Towards understanding the chemistry of photosynthetic oxygen evolution: dynamic structural changes, redox states and substrate water binding of the Mn cluster in photosystem II

被引:42
作者
Messinger, J [1 ]
机构
[1] Tech Univ Berlin, Max Volmer Inst, D-10623 Berlin, Germany
来源
BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS | 2000年 / 1459卷 / 2-3期
关键词
photosystem II; water oxidation; oxygen evolution; manganese cluster;
D O I
10.1016/S0005-2728(00)00187-0
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
This mini-review summarizes my postdoctoral research in the labs of T. Wydrzynski/C.B. Osmond, J.H.A. Nugent/M.C.W. Evans and V.K. Yachandra/K. Sauer/M.P. Klein. The results are reported in the context of selected data from the literature. Special emphasis is given to the mode of substrate water binding, Mn oxidation states and the structures of the Mn cluster in the four (meta)stable redox states of the oxygen evolving complex. The paper concludes with a working model for the mechanism of photosynthetic water oxidation that combines CL-oxo bridge oxidation in the S-3 State (V.K. Yachandra, K. Sauer, M.P. Klein, Chem. Rev. 96 (1996) 2927-2950) with O-O bond formation between two terminal Mn-hydroxo ligands during the S-3 --> (S-4) --> S-0 transition. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:481 / 488
页数:8
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