Evidence map›Paper›PMID 18753196›Full record

ArticleJournal of virology2008

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.

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 and 2 more

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 303 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
303citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

303 citing papers in PubMed, 1 synthesis or guideline pooled it, 525 citations in OpenAlex.

  1. Pooled it
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  3. Review
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  7. Article
  8. Review
  9. SARS-CoV-2 S assembly into virions facilitated by host ERM proteins.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  10. SARS-CoV-2 membrane protein biogenesis.bioRxiv : the preprint server for biology · 2026
    Article
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  14. Review
  15. Review
  16. Article
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243 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 3 institutions in 3 countries.

Y L SiuHKU-Pasteur Research Centre, 8 Sassoon Road, Hong Kong SAR, China.
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
University of Hong Kong · HKHKU-Pasteur Research Pole · HKCentre National de la Recherche Scientifique · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

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.

Indexed as

Virus AssemblyAnimalsChlorocebus aethiopsCoronavirus M ProteinsCoronavirus Nucleocapsid ProteinsHumansMembrane GlycoproteinsMicroscopy, Electron, TransmissionNucleocapsid ProteinsSevere acute respiratory syndrome-related coronavirusSpike Glycoprotein, CoronavirusVero CellsViral Envelope ProteinsViral Matrix ProteinsViroporin ProteinsVirosomesCoronavirus M ProteinsCoronavirus Nucleocapsid ProteinsE protein, SARS coronavirusMembrane GlycoproteinsM protein, SARS-CoVNucleocapsid ProteinsSpike Glycoprotein, Coronavirusspike glycoprotein, SARS-CoVspike protein, mouse hepatitis virusViral Envelope ProteinsViral Matrix ProteinsViroporin ProteinsVirosomes

Identifiers

PMID18753196
PMCPMC2573274
OpenAlexW2140388343

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.