Identification and characterization of a prawn white spot syndrome virus gene that encodes an envelope protein VP31

被引：48

作者：

Li, L ^{[1
]}

Xie, XX ^{[1
]}

Yang, F ^{[1
]}

机构：

[1] Third Inst Oceanog, Key Lab Marine Biogenet Resources, Xiamen, Peoples R China

来源：

VIROLOGY | 2005年 / 340卷 / 01期

基金：

中国国家自然科学基金;

关键词：

white spot syndrome virus; VP3; 1; envelope protein; the neutralization experiment;

D O I：

10.1016/j.virol.2005.06.007

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Based on a combination of SDS-PAGE and mass spectrometry, a protein with an apparent molecular mass of 31 kDa (termed as VP3 1) was identified from purified shrimp white spot syndrome virus (WSSV) envelope fraction. The resulting amino acid (aa) sequence matched an open reading frame (WSV340) of the WSSV genome. This ORF contained 783 nucleotides (m), encoding 261 aa. A fragment of WSV340 was expressed in Escheriehia coli as a glutathione S-transferase (GST) fusion protein with a 6His-tag, and then specific antibody was raised. Western blot analysis and the immunoelectron microscope method (IEM) confirmed that VP31 was present exclusively in the viral envelope fraction. The neutralization experiment suggested that VP31 might play an important role in WSSV infectivity. (c) 2005 Elsevier Inc. All rights reserved.

引用

页码：125 / 132

页数：8

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