinal tract at a temperature close to 41°C. In the present study, we analyzed the influence of low temperature (33°C) on RNA replication of avian and human viruses in cultured cells. The kinetics of replication of the NP segment were similar at 33 and 37°C for the human A/Puerto-Rico/8/34 and A/Sydney/5/97 viruses, whereas replication was delayed at 33°C compared to 37°C for the avian A/FPV/Rostock/34 and A/Mallard/NY/6750/78 viruses. Making use of a genetic system for the in vivo reconstitution of functional ribonucleoproteins, we observed that the polymerase complexes derived from avian viruses but not human viruses exhibited cold sensitivity in mammalian cells, which was determined mostly by residue 627 of PB2. Our results suggest that a reduced ability of the polymerase complex of avian viruses to ensure replication of the viral genome at 33°C could contribute to their inability to grow efficiently in humans.</p></abstract></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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