吉林大学学报(理学版)

• 生命科学 • 上一篇    

耶尔森菌外膜蛋白H酪氨酸磷酸酶中药抑制剂的筛选

周 琳1, 杜方舟1, 李依纹1, 王 华1, 陈惠鹏2, 付学奇1, 马俊锋1   

  1. 1. 吉林大学 生命科学学院, 长春 130012; 2. 军事医学科学院, 北京 100850
  • 收稿日期:2015-03-12 出版日期:2016-01-26 发布日期:2016-01-19
  • 通讯作者: 付学奇 E-mail:fxq@jlu.edu.cn

Screening Inhibitors of Yersinia Outer Protein HTyrosine Phosphatase from Traditional Chinese Herbs

ZHOU Lin  1, DU Fangzhou  1, LI Yiwen  1, WANG Hua  1,CHEN Huipeng  2, FU Xueqi  1, MA Junfeng  1   

  1. 1. College of Life Science, Jilin University, Changchun 130012, China;2. Academy of Military Medical Sciences, Beijing 100850, China
  • Received:2015-03-12 Online:2016-01-26 Published:2016-01-19
  • Contact: FU Xueqi E-mail:fxq@jlu.edu.cn

摘要:

以大肠杆菌为宿主, 将含有蛋白质酪氨酸磷酸酶YopH催化结构域(ΔYopH)的质粒转入其中, 高效表达了ΔYopH. 分离纯化后, 以ΔYopH为靶标, 应用体外酶促反应动力学实验, 研究111种中药水提液的抑制效果, 筛选出对ΔYopH有明显抑制作用的五倍子、 石榴皮和地榆, 并进一步研究其半数抑制浓度(IC50值)及抑制类型.

关键词: 耶尔森菌外膜蛋白H, 酪氨酸磷酸酶, 中药, 抑制剂

Abstract:

Taking E.coli as the host, we expressed a recombinant protein of Yersinia pestisouter protein H(ΔYopH), which contained the catalytic domain of protein tyrosine phosphatase YopH. After purification, with the ΔYopH as the target, we studied inhibitory effect from 111 kinds of traditional Chinese medicine (TCM) aqueous extracts via an \%in vitro\% enzymatic reaction kinetics experiment, and found three TCMs had obvious inhibitory effect. They were gallnut, sanguisorba and pomegranate peel. Further more, we analyzed their median inhibitory concentration (IC\-\{50\}) values and inhibitory types.

Key words: Yersinia pestisouter protein H (YopH), protein tyrosine phosphatase, traditional Chinese herb, inhibitor

中图分类号: 

  • Q556.1