| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Research Abstract |
The crystal structure of a bacterial photosynthetic light-harvesting-reaction center core complex (LH1-RC) has been determined. The structure reveals a closed arrangement of LH1 complex around the RC, and the LH1 BChl a molecules form a partially overlapping ring with a shorter Mg-Mg spacing compared with that of B850 in LH2. Structural evidence is for first time provided for the possible ubiquinone pathway in the closed LH1 complex. The Ca2+-binding sites are identified. Molecular mechanisms of quinone transport, Ca2+-regulation and interaction between LH1 and RC are described below. The result has been published in Nature.
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