生物技术通报 ›› 2012, Vol. 0 ›› Issue (12): 101-105.

• 研究报告 • 上一篇    下一篇

Bt 新型基因sip 的克隆、表达和生物信息学分析

刘艳杰, 李海涛, 刘荣梅, 高继国   

  1. 东北农业大学生命科学学院,哈尔滨 150030
  • 收稿日期:2012-05-28 修回日期:2013-01-25 出版日期:2012-12-26 发布日期:2013-02-06
  • 作者简介:刘艳杰, 女, 硕士研究生, 研究方向:生物化学与分子生物学;E-mail:liuyanjie0307@163.com
  • 基金资助:
    : 国家“863”子项目(2011AA10A203),国家“863”项目(2010RCB54)

Bt New Gene sip Cloning, Expression and Bioinformatics Analysis

Liu Yanjie, Li Haitao, Liu Rongmei, Gao Jiguo   

  1. Life Science College of Northeast Agricultural University, Harbin 150030 )
  • Received:2012-05-28 Revised:2013-01-25 Published:2012-12-26 Online:2013-02-06

摘要: 苏云金芽胞杆菌(Bacillus thuringiensis,Bt)杀虫晶体蛋白对农业害虫有特异的杀虫活性,对环境无污染、对人畜无害,成为目前为止研究和应用最为广泛的生物杀虫剂。其中内毒素(insecticidal crystal proteins,ICPs)和营养期杀虫蛋白(vegetativeinsecticidal protein,VIP)研究范围广、技术成熟,而分泌期杀虫蛋白(Secreted insecticidal protein,Sip)相关报道较少。为进一步发掘我国苏云金芽胞杆菌的菌株资源和新型基因资源,从不同生态环境中分离出400 株Bt 野生菌株进行sip 基因的克隆鉴定,其中Bt 野生菌株QZL26 扩增得到1 038 bp 的碱基的序列,编码345 个氨基酸,与Sip1A 蛋白氨基酸序列同源性为91.83%。测序结果提交GenBank 注册,登录号为JQ965994。

关键词: 苏云金芽胞杆菌, sip, 基因, 克隆, 表达, 生物信息学分析

Abstract: Bacillus thuringiensis is the most widely applied type of microbial pesticides because of its high specificity and environmentalsafety. There is a wide range of researchs about ICPs and Vip, but little was known about Sip. To further explore novel Bacillus thuringiensisstrains and the new gene resources in our country, we isolated 400 wild strains from different entironment for sip gene cloning and identification,of which amplification from QZL26 isolate got a sequence of 1 038 bp which codes 345 amino acids and the similarity of the amino acid sequencewith the Sip1A is 91.83%. Sequencing result was submitted to GenBank, and the registration number is JQ965994.