生物技术进展 ›› 2013, Vol. 3 ›› Issue (2): 103-108.DOI: 10.3969/j.issn.2095-2341.2013.02.05

• 进展评述 • 上一篇    下一篇

异常球菌辐射损伤修复机制及其相关功能蛋白的研究进展

张陈,周正富,陈明,林敏,张维*   

  1. 中国农业科学院生物技术研究所, 北京 100081
  • 收稿日期:2013-03-11 出版日期:2013-03-25 发布日期:2013-03-20
  • 通讯作者: 张维,研究员,硕士生导师,主要从事极端微生物分子生物学研究。E-mail:zhangwei01@caas.cn
  • 作者简介:张陈,硕士研究生,研究方向抗逆微生物分子生物学。
  • 基金资助:

    国家转基因新品种培育重大专项(2011ZX08012-001);农业部公益性行业科研专项(201103007);国家自然科学基金项目(31170105);国家863计划项目(2012AA022105)资助。

Research Progress on DNA Repair Mode and Functional Proteins Involved in the Extreme Radiation Resistant Deinococcus radiodurans

ZHANG Chen, ZHOU Zheng-fu, CHEN Ming, LIN Min, ZHANG Wei   

  1. Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
  • Received:2013-03-11 Online:2013-03-25 Published:2013-03-20

摘要: 耐辐射异常球菌(Deinococcus radiodurans)是迄今发现的最具抗辐射的微生物之一,对干燥、电离辐射、紫外线、强氧化剂等极端条件表现出超强的抗性。耐辐射异常球菌具有很多与修复相关的基因,能够通过代谢途径控制的网络系统有效的调整并修复DNA。目前,对胁迫逆境下耐辐射异常球菌损伤DNA的高效精确修复机制的了解还非常有限。本文综述了耐辐射异常球菌DNA损伤修复方式及其重要功能蛋白的研究进展。

关键词: 耐辐射异常球菌, 修复方式, 重要功能蛋白, 同源重组, IrrE, RecA

Abstract: Deinococcus radiodurans (DR) is one of the most ionizing-radiation resistant microorganisms. It has superior resistence to arefaction, ionizing radiation, UV-C, oxidant and other stresses. DR has many genes related to DNA repair system, which could repair DNA efficiently through metabolic pathways network control system. However, there is still very limited understanding of DR efficient and accurate damage DNA repair mechanisms under stresses. This paper mainly summarized the new development about the DNA repair systems and functional proteins of Deinococcus radiodurans.

Key words: Deinococcus radiodurans, repair mode, homologous recombination, functional protein, IrrE, RecA