Identifying the region influencing the cis-mode of maturation of West Nile (Sarafend) virus using chimeric infectious clones

被引：10

作者：

Li, J ^{[1
]}

Bhuvanakantham, R ^{[1
]}

Howe, J ^{[1
]}

Ng, ML ^{[1
]}

机构：

[1] Natl Univ Singapore, Flavivriol Lab, Dept Microbiol, Singapore 117597, Singapore

来源：

BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS | 2005年 / 334卷 / 02期

关键词：

infectious clone; chimeric virus; budding; immunofluorescence; transmission electron microscopy;

D O I：

10.1016/j.bbrc.2005.06.150

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

West Nile (Sarafend) virus [WN(S)V] has been shown to egress by budding at the plasma membrane of infected cells. However, the region influencing this mode of virus release remains to be deciphered. In this study, we have constructed three chimeric clones in which specific regions of West Nile (Wengler) virus [WN(W)V] were replaced for the corresponding regions of WN(S)V in the full-length infectious clone of WN(S)V to define the region responsible for the cis-niode of WN(S)V maturation. The WN(W)V matures by the trans-mode. All of the resulting chimeric viruses were found to be infective. Transmission electron microscopy analyses performed in Vero cells infected with these chimeric Viruses disclosed that the 5' end of the WN(S)V genome plays a major role in influencing the process of maturation at the plasma membrane. (c) 2005 Elsevier Inc. All rights reserved.

引用

页码：714 / 720

页数：7

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