›› 2013, Vol. 40 ›› Issue (3): 43-45.

• 生物技术 • 上一篇    下一篇

猪瘟病毒E2蛋白主要抗原区编码基因的原核表达及抗原性研究

刘萍1, 王宏博2, 祁光宇1, 刘学荣1, 牟克斌1   

  1. 1. 中农威特生物科技股份有限公司,甘肃兰州 730046;
    2. 中国农业科学院兰州畜牧与兽药研究所,甘肃兰州 730050
  • 收稿日期:2012-04-18 出版日期:2013-03-20 发布日期:2013-03-19
  • 作者简介:刘萍(1979-),女,山东人,硕士,助理研究员,主要从事疫苗相关研究。
  • 基金资助:
    甘肃省科技计划资助(1008FCCA006)。

The Prokaryctic Expression of the Main Antigenic Domains of E2 Protein of Classical Swine Fever Virus and Study on its Antigenicity

LIU Ping1, WANG Hong-bo2, QI Guang-yu1, LIU Xue-rong1, MU Ke-bin1   

  1. 1. China Agriculural Veterinary Biological Science and Technology Co., Ltd., Lanzhou 730046, China;
    2. Lanzhou Institute of Animal & Veterinary Pharmaceutics, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
  • Received:2012-04-18 Online:2013-03-20 Published:2013-03-19

摘要: 本试验旨在分析猪瘟病毒E2蛋白的免疫反应,应用RT-PCR方法扩增了编码猪瘟病毒兔化弱毒疫苗株C株囊膜糖蛋白E2基因主要编码区,并定向克隆到表达载体pET-30a-c(+)中,获得重组表达载体pET30a-E2,将其转化大肠杆菌Rosetta(DE3)感受态细胞,经IPTG诱导表达。SDS-PAGE和Western blottin分析结果表明,E2基因获得高效融合表达,且具有免疫反应活性。本试验为建立E2抗原的检测试剂盒奠定基础。

关键词: 猪瘟病毒; E2蛋白; 原核表达; 抗原性

Abstract: This study was aimed to analyze antigenicity of E2 protein of classical swine fever virus (CSFV). The E2 was amplified by RT-PCR from the genomic RNA of CSFV C-strain and cloned into expression vector pET-30a-c(+) to obtain recombinant pET30a-E2. The truncated E2 protein was expressed with high level in transformed Rosetta (DE3) after induction with IPTG. The results of SDS-PAGE and Western blotting indicated that the gene cloned in downstream of pET30a-E2 was expressed in high level and the recombinant fusion protein had immunologically reactive.

Key words: classical swine fever virus; E2 protein; prokaryotic expression; antigenicity

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