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The M, E, and N structural proteins of the severe acute respiratory syndrome coronavirus are required for efficient assembly, trafficking, and release of virus-like particles.

Identifieur interne : 000159 ( Hal/Corpus ); précédent : 000158; suivant : 000160

The M, E, and N structural proteins of the severe acute respiratory syndrome coronavirus are required for efficient assembly, trafficking, and release of virus-like particles.

Auteurs : Y. L. Siu ; K. T. Teoh ; J. Lo ; C. M. Chan ; F. Kien ; N. Escriou ; S. W. Tsao ; J. M. Nicholls ; R. Altmeyer ; J. S. M. Peiris ; R. Bruzzone ; B. Nal

Source :

RBID : Hal:pasteur-00543224

Abstract

The production of virus-like particles (VLPs) constitutes a relevant and safe model to study molecular determinants of virion egress. The minimal requirement for the assembly of VLPs for the coronavirus responsible for severe acute respiratory syndrome in humans (SARS-CoV) is still controversial. Recent studies have shown that SARS-CoV VLP formation depends on either M and E proteins or M and N proteins. Here we show that both E and N proteins must be coexpressed with M protein for the efficient production and release of VLPs by transfected Vero E6 cells. This suggests that the mechanism of SARS-CoV assembly differs from that of other studied coronaviruses, which only require M and E proteins for VLP formation. When coexpressed, the native envelope trimeric S glycoprotein is incorporated onto VLPs. Interestingly, when a fluorescent protein tag is added to the C-terminal end of N or S protein, but not M protein, the chimeric viral proteins can be assembled within VLPs and allow visualization of VLP production and trafficking in living cells by state-of-the-art imaging technologies. Fluorescent VLPs will be used further to investigate the role of cellular machineries during SARS-CoV egress.


