J4

• 基础研究 • 上一篇    下一篇

STAT6分子不同功能域原核表达载体的构建

孙延波,史红艳,李菁华   

  1. 吉林大学基础医学院病原生物学教研室,吉林 长春130021
  • 收稿日期:2005-03-15 修回日期:1900-01-01 出版日期:2006-05-28 发布日期:2006-05-28

Construction of prokaryotic expression vector

SUN Yan-bo, SHI Hong-yan, LI Jing-hua   

  1. Department of Pathogenobiology, School of Basic Medical Sciences, Jilin University, Changchun 130021, China
  • Received:2005-03-15 Revised:1900-01-01 Online:2006-05-28 Published:2006-05-28

摘要: 目的:利用融合表达载体pGEX-6p-2高效表达STAT6分子的不同功能域,以进一步探讨STAT6不同功能域在信号传导中的作用。方法:采用PCR技术, 体外扩增STAT6分子的不同功能域, 扩增后的目的基因分别构建于表达载体。重组的DNA转化到HB101细胞,转化子经超声裂解后,进行SDS-PAGE。结果:Western blotting显示STAT6的SHST、DST和NST功能域分别在60 000、56 000和50 000有较高丰度的表达, 而空载体仅有GST的表达。结论:STAT6不同功能域可在融合表达载体内高效表达。

关键词: JAK家族酪氨酸激酶, T淋巴细胞, 白细胞介素4

Abstract: Objective To explore the influence of different domains of STAT6 expressed by the vector pGEX-6p-2 on signal transduction. Methods Different domains of STAT6 were amplified by PCR technique and ligated respectively into the prokaryotic expression vector. Recombinant DNA was transformed into HB101 cells. Transformants were lysed by super sonic method and lysates run on SDS-PAGE. Results Western blotting analysis showed a high level expression (60 000, 56 000 and 50 000) of different domains of STAT6 SHST,DST and NST, and the empty vector only had GST expression.Conclusion Expression vector pGEX-6p-2 can be used for high l evel expression of different domains of STAT6.

Key words: Janus activated kinase, T lymphocytes, interleukin-4

中图分类号: 

  • Q78