›› 2013, Vol. 40 ›› Issue (3): 80-83.

• 生物技术 • 上一篇    下一篇

猪巨细胞病毒(PCMV)四川株gB基因的克隆与序列分析

何万平1, 赵玲1, 刘艳1, 刘燕1, 吴玉梅1, 徐凯2   

  1. 1. 洪雅县畜牧兽医局,四川洪雅 620360;
    2. 内江市畜牧局,四川内江 641000
  • 收稿日期:2012-08-06 出版日期:2013-03-20 发布日期:2013-03-19
  • 通讯作者: 赵玲(1985-),女,四川人,硕士,主要从事传染病病原分子生物学方向的研究。E-mail:zhaoling196@126.com E-mail:zhaoling196@126.com
  • 作者简介:何万平(1965-),男,四川人,大专,研究方向:传染病病原分子生物学。

Cloning and Sequence Analysis of Porcine Cytomegalovirus (PCMV) gB Gene from Sichuan

HE Wan-ping1, ZHAO Ling1, LIU Yan1, LIU Yan1, WU Yu-mei1, XU Kai2   

  1. 1. Hongya Animal Husbandry and Veterinary Bureau, Hongya 620360, China;
    2. Neijiang Animal Husbandry Bureau, Neijiang 641000, China
  • Received:2012-08-06 Online:2013-03-20 Published:2013-03-19

摘要: 根据GenBank中猪巨细胞病毒(porcine cytomegalovirus,PCMV)gB基因的核苷酸序列(GenBank登录号:FJ870563.1)设计1对引物,采用PCR方法从确诊为猪巨细胞病毒的阳性样品中扩增gB基因,将其克隆到pMD19-T载体上,转化DH5α感受态细胞,提取重组质粒T-PCMV-gB,经PCR和酶切鉴定后测序,并与GenBank上gB相应序列进行同源性分析。结果表明,该基因片段长度为2580 bp,与其他参考株gB基因的核苷酸同源性达98.0%~99.6%;其推导的氨基酸序列与人疱疹病毒6型和7型比较分析结果显示,其同源性分别为42.9%~43.6%和40.5%~40.6%。这些氨基酸差异对病毒生物学特性的影响有待于进一步研究。

关键词: 猪巨细胞病毒; gB基因; 克隆; 序列分析

Abstract: A pair of specific primers was designed according to the sequence of porcine cytomegalovirus (PCMV) gB gene(FJ870563.1) in GenBank. The gB gene was amplified from the final diagnosed PCMV samples by PCR,the amplified fragments was cloned into the pMD19-T vectors,and the positive recombinant T-PCMV-gB was sequenced. The results showed that the complete gene was consisted of 2580 bp.The results of homology analysis showed that gB gene shared 98.0% to 99.6% homology with reference gB sequence, and 42.9% to 43.6%,40.5% to 40.6% of amino acid homology with HHV-6 and HHV-7 respectively. The effects of isolates owing to these amino acid substitutions on biological characterization were unknown.

Key words: porcine cytomegalovirus; gB gene; cloning; sequence analysis

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