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Reconstitution of water-oxidizing complex in manganese-depleted photosystem 2 preparations with synthetic manganese complexes |
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| Authors: | G. Y. Chen G. Y. Han L. Ling D. G. Huang S. Q. Li A. A. Khorobrykh S. K. Zharmukhamedov Q. T. Liu V. V. Klimov T. Y. Kuang |
| Affiliation: | (1) Photosynthesis Research Center, Key Laboratory of Photosynthesis and Environmental Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China;(2) State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China;(3) Institute of Basic Biological Problems, Russian Academy of Sciences, Pushchino, Moscow region, 142290, Russia |
| Abstract: | Four synthetic manganese complexes in which Mn atoms have different coordination environments and valence states were used to reconstitute water-oxidizing complex (WOC) in Mn-depleted photosystem 2 preparations. Three Mn-complexes restored a significant rate of electron transfer and oxygen evolution except one complex in which Mn atom ligated to the O-atoms within the ligands by covalent linkage. The effect of coordination environment of the Mn-atom within the Mn-complexes on their efficiencies in reconstituting the electron transport and oxygen evolution was analysed. |
| Keywords: | manganese complexes reconstitution water-oxidizing complex |
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