Please use this identifier to cite or link to this item: http://dl.umsu.ac.ir/handle/Hannan/11866
Title: 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
Authors: Siu, YL;Teoh, KT;Lo, J;Chan, CM;Kien, F;Escriou, N;Tsao, SW;Nicholls, JM;Altmeyer, R;Peiris, JSM;Bruzzone, R;Nal, B
subject: Coronavirus;SARS-CoV;M proteins;E proteins;N proteins
Year: 2008
Publisher: American Society for Microbiology
Description: Copyright @ 2008 American Society for Microbiology.
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.
The University of Hong Kong and the French Ministry of Health.
URI: http://jvi.asm.org/content/82/22/11318
http://bura.brunel.ac.uk/handle/2438/8899
http://dx.doi.org/10.1128/JVI.01052-08
Standard no: Journal of Virology, 82(22), 11318 - 11330, 2008
0022-538X
Appears in Collections:Dept of Life Sciences Research Papers

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