Url:
DOI: 10.1128/JVI.01052-08

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Hal:pasteur-00543224

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<orgName>Centre de recherche Université de Hong-Kong-Pasteur</orgName>
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</author>
<author>
<name sortKey="Bruzzone, R" sort="Bruzzone, R" uniqKey="Bruzzone R" first="R." last="Bruzzone">R. Bruzzone</name>
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<orgName>Centre de recherche Université de Hong-Kong-Pasteur</orgName>
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<author>
<name sortKey="Nal, B" sort="Nal, B" uniqKey="Nal B" first="B." last="Nal">B. Nal</name>
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<orgName>Centre de recherche Université de Hong-Kong-Pasteur</orgName>
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<addrLine>Hong Kong University Pasteur Research Centre - 1/F Dexter HC Man Building 8, Sassoon Road Pokfulam</addrLine>
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<addrLine>25, rue du Dr Roux 75724 Paris Cedex 15</addrLine>
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</analytic>
<idno type="DOI">10.1128/JVI.01052-08</idno>
<series>
<title level="j">Journal of Virology</title>
<idno type="ISSN">0022-538X</idno>
<imprint>
<date type="datePub">2008-11</date>
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<front>
<div type="abstract" xml:lang="en">
<p>The production of virus-like particles (VLPs) constitutes a relevant and safe model to study molecular determinants of virion egress. The minimal requirement for the assembly of VLPs for the coronavirus responsible for severe acute respiratory syndrome in humans (SARS-CoV) is still controversial. Recent studies have shown that SARS-CoV VLP formation depends on either M and E proteins or M and N proteins. Here we show that both E and N proteins must be coexpressed with M protein for the efficient production and release of VLPs by transfected Vero E6 cells. This suggests that the mechanism of SARS-CoV assembly differs from that of other studied coronaviruses, which only require M and E proteins for VLP formation. When coexpressed, the native envelope trimeric S glycoprotein is incorporated onto VLPs. Interestingly, when a fluorescent protein tag is added to the C-terminal end of N or S protein, but not M protein, the chimeric viral proteins can be assembled within VLPs and allow visualization of VLP production and trafficking in living cells by state-of-the-art imaging technologies. Fluorescent VLPs will be used further to investigate the role of cellular machineries during SARS-CoV egress.</p>
</div>
</front>
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<hal api="V3">
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<title xml:lang="en">The M, E, and N structural proteins of the severe acute respiratory syndrome coronavirus are required for efficient assembly, trafficking, and release of virus-like particles.</title>
<author role="aut">
<persName>
<forename type="first">Y. L.</forename>
<surname>Siu</surname>
</persName>
<idno type="halauthorid">554497</idno>
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</author>
<author role="aut">
<persName>
<forename type="first">K. T.</forename>
<surname>Teoh</surname>
</persName>
<idno type="halauthorid">554498</idno>
<affiliation ref="#struct-55925"></affiliation>
</author>
<author role="aut">
<persName>
<forename type="first">J.</forename>
<surname>Lo</surname>
</persName>
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<email type="domain">univ-jfc.fr</email>
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<author role="aut">
<persName>
<forename type="first">C. M.</forename>
<surname>Chan</surname>
</persName>
<idno type="halauthorid">554499</idno>
<affiliation ref="#struct-136023"></affiliation>
</author>
<author role="aut">
<persName>
<forename type="first">F.</forename>
<surname>Kien</surname>
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<author role="aut">
<persName>
<forename type="first">N.</forename>
<surname>Escriou</surname>
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<idno type="halauthorid">114171</idno>
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<author role="aut">
<persName>
<forename type="first">S. W.</forename>
<surname>Tsao</surname>
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<persName>
<forename type="first">J. M.</forename>
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<forename type="first">R.</forename>
<surname>Altmeyer</surname>
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<persName>
<forename type="first">J. S. M.</forename>
<surname>Peiris</surname>
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<affiliation ref="#struct-136023"></affiliation>
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<persName>
<forename type="first">R.</forename>
<surname>Bruzzone</surname>
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<idno type="halauthorid">554505</idno>
<affiliation ref="#struct-55925"></affiliation>
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<author role="crp">
<persName>
<forename type="first">B.</forename>
<surname>Nal</surname>
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<email type="md5">371f86fdcb828bc4dc10a51980c1c031</email>
<email type="domain">hku.hk</email>
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<editor role="depositor">
<persName>
<forename>Francois</forename>
<surname>Kien</surname>
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<email type="domain">gmail.com</email>
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<date type="whenSubmitted">2010-12-06 10:43:27</date>
<date type="whenModified">2020-03-28 02:12:03</date>
<date type="whenReleased">2010-12-09 11:19:56</date>
<date type="whenProduced">2008-11</date>
<date type="whenEndEmbargoed">2010-12-06</date>
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<ref type="externalLink" target="https://jvi.asm.org/content/82/22/11318.full.pdf"></ref>
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<forename>Francois</forename>
<surname>Kien</surname>
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<email type="domain">gmail.com</email>
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<idno type="stamp" n="PASTEUR">Institut Pasteur</idno>
<idno type="stamp" n="CNRS">CNRS - Centre national de la recherche scientifique</idno>
<idno type="stamp" n="RIIP_PARIS">Institut Pasteur de Paris</idno>
<idno type="stamp" n="RIIP">Institut Pasteur RIIP (Réseau International)</idno>
<idno type="stamp" n="RIIP_HONGKONG" corresp="RIIP">Centre de Recherche Université de Hong-Kong-Pasteur</idno>
<idno type="stamp" n="UNIV-PARIS7" corresp="UNIV-PARIS">Université Denis Diderot - Paris VII</idno>
<idno type="stamp" n="USPC">Université Sorbonne Paris Cité</idno>
<idno type="stamp" n="UNIV-PARIS">Université de Paris</idno>
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<notesStmt>
<note type="audience" n="2">International</note>
<note type="popular" n="0">No</note>
<note type="peer" n="1">Yes</note>
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<forename type="first">C. M.</forename>
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<forename type="first">S. W.</forename>
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<forename type="first">J. M.</forename>
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<forename type="first">R.</forename>
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<author role="aut">
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<forename type="first">J. S. M.</forename>
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<forename type="first">R.</forename>
<surname>Bruzzone</surname>
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<idno type="halauthorid">554505</idno>
<affiliation ref="#struct-55925"></affiliation>
</author>
<author role="crp">
<persName>
<forename type="first">B.</forename>
<surname>Nal</surname>
</persName>
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<email type="domain">hku.hk</email>
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<idno type="eissn">1098-5514</idno>
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<publisher>American Society for Microbiology</publisher>
<biblScope unit="volume">82</biblScope>
<biblScope unit="issue">22</biblScope>
<biblScope unit="pp">11318-30</biblScope>
<date type="datePub">2008-11</date>
<date type="dateEpub">2008-08-27</date>
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</monogr>
<idno type="doi">10.1128/JVI.01052-08</idno>
<idno type="pubmed">18753196</idno>
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<classCode scheme="mesh">Animals</classCode>
<classCode scheme="mesh">Cercopithecus aethiops</classCode>
<classCode scheme="mesh">Virosomes</classCode>
<classCode scheme="mesh">Virus Assembly</classCode>
<classCode scheme="mesh">Humans</classCode>
<classCode scheme="mesh">Membrane Glycoproteins</classCode>
<classCode scheme="mesh">Microscopy, Electron, Transmission</classCode>
<classCode scheme="mesh">Nucleocapsid Proteins</classCode>
<classCode scheme="mesh">SARS Virus</classCode>
<classCode scheme="mesh">Vero Cells</classCode>
<classCode scheme="mesh">Viral Envelope Proteins</classCode>
<classCode scheme="mesh">Viral Matrix Proteins</classCode>
<classCode scheme="halDomain" n="sdv.mp.vir">Life Sciences [q-bio]/Microbiology and Parasitology/Virology</classCode>
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</textClass>
<abstract xml:lang="en">
<p>The production of virus-like particles (VLPs) constitutes a relevant and safe model to study molecular determinants of virion egress. The minimal requirement for the assembly of VLPs for the coronavirus responsible for severe acute respiratory syndrome in humans (SARS-CoV) is still controversial. Recent studies have shown that SARS-CoV VLP formation depends on either M and E proteins or M and N proteins. Here we show that both E and N proteins must be coexpressed with M protein for the efficient production and release of VLPs by transfected Vero E6 cells. This suggests that the mechanism of SARS-CoV assembly differs from that of other studied coronaviruses, which only require M and E proteins for VLP formation. When coexpressed, the native envelope trimeric S glycoprotein is incorporated onto VLPs. Interestingly, when a fluorescent protein tag is added to the C-terminal end of N or S protein, but not M protein, the chimeric viral proteins can be assembled within VLPs and allow visualization of VLP production and trafficking in living cells by state-of-the-art imaging technologies. Fluorescent VLPs will be used further to investigate the role of cellular machineries during SARS-CoV egress.</p>
</abstract>
</profileDesc>
</hal>
</record>

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   |texte=   The M, E, and N structural proteins of the severe acute respiratory syndrome coronavirus are required for efficient assembly, trafficking, and release of virus-like particles.
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