| Project/Area Number |
22550010
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Physical chemistry
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| Research Institution | Mie University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | 生物物理科学 / 金属酵素 / マンガンイオン / 酸素発生複合体 / Mn/Fe２核系 / 光化学系II / ホスファターゼ / B3LYP / 自然軌道解析 / Mn/Fe2核系 / リボヌクレオチド還元酵素 / 光科学系II |
|---|
| Research Abstract |
Oxygen-Evolving Complex (OEC), which is one of metalloenzymes including manganese ions at active site, catalyzes four-electron oxidation of two water molecules to give oxygen. The catalytic mechanism of OEC is unclear and has been investigated intensively based on theoretical and experimental viewpoints. We have determined the molecular and electronic structures of five oxidative states, S0, S1, S2, S3,and S4 proposed as Kok cycle using theoretical study. We have also proposed the catalyticmechanism. It is expected that our results will be basis to develop a new unit producing oxygen and hydrogen as next-generation energy.
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