Identification of Immunodominant Epitopes on the Membrane Protein of the Severe Acute Respiratory Syndrome-Associated Coronavirus
Identifieur interne : 001327 ( Pmc/Checkpoint ); précédent : 001326; suivant : 001328Identification of Immunodominant Epitopes on the Membrane Protein of the Severe Acute Respiratory Syndrome-Associated Coronavirus
Auteurs : Yuxian He ; Yusen Zhou ; Pamela Siddiqui ; Jinkui Niu ; Shibo JiangSource :
- Journal of Clinical Microbiology [ 0095-1137 ] ; 2005.
Abstract
Similar to other coronaviruses, the membrane (M) protein of severe acute respiratory syndrome-associated coronavirus (SARS-CoV) is a major transmembrane glycoprotein with multiple biological functions. To date, limited information is available about its antigenic properties. In this study, we identified two major immunodominant epitopes on the M protein located in the extreme N-terminal region (residues 1 to 31) and the interior C-terminal region (residues 132 to 161), respectively, by Pepscan analyses against convalescent-phase sera from SARS patients and antisera from virus-immunized mice and rabbits. Synthetic peptides M1-31 derived from the N-terminal epitope and M132-161 derived from the C-terminal epitope were highly reactive with all of the convalescent-phase sera from 40 SARS patients but not with 30 control serum samples from healthy blood donors, suggesting their potential application for serologic diagnosis of SARS. We showed that both peptides (M1-31 and M132-161) were able to induce high titers of antibody responses in the immunized rabbits, highlighting their antigenicity and immunogenicity. These findings provide important information for developing SARS diagnostics and vaccines.
Url:
DOI: 10.1128/JCM.43.8.3718-3726.2005
PubMed: 16081901
PubMed Central: 1234014
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<front><journal-meta><journal-id journal-id-type="nlm-ta">J Clin Microbiol</journal-id><journal-id journal-id-type="publisher-id">jcm</journal-id><journal-title-group><journal-title>Journal of Clinical Microbiology</journal-title></journal-title-group><issn pub-type="ppub">0095-1137</issn><issn pub-type="epub">1098-660X</issn><publisher><publisher-name>American Society for Microbiology (ASM)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">16081901</article-id><article-id pub-id-type="pmc">1234014</article-id><article-id pub-id-type="publisher-id">2408-04</article-id><article-id pub-id-type="doi">10.1128/JCM.43.8.3718-3726.2005</article-id><article-categories><subj-group subj-group-type="heading"><subject>Virology</subject></subj-group></article-categories><title-group><article-title>Identification of Immunodominant Epitopes on the Membrane Protein of the Severe Acute Respiratory Syndrome-Associated Coronavirus</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>He</surname><given-names>Yuxian</given-names></name><xref ref-type="aff" rid="aff1">1</xref></contrib><contrib contrib-type="author"><name><surname>Zhou</surname><given-names>Yusen</given-names></name><xref ref-type="aff" rid="aff1">2</xref></contrib><contrib contrib-type="author"><name><surname>Siddiqui</surname><given-names>Pamela</given-names></name><xref ref-type="aff" rid="aff1">1</xref></contrib><contrib contrib-type="author"><name><surname>Niu</surname><given-names>Jinkui</given-names></name><xref ref-type="aff" rid="aff1">1</xref></contrib><contrib contrib-type="author"><name><surname>Jiang</surname><given-names>Shibo</given-names></name><xref ref-type="aff" rid="aff1">1</xref><xref ref-type="corresp" rid="cor1">*</xref></contrib></contrib-group><aff id="aff1">Viral Immunology Laboratory, Lindsley F. Kimball Research Institute, New York Blood Center, New York, New York 10021,<label>1</label> Department of Molecular Biology, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, Peoples Republic of China<label>2</label></aff><author-notes><corresp id="cor1"><label>*</label>Corresponding author. Mailing address: Lindsley F. Kimball Research Institute, New York Blood Center, 310 East 67th St., New York, NY 10021. Phone: (212) 570-3058. Fax: (212) 570-3099. E-mail: <email>SJiang@NYBloodcenter.org</email>.</corresp></author-notes><pub-date pub-type="ppub"><month>8</month><year>2005</year></pub-date><volume>43</volume><issue>8</issue><fpage>3718</fpage><lpage>3726</lpage><history><date date-type="received"><day>29</day><month>12</month><year>2004</year></date><date date-type="rev-recd"><day>20</day><month>2</month><year>2005</year></date><date date-type="accepted"><day>25</day><month>4</month><year>2005</year></date></history><permissions><copyright-statement>Copyright © 2005, American Society for Microbiology</copyright-statement><copyright-year>2005</copyright-year></permissions><self-uri xlink:title="pdf" xlink:href="zjm00805003718.pdf"></self-uri><abstract><p>Similar to other coronaviruses, the membrane (M) protein of severe acute respiratory syndrome-associated coronavirus (SARS-CoV) is a major transmembrane glycoprotein with multiple biological functions. To date, limited information is available about its antigenic properties. In this study, we identified two major immunodominant epitopes on the M protein located in the extreme N-terminal region (residues 1 to 31) and the interior C-terminal region (residues 132 to 161), respectively, by Pepscan analyses against convalescent-phase sera from SARS patients and antisera from virus-immunized mice and rabbits. Synthetic peptides M1-31 derived from the N-terminal epitope and M132-161 derived from the C-terminal epitope were highly reactive with all of the convalescent-phase sera from 40 SARS patients but not with 30 control serum samples from healthy blood donors, suggesting their potential application for serologic diagnosis of SARS. We showed that both peptides (M1-31 and M132-161) were able to induce high titers of antibody responses in the immunized rabbits, highlighting their antigenicity and immunogenicity. These findings provide important information for developing SARS diagnostics and vaccines.</p></abstract></article-meta></front></pmc><affiliations><list></list><tree><noCountry><name sortKey="He, Yuxian" sort="He, Yuxian" uniqKey="He Y" first="Yuxian" last="He">Yuxian He</name><name sortKey="Jiang, Shibo" sort="Jiang, Shibo" uniqKey="Jiang S" first="Shibo" last="Jiang">Shibo Jiang</name><name sortKey="Niu, Jinkui" sort="Niu, Jinkui" uniqKey="Niu J" first="Jinkui" last="Niu">Jinkui Niu</name><name sortKey="Siddiqui, Pamela" sort="Siddiqui, Pamela" uniqKey="Siddiqui P" first="Pamela" last="Siddiqui">Pamela Siddiqui</name><name sortKey="Zhou, Yusen" sort="Zhou, Yusen" uniqKey="Zhou Y" first="Yusen" last="Zhou">Yusen Zhou</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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