Primary photochemistry and energetics leading to the oxidation of the (Mn)4Ca cluster and to the evolution of molecular oxygen in Photosystem II

被引：200

作者：

Rappaport, Fabrice ^{[1
]}

Diner, Bruce A. ^{[2
]}

机构：

[1] Univ Paris 06, CNRS, UMR7141, Inst Biol Physicochim, F-75005 Paris, France

[2] E I Pont Nemours & Co, CR&D, Wilmington, DE 19880 USA

来源：

COORDINATION CHEMISTRY REVIEWS | 2008年 / 252卷 / 3-4期

关键词：

photosystem II; chlorophyll; photochemistry; energetics; water oxidation;

D O I：

10.1016/j.ccr.2007.07.016

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The recent availability of X-ray crystallographic structures of Photosystem II (PSII) together with refined steady-state and time-resolved spectroscopic analyses of site-directed mutants, are leading to a more detailed understanding of the function of this photosystem. Recent data have significantly modified the energetic picture of Photosystem II: the midpoint potentials of the first redox carriers in the chain leading to water-splitting have been reevaluated, the free-energy changes associated with the subsequent electron/proton transfer steps have been estimated and, last but not least, the free-energy landscape of the water-splitting reaction is starting to emerge with the identification of reaction intermediates and the free-energy chances associated with the formation of these transient species. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：259 / 272

页数：14

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