生物技术通报 ›› 2013, Vol. 0 ›› Issue (10): 28-33.

• 综述与专论 • 上一篇    下一篇

SUMO在蛋白表达中的应用

汪小杰,毛若雨,张勇,滕达,王秀敏,王建华   

  1. (中国农业科学院饲料研究所 农业部饲料生物技术重点开放实验室,北京 100081)
  • 收稿日期:2013-04-17 修回日期:2013-10-15 出版日期:2013-10-14 发布日期:2013-10-15
  • 作者简介:汪小杰, 男, 硕士研究生, 研究方向: 生物化学与分子生物学;E-mail :xiaojiewang8611@163.com
  • 基金资助:

    国家科技支撑计划课题(2013BAD10B02,2011BAD26B02), 国家自然科学基金(31372346,31302004)

Application of SUMO Protein in Fusion Expression System

Wang Xiaojie, Mao Ruoyu, Zhang Yong, Teng Da, Wang Xiumin, Wang Jianhua   

  1. (Key Laboratory of Feed Biotechnology of MOA,Gene Engineering Laboratory,Feed Research Institute,Chinese Academy of AgriculturalSciences,Beijing 100081)
  • Received:2013-04-17 Revised:2013-10-15 Published:2013-10-14 Online:2013-10-15

摘要:

毒性蛋白表达具有很大的技术挑战性,其不仅对宿主菌有毒性,而且易于被宿主内源性蛋白酶降解。融合表达是实现毒性蛋白表达的有效策略。目前常用的融合标签有硫氧还蛋白、绿色荧光蛋白、麦芽糖结合蛋白、类固醇异构酶、N 利用基质A 及谷胱甘肽-S-转移酶等。而SUMO 标签除具有传统融合标签的特性外,还具有分子小、促进折叠以及能被SUMO 蛋白酶1 专一性识别等优势,因此广受关注。综述SUMO 标签、SUMO 蛋白酶切割特性及其表达系统在异源蛋白融合表达中的应用。

关键词: SUMO, 融合表达SUMO, 蛋白酶1, 毒性蛋白

Abstract:

The expression of toxic protein is more challenging than common protein. Fusion expression strategy may be a good choice to reslove this problem. Traditional fusion tags including thioredoxin, green fluorescent protein, maltose binding protein, ketosteroid isomerase, NusA, glutathione-s-transferase have been widely used. Besides the characteristics of the traditional fusion tags above, SUMO protein has other advantages, such as small molecules, promoting folding and specific cleaved by SUMO protease 1. As a result, it has been widely used recently.
This article depicted the characteristics of SUMO and SUMO pretease. Additonally, the application of SUMO fusion expression system was elaborated.

Key words: SUMO(smallubiquitin-related modifier), Fusion expression, SUMO protease Ⅰ, Toxic protein