自然杂志 ›› 2021, Vol. 43 ›› Issue (3): 165-175.doi: 10.3969/j.issn.0253-9608.2021.03.002

• 专题综述 • 上一篇    下一篇

高等植物光系统复合物结构生物学研究进展

苏小东,李梅   

  1. 中国科学院生物物理研究所 生物大分子国家重点实验室,北京 100101
  • 收稿日期:2021-04-25 出版日期:2021-06-25 发布日期:2021-06-13
  • 通讯作者: 李梅,通信作者,研究方向:光合作用相关(膜)蛋白及复合物的结构与功能。

Advances in structural biology of photosystem complexes in higher plants

SU Xiaodong, LI Mei   

  1. National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2021-04-25 Online:2021-06-25 Published:2021-06-13

摘要: 光合作用过程中,植物通过位于叶绿体中类囊体膜上的光系统II和光系统I及其他蛋白复合物将吸收的太阳能转化为化学能,并释放氧气。两个光系统均是由各自的核心复合物和外周捕光天线组成的多亚基膜蛋白色素复合体,并参与植物在不同光照环境的适应调节过程,了解这些复合物的结构有助于对光合作用分子机制的深入理解。文章系统总结了近期高等植物光系统II和光系统I及相关蛋白复合物的结构生物学研究进展。

关键词: 光合作用, 光系统II, 光系统I, 状态转换, 冷冻电镜

Abstract:  Plants convert absorbed solar energy into chemical energy and release oxygen through photosynthesis, a process performed by several protein supercomplexes, including photosystem II and photosystem I. Both photosystems are membrane-embedded proteinpigment supercomplexes, consisting of the core complex and the peripheral antennae system. The two photosystems show dynamic structural feature that contributes to the adaptation and acclimation of plants under different light conditions. Structural information of these supercomplexes provides the basis for deeper understanding the molecular mechanism of photosynthesis. In this paper, we summarized the recent research progress on the structural analysis of photosystems II and I, and related protein complexes from higher plants.