畜牧兽医学报 ›› 2014, Vol. 45 ›› Issue (4): 609-613.doi: 10.11843/j.issn.0366-6964.2014.04.015

• 预防兽医 • 上一篇    下一篇

A型鸭肝炎病毒微基因组的构建

梁瑞英1,胡文2,李宁3,缪秋红1,毕庄莉3,孟春春1,李传峰1,陈宗艳1,刘光清1*   

  1. (1.中国农业科学院 上海兽医研究所,上海 200241; 2.甘肃农业大学,兰州 730050; 3.安徽农业大学,合肥 230036)
  • 收稿日期:2013-11-06 出版日期:2014-04-23 发布日期:2014-04-22
  • 通讯作者: 刘光清(1968-),男,安徽砀山人,研究员,主要从事病毒分子生物学研究,E-mail:liugq@shvri.ac.cn
  • 作者简介:梁瑞英(1989-),山东菏泽人,硕士生,主要从事动物病毒分子生物学研究,E-mail:ruiyingliang89@163.com
  • 基金资助:

    国家自然科学基金项目(31270194;31101848;31300141);公益性农业科研专项(201003012;201303046;2014JB14);“863”计划(2011AA10A200)

Construction of the Mini-genome of Duck Hepatitis A Virus

LIANG Rui-ying1,HU Wen2,LI Ning3,MIAO Qiu-hong1,BI Zhuang-li3,MENG Chun-chun1,LI Chuan-feng1,CHEN Zong-yan1, LIU Guang-qing1*   

  1. (1.Shanghai Veterinary Institution, Chinese Academy of Agricultural Sciences,Shanghai 200241, China; 2.Gansu Agricultural University,Lanzhou 730050, China; 3.Anhui Agricultural University,Hefei 230036, China)
  • Received:2013-11-06 Online:2014-04-23 Published:2014-04-22

摘要:

为研究A型鸭肝炎病毒(DHAV)非编码区的结构和功能,笔者拟构建该病毒的微基因组并对其进行初步鉴定。采用酶切的方法将萤火虫荧光素酶报告基因(fLuc)与A型鸭肝炎病毒的ORF进行替换;并在5′UTR上游插入海肾荧光素酶报告基因Rluc作为内参基因;同时还在Rluc上游引入锤头状核酶,3′UTR下游引入丁型肝炎核酶,至此得到了含有双报告基因的A型鸭肝炎病毒微基因组(pRluc-fLuc)。将pRluc-fLuc转染DF-1细胞,8 h便可以检测到报告基因的表达,24 h表达量达到峰值。上述结果表明,已经成功构建了A型鸭肝炎病毒微基因组,这为进一步研究病毒非编码区的结构和功能以及病毒的翻译或复制的调控机理提供了良好的技术平台。

关键词: A型鸭肝炎病毒, 微基因组, 非编码区

Abstract:

In this study we constructed and identified the mini-genome of Duck Hepatitis A virus (DHAV), for analysis of the functional and structural properties of DHAV un-translated region (UTR).To construct a bicistronic of DHAV mini-genome (pRluc-fLuc),the ORF of DHAV was replaced by firefly luciferase (fLuc) gene through enzyme digestion and the Renilla luciferase (Rluc) gene was inserted before 5′UTR.We also added the hammerhead ribozyme ahead Rluc gene and the hepatitis delta virus ribozyme behind 3′UTR.We transfected the pRluc-fLuc into DF-1 cells,the fLuc gene expression could be detected at 8 hours post transfected (h.p.t.) and with the levels peaking was at 24 h.p.t.The results showed that the DHAV mini-genome was constructed successfully and can be used for explore the role of UTR in virus transcription and translation.

Key words: duck hepatitis a virus, mini-genome, un-translated region

中图分类号: