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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Extensive Variation in the O-Antigen Gene Cluster within One <italic>Salmonella enterica</italic> Serogroup Reveals an Unexpected Complex History</title><author><name sortKey="Wang, Lei" sort="Wang, Lei" uniqKey="Wang L" first="Lei" last="Wang">Lei Wang</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Andrianopoulos, Kanella" sort="Andrianopoulos, Kanella" uniqKey="Andrianopoulos K" first="Kanella" last="Andrianopoulos">Kanella Andrianopoulos</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Liu, Dan" sort="Liu, Dan" uniqKey="Liu D" first="Dan" last="Liu">Dan Liu</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Popoff, Michel Y" sort="Popoff, Michel Y" uniqKey="Popoff M" first="Michel Y." last="Popoff">Michel Y. Popoff</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Reeves, Peter R" sort="Reeves, Peter R" uniqKey="Reeves P" first="Peter R." last="Reeves">Peter R. Reeves</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">11872718</idno><idno type="pmc">134871</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC134871</idno><idno type="RBID">PMC:134871</idno><idno type="doi">10.1128/JB.184.6.1669-1677.2002</idno><date when="2002">2002</date><idno type="wicri:Area/Pmc/Corpus">000F98</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000F98</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Extensive Variation in the O-Antigen Gene Cluster within One <italic>Salmonella enterica</italic> Serogroup Reveals an Unexpected Complex History</title><author><name sortKey="Wang, Lei" sort="Wang, Lei" uniqKey="Wang L" first="Lei" last="Wang">Lei Wang</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Andrianopoulos, Kanella" sort="Andrianopoulos, Kanella" uniqKey="Andrianopoulos K" first="Kanella" last="Andrianopoulos">Kanella Andrianopoulos</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Liu, Dan" sort="Liu, Dan" uniqKey="Liu D" first="Dan" last="Liu">Dan Liu</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Popoff, Michel Y" sort="Popoff, Michel Y" uniqKey="Popoff M" first="Michel Y." last="Popoff">Michel Y. Popoff</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Reeves, Peter R" sort="Reeves, Peter R" uniqKey="Reeves P" first="Peter R." last="Reeves">Peter R. Reeves</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author></analytic><series><title level="j">Journal of Bacteriology</title><idno type="ISSN">0021-9193</idno><idno type="eISSN">1098-5530</idno><imprint><date when="2002">2002</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>The 46 serogroups of <italic>Salmonella enterica</italic> have different O-antigens, and each is thought to have a specific form of the O-antigen cluster. Comparison of the 145 serovars of serogroup B revealed much more intraserogroup genetic diversity than expected. The O27 factor, due to an α 1-6 linkage between O units in place of the more common α 1-2 linkage and previously thought to be due to a converting bacteriophage, is now shown to be due to a <italic>wzy</italic><sub><italic>α</italic>(1-6)</sub> gene located within the major gene cluster. Surprisingly a remnant of this gene in all O27<sup>−</sup> serovars shows that the ancestor was O27<sup>+</sup>. There are six distinct gene cluster forms, five apparently derived by a series of deletions and one by an insertion from an ancestral O27<sup>+</sup> form present in 57 serovars. The history of the gene cluster and movement between subspecies I and II can be traced. Two of the derivative forms still have a functional <italic>wzy</italic><sub>α(1-6)</sub> gene, while in three it has been inactivated by deletion or insertion. Two of the forms lacking a functional <italic>wzy</italic><sub>α(1-6)</sub> gene have the <italic>wzy</italic><sub>α(1-2)</sub> gene first described for strain LT2 as <italic>rfc</italic>, whereas for the third the <italic>wzy</italic> gene has not been located.</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 Bacteriol</journal-id><journal-id journal-id-type="publisher-id">jb</journal-id><journal-title>Journal of Bacteriology</journal-title><issn pub-type="ppub">0021-9193</issn><issn pub-type="epub">1098-5530</issn><publisher><publisher-name>American Society for Microbiology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">11872718</article-id><article-id pub-id-type="pmc">134871</article-id><article-id pub-id-type="publisher-id">0810</article-id><article-id pub-id-type="doi">10.1128/JB.184.6.1669-1677.2002</article-id><article-categories><subj-group subj-group-type="heading"><subject>Population Genetics and Evolution</subject></subj-group></article-categories><title-group><article-title>Extensive Variation in the O-Antigen Gene Cluster within One <italic>Salmonella enterica</italic> Serogroup Reveals an Unexpected Complex History</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Wang</surname><given-names>Lei</given-names></name><xref ref-type="aff" rid="aff1">1</xref><xref ref-type="fn" rid="fn1">†</xref></contrib><contrib contrib-type="author"><name><surname>Andrianopoulos</surname><given-names>Kanella</given-names></name><xref ref-type="aff" rid="aff1">1</xref></contrib><contrib contrib-type="author"><name><surname>Liu</surname><given-names>Dan</given-names></name><xref ref-type="aff" rid="aff1">1</xref></contrib><contrib contrib-type="author"><name><surname>Popoff</surname><given-names>Michel Y.</given-names></name><xref ref-type="aff" rid="aff1">2</xref></contrib><contrib contrib-type="author"><name><surname>Reeves</surname><given-names>Peter R.</given-names></name><xref ref-type="aff" rid="aff1">1</xref><xref ref-type="corresp" rid="cor1">*</xref></contrib></contrib-group><aff id="aff1">Department of Microbiology, The University of Sydney, Sydney, New South Wales 2006, Australia ,<label>1</label> WHO Collaboration Center for Reference and Research on Salmonella, Unité de Génétique des Bactéries Intracellulaires, Institut Pasteur, 75724 Paris Cedex 15, France<label>2</label></aff><author-notes><fn id="cor1"><label>*</label><p>Corresponding author. Mailing address: Department of Microbiology, The University of Sydney, Sydney, New South Wales 2006, Australia. Phone: (612) 351 2536. Fax: (612) 351 4571. E-mail: <email>reeves@angis.org.au</email>.</p></fn><fn id="fn1"><label>†</label><p>Present address: Department of Microbiology, College of Life Science, Nankai University, Tianjin 300071, People's Republic of China.</p></fn></author-notes><pub-date pub-type="ppub"><month>3</month><year>2002</year></pub-date><volume>184</volume><issue>6</issue><fpage>1669</fpage><lpage>1677</lpage><history><date date-type="received"><day>1</day><month>7</month><year>2001</year></date><date date-type="accepted"><day>18</day><month>12</month><year>2001</year></date></history><copyright-statement>Copyright © 2002, American Society for Microbiology.</copyright-statement><copyright-year>2002</copyright-year><abstract><p>The 46 serogroups of <italic>Salmonella enterica</italic> have different O-antigens, and each is thought to have a specific form of the O-antigen cluster. Comparison of the 145 serovars of serogroup B revealed much more intraserogroup genetic diversity than expected. The O27 factor, due to an α 1-6 linkage between O units in place of the more common α 1-2 linkage and previously thought to be due to a converting bacteriophage, is now shown to be due to a <italic>wzy</italic><sub><italic>α</italic>(1-6)</sub> gene located within the major gene cluster. Surprisingly a remnant of this gene in all O27<sup>−</sup> serovars shows that the ancestor was O27<sup>+</sup>. There are six distinct gene cluster forms, five apparently derived by a series of deletions and one by an insertion from an ancestral O27<sup>+</sup> form present in 57 serovars. The history of the gene cluster and movement between subspecies I and II can be traced. Two of the derivative forms still have a functional <italic>wzy</italic><sub>α(1-6)</sub> gene, while in three it has been inactivated by deletion or insertion. Two of the forms lacking a functional <italic>wzy</italic><sub>α(1-6)</sub> gene have the <italic>wzy</italic><sub>α(1-2)</sub> gene first described for strain LT2 as <italic>rfc</italic>, whereas for the third the <italic>wzy</italic> gene has not been located.</p></abstract></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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