›› 2012, Vol. 39 ›› Issue (6): 86-89.

• 生物技术 • 上一篇    下一篇

猪源戊型肝炎病毒ORF2部分基因的原核表达及其鉴定

欧阳昀, 张亮权, 刘志刚, 齐海涛, 徐廷川, 张民泽, 张超逸, 张桂红   

  1. 华南农业大学兽医学院,广东广州 510642
  • 修回日期:2011-11-18 出版日期:2012-06-20 发布日期:2012-07-02
  • 通讯作者: 张桂红,教授,博士生导师。E-mail:guihongzh@126.com E-mail:guihongzh@126.com
  • 作者简介:欧阳昀(1988-),男,江西人,硕士生,主要从事畜禽疾病诊断及相关分子生物学研究。
  • 基金资助:
    国家生猪现代农业产业体系(nycytx009)。

Swine Hepatitis E Virus ORF2 Partial Gene Expression and Identification of Prokaryotic

OUYANG Yun, ZHANG Liang-quan, LIU Zhi-gang, QI Hai-tao, XU Ting-chuan, ZHANG Min-ze, ZHANG Chao-yi, ZHANG Gui-hong   

  1. College of Veterinary Medicine,South China Agricultural University,Guangzhou 510642, China
  • Revised:2011-11-18 Online:2012-06-20 Published:2012-07-02

摘要: 本试验旨在表达猪源戊型肝炎病毒(sHEV)ORF2部分基因片段,纯化表达产物并进行抗原性分析。以sHEV的cDNA为模板,PCR扩增ORF2基因片段,构建重组质粒pET32a-dORF2,转化表达菌BL21,IPTG诱导,SDS-PAGE凝胶电泳和Western blotting进行检测。试验结果表明,获得60 ku的目的蛋白,该蛋白具有良好的抗原性,主要以可溶性形式存在。

关键词: 戊型肝炎病毒; ORF2基因; 重组质粒; 原核表达

Abstract: The assay was aim to express swine hepatitis E virus (sHEV) ORF2 partial gene fragments, purify the expression product and analyze the antigenicity. ORF2 gene was amplified by PCR from sHEV cDNA as a template,and the recombinant plasmid pET32a-dORF2 was constructed,then transformed into the expression bacteria BL21. After IPTG induction, the protein was analyzed by SDS-PAGE and Western blotting. The results showed that the protein was expressed from ORF2 gene in the form of soluble, the protein was 60 ku. The result of Western blotting analysis indicated that the protein could react with the HEV positive serum.

Key words: hepatitis E virus; ORF2 gene; recombinant plasmid; prokaryotic expression

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