《中国畜牧兽医》---唯一指定的官方网站 ›› 2015, Vol. 42 ›› Issue (6): 1396-1401.doi: 10.16431/j.cnki.1671-7236.2015.06.011

• 生物技术 • 上一篇    下一篇

重庆地区羊口疮病毒的分离鉴定及F1L基因的原核表达

杨钰1, 冯杰1, 刘嫒1, 张素辉2, 许国洋2, 冯将1, 刘宗胜3, 鲜思美1,4   

  1. 1. 贵州大学, 贵阳 550025;
    2. 重庆市畜牧科学院, 重庆 402460;
    3. 毕节市七星关区农牧局草地中心, 毕节 551700;
    4. 贵州省动物疫病研究所, 贵阳 550025
  • 修回日期:2014-12-04 出版日期:2015-06-20 发布日期:2015-07-23
  • 通讯作者: 鲜思美 E-mail:xiansimei2005@163.com
  • 作者简介:杨 钰(1989-),女,山西长治人,硕士生,研究方向:兽医公共卫生学,E-mail:yuxitutu@sina.com
  • 基金资助:

    贵州省科学技术基金项目[黔科合J字(2010)2260];贵州省科学技术基金项目[黔科合LH字(2014)7667];重庆市农发资金项目(14423);毕节市科技局项目:贵州黑山羊羔羊口疮病防治技术攻关[毕科合字(2012)24号]

Isolation and Identification of Orf Virus in Chongqing Area, and Prokaryotic Expression of F1L Gene

YANG Yu1, FENG Jie1, LIU Ai1, ZHANG Su-hui2, XU Guo-yang2, FENG Jiang1, LIU Zong-sheng3, XIAN Si-mei1,4   

  1. 1. Guizhou University, Guiyang 550025, China;
    2. Chongqing Academy of Animal Sciences, Chongqing 402460, China;
    3. Grassland Center of Agriculture and Animal Husbandry, Qixingguan Bureau, Bijie 551700, China;
    4. Institute of Animal Disease, Guizhou Province, Guiyang 550025, China
  • Revised:2014-12-04 Online:2015-06-20 Published:2015-07-23

摘要: 本试验旨在对重庆地区羊口疮病毒(ORFV)进行分离培养及鉴定,并研究其F1L基因序列在大肠杆菌中的表达情况.利用MDBK细胞对疑似ORFV感染的羔羊痂皮中的病毒进行分离培养;对F1L基因序列进行PCR扩增,引入限制性内切酶NotⅠ和EcoRⅠ,构建重组质粒pET-32a-F1L,转化至大肠杆菌BL21菌株后,对阳性菌株进行诱导表达,表达产物进行SDS-PAGE检测和Western blotting鉴定.结果表明,所获得的毒株为ORFV,其F1L基因在大肠杆菌中的表达产物大小约为57.4 ku,主要以包涵体形式存在,5 h为最佳诱导表达时间,并具有良好的反应原性.

关键词: 羊口疮病毒; 分离鉴定; F1L基因; 原核表达

Abstract: The assay was aimed to isolate,culture and identify Orf virus (ORFV) in Chongqing area,and investigate the expression of the F1L gene sequence in E.coli,the virus in the scab samples collected from suspected ORFV infected lamb was isolated in MDBK cell.Moreover,the F1L gene was amplified by PCR and ligated into pET-32a for expression in E.coli.The recombinant plasmid pET-32a-F1L was constructed with the introduction of restriction enzymes NotⅠand EcoRⅠ.The isolated virus was ORFV.SDS-PAGE analysis and Western blotting showed that the target protein was highly expressed with 57.4 ku in lenght at 5 h in E.coli as inclusion bodies and had good reactivity.

Key words: Orf virus (ORFV); isolation and identification; F1L gene; prokaryotic expression

中图分类号: