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植物研究 ›› 2005, Vol. 25 ›› Issue (4): 419-422.doi: 10.7525/j.issn.1673-5102.2005.04.009

• 论文 • 上一篇    下一篇

小拟南芥chitinase基因原核表达载体的构建及其在大肠杆菌中的表达

朱新霞1, 田丽萍2, 高剑峰2, 祝建波1   

  1. 1. 新疆兵团绿洲生态农业重点实验室, 石河子 832003;
    2. 石河子大学生物工程学院, 石河子 832003
  • 收稿日期:2004-09-17 出版日期:2005-12-15 发布日期:2016-06-14
  • 作者简介:朱新霞(1968-),女,硕士,副研究员,主要从事生物技术研究。
  • 基金资助:
    国家自然科学基金项目;新天石大科研基金(XS20000P)

Construction of prokaryotic expression vector of Arabidopsis pumila chitinase and its expression in Escherichia coil

ZHU Xin-Xia1, TIAN Li-Ping2, GAO Jian-Feng2, ZHU Jian-Bo1   

  1. 1. Key Laboratory of Oasis Ecology Agriculture of Xinjiang Bingtuan, Shihezi 832003;
    2. College of Bio-engineering, Shihezi University, Shihezi 832003
  • Received:2004-09-17 Online:2005-12-15 Published:2016-06-14

摘要: 以野生资源小拟南芥(Arabidopsis pumila)chitinase基因的cDNA为基础,采用基因重组技术,将该基因按正确的阅读框架定向克隆于原核表达载体pET-30a(+)中,转化大肠杆菌BL21(DE3),用IPTG诱导表达,并对表达产物进行SDS- PAGE分析。结果表明:重组小拟南芥chitinase基因在大肠杆菌中获得高效表达,其分子量约为40 KD。小拟南芥chitinase基因原核表达载体的成功构建和重组小拟南芥chitinase蛋白在大肠杆菌中的高效表达,为进一步研究其生物学功能奠定了基础。

关键词: 小拟南芥, ch itinase, 表达载体构建, 基因表达

Abstract: Prokaryotic expression vector pET-CH of Arabidopsis pumila chitinase gene cDNA was constructed by means of recombinant gene technology and expressed in Escherichia coil BL21 under induction of IPTG, the expressed products were detected by SDS-PAGE analysis.Result show: Recombinant chitinase was efficiently expressed in E. coli BL21, it molecular weight was about 40 KD.The successful construction of prokaryotic expression vector containing Arabidopsis pumila chitinase gene and effective expression of recombinant chitinase in E. coli BL21 laid the foundation for further study on its biological function.

Key words: Arabidopsis pumila, chitinase, cDNA cloning vectors, gene expression