Reconstitution of water-oxidizing complex in manganese-depleted photosystem 2 preparations with synthetic manganese complexes

• DOI: 10.1007/s11099-007-0107-0
• Publication Date: 2007-11-26T10:48:53Z
• 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
• Keywords: 0303 health sciences; 03 medical and health sciences

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.