X-ray spectroscopy of the photosynthetic oxygen-evolving complex

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• 作者：Kenneth Sauer ; Junko Yano ; Vittal K. Yach ; ra
• 关键词：Photosystem II ; X-ray spectroscopy ; Water oxidation ; Manganese enzyme
• 刊名：Coordination Chemistry Reviews
• 出版年：2008
• 出版时间：February 2008
• 年：2008
• 卷：252
• 期：3-4
• 页码：318-335
• 全文大小：1904 K

文摘

Water oxidation to dioxygen in photosynthesis is catalyzed by a Mn₄Ca cluster with O bridging in Photosystem II (PS II) of plants, algae and cyanobacteria. A variety of spectroscopic methods have been applied to analyzing the participation of the complex. X-ray spectroscopy is particularly useful because it is element-specific, and because it can reveal important structural features of the complex with high accuracy and identify the participation of Mn in the redox chemistry. Following a brief history of the application of X-ray spectroscopy to PS II, an overview of newer results will be presented and a description of the present state of our knowledge based on this approach.