Clarification of the redox potential regulation in electron transfer reaction of photosystem
| Project/Area Number |
19614007
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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 |
光生命科学
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| Research Institution | Kyoto University |
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Principal Investigator |
TOMO Tatsuya Kyoto University, 大学院・人間環境学研究科, 研究員 (60300886)
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| Project Period (FY) |
2007 – 2008
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| Project Status |
Completed (Fiscal Year 2008)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2007: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 光合成 / 光化学系 / シアノバクテリア / 酸化還元電位 / クロロフィル / 反応中心 / Acaryochoris / Acaryochloris |
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| Research Abstract |
クロロフィルdを主要色素としてもつ、シアノバクテリアAcaryochloris marinaはその吸収帯がクロロフィルaと比較して約100mV低く、酸化還元電位の制御において非常に興味深い生物である。この生物から光化学系I, IIを単離精製し、その反応中心色素がクロロフィルdであることを定常および時間分解分光測定により決定した。また、その酸化還元電位はクロロフィルa型の光化学系と変わらないことを明らかにした。これは、酸化還元電位の調節が還元側で制御されていることを意味しており、光化学系電荷分離の基本的原理を構築するものである。
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Report
(3 results)
Research Products
(33 results)
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[Journal Article] Characterization of highly purified photosystem I complexes from the chlorophyll d-dominated cyanobacterium Acaryochloris marina, MBIC 110172008
Author(s)
Tatsuya Tomo, Yuki Kato, Takehiro Suzuki Seiji Akimoto, Tatsunori Okubo, Takumi Noguchi, Koji Hasegawa, Tohru Tsuchiya, Kazunori Tanaka, Michitaka Fukuya, Naoshi Dohmae, Tadashi Watanabe, and Mamoru Mimuro
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Journal Title
Journal of Biological Chemistry 283
Pages: 18198-18209
Related Report
Peer Reviewed
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[Journal Article] Niche adaptation and genome expansion in the chlorophyll d-producing cyanobacterium Acaryochloris marina2008
Author(s)
Wesley D. Swingley, Min Chen, Patricia C. Cheung, Amber L. Conrad, Liza C. Dejesa, Jicheng Hao, Barbara M. Honchak, Lauren E. Karbach, Ahmet Kurdoglu, Surobhi Lahiri, Stephen D. Mastrian, Hideaki Miyashita, Lawrence Page, Pushpa Ramakrishna, Soichirou Satoh, W. Matthew Sattley, Yuichiro Shimada, Heather L. Taylor, Tatsuya Tomo, Tohru Tsuchiya, Zi T. Wang, Jason Raymond, Mamoru Mimuro, Robert E. Blankenship, and Jeffrey W. Touchman
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Journal Title
Proceedings of the National Academy of Science USA 105
Pages: 2005-2010
Related Report
Peer Reviewed
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[Journal Article] Characterization of highly purified photosystem I complexes from the chlorophyll d-dominated cyanobacterium Acaryochloris marina, MBIC 110172008
Author(s)
Tatsuya Tomo, Yuki Kato, Takehiro Suzuki, Seiji Akimoto, Tatsunori Okubo, Takumi Noguchi, Koji Hasegawa, Tohru Tsuchiya, Kazunori Tanaka, Michitaka Fukuya, Naoshi Dohmae, Tadashi Watanabe, Mamoru Mimuro
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Journal Title
Journal of Biological Chemistry 283
Pages: 18198-18209
Related Report
Peer Reviewed
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[Presentation]2007
Author(s)
Akimoto, M. Yokono, T. Tomo, A. Murakami, and M. Mimuro
Organizer
7^<th> International Conference on Tetrapyrrole Photoreceptors in Photosynthetic Organisms
Place of Presentation
Kyoto (Japan)
Related Report
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