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鸭肝炎病毒VP1和VP3基因的克隆及其杆状病毒表达载体的构建
引用本文:魏春娅,李日顺,黄昌力,张桂红. 鸭肝炎病毒VP1和VP3基因的克隆及其杆状病毒表达载体的构建[J]. 中国兽医科学, 2012, 0(2): 171-175
作者姓名:魏春娅  李日顺  黄昌力  张桂红
作者单位:华南农业大学兽医学院;河南科技大学
基金项目:国家自然科学基金项目(30871877)
摘    要:为了构建鸭肝炎病毒VP1和VP3结构蛋白基因的杆状病毒表达载体,以RT-PCR方法扩增鸭肝炎病毒的VP1和VP3基因,克隆至pGEM-T载体。经筛选测序验证后,以BamHⅠ+XhoⅠ双酶切回收VP1和VP3目的片段,与经相同方法处理的杆状病毒转座载体pFastBac1连接,得到重组质粒pFastBac1-VP1和pFastBac1-VP3。将经酶切及测序鉴定的阳性重组质粒转化入含穿梭载体Bacmid的感受态细胞DH10Bac,发生转座作用,经抗性及蓝白斑筛选,成功获得各自携带VP1和VP3基因的重组穿梭载体,将其命名为rBacmid-VP1、rBacmid-VP3。研究结果为进一步在昆虫细胞中表达VP1或VP3基因,开发研制鸭肝炎病毒基因工程疫苗奠定了基础。

关 键 词:鸭肝炎病毒  克隆  杆状病毒表达系统  载体构建

Cloning of VP1 and VP3 genes of DHV and construction of their baculovirus expression vectors
WEI Chun-ya,LI Ri-shun,HUANG Chang-li,ZHANG Gui-hong. Cloning of VP1 and VP3 genes of DHV and construction of their baculovirus expression vectors[J]. Chinese Veterinary Science, 2012, 0(2): 171-175
Authors:WEI Chun-ya  LI Ri-shun  HUANG Chang-li  ZHANG Gui-hong
Affiliation:1 (1.College of Veterinary Medicine,South China Agricultural University,Guangzhou 510642,China; 2.Henan University of Science and Technology,Luoyang 471000,China)
Abstract:VP1 and VP3 genes of duck hepatitis virus were amplified by RT-PCR and cloned into the pGEM-T vector. After certified by sequencing and being digested with BamHⅠand XhoⅠ respectively,the genes were linked to the baculovirus transfer vector pFastBac1. In result,the recombinant vectors pFastBac1-VP1 and pFastBac1-VP3 were constructed successfully.Then the recombinant vectors were transformed into DH10Bac E.coli,with the positive recombinant bacmid rBacmid-VP1 and rBacmid-VP3 screened according to the resistant and the blue-white plague screening. The study provided theoretical and practical foundations for the expression of VP1 or VP3 genes in insect cells.
Keywords:duck hepatitis virus  cloning  baculovirus expression vector system  vector construction
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