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A Structural Model for the Water‐Oxidizing Manganese Cluster in Photosystem II
Author(s) -
Wieghardt Karl
Publication year - 1994
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199407251
Subject(s) - photosystem ii , oxidizing agent , manganese , cluster (spacecraft) , extended x ray absorption fine structure , chemistry , photosystem i , crystallography , photosynthesis , photochemistry , absorption spectroscopy , computer science , physics , biochemistry , optics , organic chemistry , programming language
Like a complicated puzzle containing pieces that do not belong, the determination of the structure of the active site of photosystem II presents several intricacies. The picture on the right shows a new model for the oxo‐ and carboxylato‐bridged Mn 4 cluster, which also considers the coordinated cofactors Ca 2+ and Cl − . The concept is based on spectroscopic data (ESR, EXAFS) from years of research.