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化学学报
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化学学报 ›› 2007, Vol. 65 ›› Issue (10): 983-988. 上一篇    下一篇

研究论文

Mn2Ca双金属簇合物组装去Mn光系统II水氧化复合物的研究

凌琳1, 陈桂英1, 王文国2, 陈惠2, 李淑芹*,1, 陈昌能2, 刘秋田2, 匡廷云1   

  1. (1中国科学院植物研究所光合中心 光合作用和环境分子生理重点实验室 北京 100093)
    (2中国科学院福建物质结构研究所 结构化学重点实验室 福州 350002)
  • 投稿日期:2006-10-23 修回日期:2006-12-31 发布日期:2007-05-28
  • 通讯作者: 李淑芹

Studies on the Reconstitution of the Water-Oxidizing Complex in Manganese-depleted Photosystem II with Mn2Ca Complex

LING Lin1; CHEN Gui-Ying1; WANG Wen-Guo2; CHEN Hui2; LI Shu-Qin*,1; CHEN Chang-Neng2; LIU Qiu-Tian2; KUANG Ting-Yun1   

  1. (1 Photosynthesis Research Center, Key Laboratory of Photosynthesis and Environmental Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093)
    (2 State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002)
  • Received:2006-10-23 Revised:2006-12-31 Published:2007-05-28
  • Contact: LI Shu-Qin

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报道了Mn2Ca双金属簇合物与去锰的PSII 颗粒的光组装过程, 发现Mn2Ca化合物具有明显的恢复去锰PSII的电子传递和放氧活性的能力, 并且表现了比MnCl2更高的光组装效率. 我们认为该化合物中Ca与Mn原子之间的羧酸酯桥的连接方式可能有利于水氧化复合物(WOC)的光组装及锰簇的稳定.

关键词: 光系统II, 水氧化复合物, Mn2Ca簇合物, 光组装

The reconstitution of water-oxidizing complex (WOC) with a Mn2Ca mixed metal complex in manganese-depleted photosystem II was for the first time reported. The Mn2Ca complex was shown to be more effective in restoring electron transfer and oxygen evolution capacity during photoactivation in comparison with that of MnCl2. It was proposed that the carboxylato bridge between the Ca and Mn atoms may benefit the formation and stability of the Mn cluster.

Key words: photosystem II, water-oxidizing complex, Mn2Ca complex, reconstitution