浙江农业学报 ›› 2023, Vol. 35 ›› Issue (10): 2311-2320.DOI: 10.3969/j.issn.1004-1524.20221496

• 动物科学 • 上一篇    下一篇

重组牛疱疹病毒1型转移载体的构建与初步应用

戴莎莎(), 马小静, 王景松, 田兴苗, 王健霖, 李继东()   

  1. 宁夏大学 动物科技学院,宁夏 银川,750021
  • 收稿日期:2022-10-26 出版日期:2023-10-25 发布日期:2023-10-31
  • 作者简介:戴莎莎(1995—),女,宁夏银川人,硕士研究生,研究方向为动物疫病诊断与防治。E-mail:1421164321@qq.com
  • 通讯作者: *李继东,E-mail:lijidongi@foxmail.com
  • 基金资助:
    宁夏自然科学基金(2022AAC03075);宁夏回族自治区重点研发计划(2019ZWSF3007);宁夏回族自治区重点研发计划(2022BBF03024)

Construction and preliminary application of the universal transfer vector in recombination of Bovine herpes virus type 1

DAI Shasha(), MA Xiaojing, WANG Jingsong, TIAN Xingmiao, WANG Jianlin, LI Jidong()   

  1. College of Animal Science, Ningxia University, Yinchuan 750021, China
  • Received:2022-10-26 Online:2023-10-25 Published:2023-10-31

摘要:

为构建一种能用于牛疱疹病毒1型(BHV-1)重组的转移载体,在真核表达载体pVAX1 CMV(cytomegalovirus)启动子的反向位点插入另一个CMV启动子,构建具有双向启动功能的表达载体prPP,在正、反向CMV启动子下游预置多克隆酶切位点;将绿色荧光蛋白标记基因置于反向启动子下,构建BHV-1重组载体prPgP;以BHV-1囊膜糖蛋白基因gE作为重组位点,将gE上下游同源臂插入prPgP载体中,牛病毒性腹泻病毒(BVDV)E2基因置于正向CMV启动子下,构建p△gErPgP-E2载体,用重组质粒转染已感染BHV-1的牛肾细胞(MDBK),产生的重组病毒经筛选、纯化、鉴定,命名为rBHV-1-△gE/E2,所含GFPE2基因正常表达。结果表明,重组载体prPgP能方便地用于BHV-1的重组,为相关研究及其疫苗研制提供了便捷。

关键词: 牛疱疹病毒1型, 同源臂, 转移载体, 同源重组

Abstract:

The study aimed to construct a universal transfer vector that could be used for recombination of Bovine herpesvirus type 1 (BHV-1). The vector prPP with bidirectional promoter and two multiple cloning sites was constructed by insertion of another CMV promoter at the reverse site of the pVAX1 CMV promoter. The universal transfer vector prPgP was constructed by putting the green fluorescent protein marker gene downstream the reverse CMV promoter. Using the BHV-1 glycoprotein gE as the recombination site, the gE upstream and downstream homology arm was inserted into two multiple cloning sites of the prPgP vector respectively. Following, the recombinant transfer vector p△gErPgP-E2 was constructed by placing the Bovine viral diarrhea virus(BVDV) E2 gene as exogenous gene under the forward CMV promoter. The plasmid p△gErPgP-E2 was transfected with Madin-Darby Bovine kidney (MDBK) infected with BHV-1 to generate recombinant viruses. The recombinant viruses were screened, purified, identified, and named as rBHV-1-△gE/E2. The report gene GFP and BVDV E2 was expressed normally by fluorescence microscopy. The results showed that the recombinant universal vector prPgP could be convenient for BHV-1 recombination and be used in related research and its vaccine development.

Key words: Bovine herpesvirus type 1, homologous arm, transfer vector, homologous recombination

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