植物学报 ›› 2009, Vol. 44 ›› Issue (01): 37-42.

• 特邀综述 • 上一篇    下一篇

拟南芥叶绿体中DEG 蛋白酶功能的研究进展

张艳玲, 孙旭武, 张立新   

  1. 1 兰州大学生命科学学院, 兰州 730000 2 中国科学院植物研究所光合作用研究中心, 光合作用与环境分子生理学重点实验室, 北京 100093
  • 收稿日期:2007-12-20 修回日期:2008-02-15 出版日期:2009-01-01 发布日期:2009-01-01
  • 通讯作者: 张立新

Advances in Function Study of DEG Proteases in Chloroplasts of Arabidopsis thaliana

Yanling Zhang1, Xuwu Sun2, Lixin Zhang2   

  1. 1School of Life Sciences, Lanzhou University, Lanzhou 730000, China 2Key Laboratory of Photosynthesis and Environmental Molecular Physiology, Photosynthesis Research Center, Institute of Botany,Chinese Academy of Sciences, Beijing 100093, China
  • Received:2007-12-20 Revised:2008-02-15 Online:2009-01-01 Published:2009-01-01
  • Contact: Lixin Zhang

摘要: DEGP家族蛋白酶广泛分布于原核生物和真核生物细胞中。在拟南芥中有16个DEGP类似的蛋白酶, 根据蛋白质组学数据, 其中有4个定位于叶绿体中, 分别命名为DEG1、DEG2、DEG5和DEG8。结合生物化学和分子生物学等研究手段对拟 南芥叶绿体中的DEGP蛋白酶进行了分析, 现有的研究初步证明了这些蛋白酶参与光系统II (PSII)复合物反应中心D1蛋白的降解, 从而在PSII复合物的修复循环和功能维护中起重要作用。该文概述了拟南芥叶绿体中DEG蛋白酶的结构和功能的最新研究进展。

Abstract: The DEGP family is widely present in cells of both prokaryotes and eukaryotes. In Arabidopsis thaliana, 16 genes coding for DEGP-like proteases have been identified, 4 of which are located in chloroplasts, according to proteomic data. The DEGPs in chloroplas ts of A. thaliana were analyzed by biochemical and molecular biology methods, and results suggested that these DEGPs are involved in the degradation of the photosystem II reaction center protein D1; therefore, they play important roles in the repair cycle and maintenance of the photosystem II complex. In this paper, we review recent progress in res earch into the structure and function of DEGPs in chloroplasts of A. thaliana.