Najafpour MM, Moghaddam AN, Yang YN, Aro EM, Carpentier R, Eaton-Rye JJ, Lee CH, Allakhverdiev SI. Biological water-oxidizing complex: a nano-sized manganese-calcium oxide in a protein environment.
PHOTOSYNTHESIS RESEARCH 2012;
114:1-13. [PMID:
22941557 DOI:
10.1007/s11120-012-9778-x]
[Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Accepted: 08/20/2012] [Indexed: 06/01/2023]
Abstract
The resolution of Photosystem II (PS II) crystals has been improved using isolated PS II from the thermophilic cyanobacterium Thermosynechococcus vulcanus. The new 1.9 Å resolution data have provided detailed information on the structure of the water-oxidizing complex (Umena et al. Nature 473: 55-61, 2011). The atomic level structure of the manganese-calcium cluster is important for understanding the mechanism of water oxidation and to design an efficient catalyst for water oxidation in artificial photosynthetic systems. Here, we have briefly reviewed our knowledge of the structure and function of the cluster.
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