›› 2009, Vol. 36 ›› Issue (11): 57-59.

• 生物技术 • 上一篇    下一篇

伪狂犬病病毒Ea株gK基因的真核表达

徐引弟1,2,陈焕春2,肖少波2   

  1. (1.河南农业科学院畜牧兽医研究所, 郑州 450002; 2.华中农业大学农业微生物国家重点实验室, 武汉 430070)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-11-20 发布日期:2009-11-20

The Eukaryotic Expression of gK Gene of Pseudorabies Virus Ea Strain

XU Yin-di1,2, CHEN Huan-chun2, XIAO Shao-bo2   

  1. (1.Institute for Animal Husbandry and Veterinary Research, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China; 2.State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-11-20 Published:2009-11-20

摘要: 以伪狂犬病毒Ea株BamH I 5′片段为模板,PCR扩增出约0.9 kb gK基因完整编码区片段,将该基因克隆到pBluescriptIISK+中,构建重组载体pSKgK。进一步将该片段插入真核表达载体pEGFP-C1的增强绿荧光蛋白EGFP下游,构建真核表达载体pEGFPgK,脂质体法转染BHK-21细胞,G418筛选至正常细胞完全死亡,在倒置荧光显微镜下观察,pEGFPgK转染的细胞在细胞膜和细胞浆中发出很强的荧光,而正常细胞不发荧光。证明gK基因在BHK-21细胞上获得了表达,表达在细胞膜和细胞浆中。

关键词: 伪狂犬病病毒; gK基因; 真核表达

Abstract: A pair of primers was synthesized according to the sequence of PRV Ka strain. The fragment containing gK gene coding domains was amplified by polymerase chain reaction (PCR) using BamH I 5′ fragment of PRV Ea strain as template. The fragment was cloned into pBluescriptIISK+, resulting recombination plasmid pSKgK. Then the gK gene was cloned into eukaryotic expression vector pEGFP-C1, following the EGFP (enhanced green fluorescent protein). The recombinant plasmid pEGFPgK were transfected into BHK-21 cell with lipofectin and selected under G418, until the normal BHK-21 cell die out. Expression protein was detected under inverted fluorescence microscope. The results showed that gK gene was expressed in the cytomembrane and cytoplasm of BHK-21 cell.

Key words: PRV; gK gene; eukaryotic expression

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