生物技术通报 ›› 2022, Vol. 38 ›› Issue (2): 237-244.doi: 10.13560/j.cnki.biotech.bull.1985.2021-0611

• 综述与专论 • 上一篇    下一篇

超氧化物歧化酶翻译后修饰的研究进展

贾海红(), 李冰清()   

  1. 山东第一医科大学(山东省医学科学院)基础医学院(基础医学研究所)病原生物学实验室,济南 250062
  • 收稿日期:2021-05-11 出版日期:2022-02-26 发布日期:2022-03-09
  • 作者简介:贾海红,女,博士,助理研究员,研究方向:抗氧化酶的结构和功能;E-mail: jia11112222@126.com
  • 基金资助:
    国家自然科学基金项目(31900124)

Research Progress in the Post-translational Modification of Superoxide Dismutase

JIA Hai-hong(), LI Bing-qing()   

  1. Department of Microbiology,Institute of Basic Medicine,Shandong First Medical University & Shandong Academy of Medical Sciences,Jinan 250062
  • Received:2021-05-11 Published:2022-02-26 Online:2022-03-09

摘要:

超氧化物歧化酶(superoxide dismutase,SOD)是生物体内存在的一种抗氧化金属酶,它能够催化超氧阴离子自由基歧化生成氧(O2)和过氧化氢(H2O2),在机体氧化与抗氧化平衡中起到至关重要的作用,且与很多疾病的发生、发展密不可分。对SOD的活性调节一直是研究热点,大多数研究都集中在转录水平(基因表达)和翻译水平(酶蛋白合成)两个方面。随着研究的深入,发现蛋白质翻译后修饰(PTM)对SOD的酶活性有重要影响。近年来,研究蛋白质翻译后修饰对SOD的酶活性的影响越来越受到重视。总结了硝基化、磷酸化、S-谷胱甘肽化、糖基化、乙酰化、次磺酸化、亚磺酸化、SUMO化等几种SOD翻译后的修饰方式,讨论了修饰后对SOD酶活性的影响和生理意义,并对SOD翻译后修饰的发展及面临的挑战进行了展望,为相关疾病的研究、治疗及靶向药物的研制提供了理论基础。

关键词: 超氧化物歧化酶, 蛋白质翻译后修饰, 酶活性, 蛋白翻译后修饰新方式

Abstract:

Superoxide dismutase(SOD)is a kind of antioxidant metal enzyme in living organisms,which can catalyze the disproportionation of superoxide anion radicals to produce oxygen(O2)and hydrogen peroxide(H2O2),and plays an important role in the balance of oxidation and antioxidant in the body as well as is closely related to the occurrence and development of many diseases. The regulation of SOD enzyme activity has always been the focus of research,most of which focus on two aspects:transcription level(gene expression)and translation level(enzyme protein synthesis).With the development of research,it is found that post-translational modification of protein(PTM)has an important effect on the enzyme activity of SOD. In recent years,more and more attentions have been paid to the influence of protein post-translational modification on SOD enzyme activity. In this review,we summarized several ways of SOD post-translation modification,such as nitration,phosphorylation,S-glutathione,glycosylation,acetylation,sulfonic acid modification,sulfonic acid modification,SUMO modification,etc.,and discussed the effect of modification on SOD enzyme activity and its physiological significance. Also we prospected the development and challenges of SOD post-translational modification. It provides a theoretical basis for the research,treatment and development of targeted drugs of related diseases.

Key words: superoxide dismutase, post-translational modification of proteins, enzyme activity, new ways of post-translation modification