食品科学 ›› 2009, Vol. 30 ›› Issue (23 ): 286-289.doi: 10.7506/spkx1002-6300-200923064

• 生物工程 • 上一篇    下一篇

核心链霉亲和素的原核表达

彭福中1,陈雪岚1,*,徐 锋2,熊勇华2   

  1. 1.江西师范大学生命科学学院 2.南昌大学 食品科学与技术国家重点实验室
  • 收稿日期:2009-08-24 出版日期:2009-12-01 发布日期:2010-12-29
  • 通讯作者: 陈雪岚 E-mail:xuelanchen14@yahoo.com.cn

Expression of Core-Streptavidin Gene in Prokaryotic Host

PENG Fu-zhong1,CHEN Xue-lan1,*,XU Feng2,XIONG Yong-hua2   

  1. 1. College of Life Science, Jiangxi Normal University, Nanchang 330022, China;2. State Key Laboratory of Food Science and
    Technology, Nanchang University, Nanchang 330047, China
  • Received:2009-08-24 Online:2009-12-01 Published:2010-12-29
  • Contact: CHEN Xue-lan E-mail:xuelanchen14@yahoo.com.cn

摘要:

以链霉菌(Streptomyces avidinii)的基因组为模板通过PCR 扩增得到354bp 的核心链霉亲和素基因Stv13,并将其与pET22b+、pGEX-4T-1 连接构建大肠杆菌表达载体,与P43 连接构建枯草芽孢杆菌分泌型表达载体。大肠杆菌表达的核心链霉亲和素Stv13 大部分以包涵体的形式存在,而枯草芽孢杆菌则无核心链霉亲和素Stv13分泌表达。

关键词: 链霉亲和素, 核心链霉亲和素, 大肠杆菌, 枯草芽孢杆菌

Abstract:

Core-streptavidin gene Stv13 (354bp) has been cloned from Streptmyces avidinii using PCR amplification. Plasmids were constructed through inserting the Stv 13 gene into pET22b+ and pGEX-4T-1 vectors for expression in E. coli. Another plasmid was also constructed through inserting the Stv13 gene into P43 vector for expression in B. subtilis. Most of core-streptavidin gene Stv13 was expressed in inclusion body as an insoluble form in E. coli expression system. In contrast, little core-streptavidin gene Stv13 was expressed in B. subtilis expression system.

Key words: streptavidin, core-streptavidin, Escherichia coli, Bacillus subtilis

中图分类号: