使用合成双核锰（II）和锰（IV）配合物在锰缺乏的光系统II制剂中重建水氧化复合物：过氧化氢的产生
Reconstitution of the water-oxidizing complex in manganese-depleted photosystem II preparations using synthetic binuclear Mn(II) and Mn(IV) complexes: production of hydrogen peroxide.
作者信息
Nagata Toshi, Nagasawa Takayuki, Zharmukhamedov Sergei K, Klimov Vyacheslav V, Allakhverdiev Suleyman I
机构信息
Research Center for Molecular-scale Nanoscience, Institute for Molecular Science (IMS), National Institutes for Natural Sciences (NINS), 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan.
出版信息
Photosynth Res. 2007 Jul-Sep;93(1-3):133-8. doi: 10.1007/s11120-007-9161-5. Epub 2007 Apr 17.
Reconstitution of Mn-depleted PSII particles with synthetic binuclear Mn complexes (one Mn(II)(2) complex and one Mn(IV)(2) complex) was examined. In both cases the electron-transfer rates in the reconstituted systems were found to be up to 75-82% of that measured in native PSII but the oxygen evolution activity remained lower (<5-40%). However, hydrogen peroxide was also produced by the reconstituted samples. These samples therefore represent a new type of reconstituted PSII that generates hydrogen peroxide as the final product in reconstituted PSII centers.
研究了用合成双核锰配合物（一种Mn(II)₂配合物和一种Mn(IV)₂配合物）对锰耗尽的光系统II颗粒进行重构的情况。在这两种情况下，重构系统中的电子转移速率高达天然光系统II中测得速率的75 - 82%，但氧气释放活性仍然较低（<5 - 40%）。然而，重构样品也会产生过氧化氢。因此，这些样品代表了一种新型的重构光系统II，它在重构的光系统II中心产生过氧化氢作为最终产物。
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