Molecular structure and function of water oxidation in Photosystem II : for application to hydrogen production
Project/Area Number |
18770116
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Single-year Grants |
Research Field |
Functional biochemistry
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Research Institution | Ehime University (2008) Osaka Prefecture University (2006-2007) |
Principal Investigator |
SUGIURA Miwa Ehime University, 無細胞生命科学工学研究センター, 准教授 (80312255)
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Project Period (FY) |
2006 – 2008
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Project Status |
Completed (Fiscal Year 2008)
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Budget Amount *help |
¥3,950,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2006: ¥2,800,000 (Direct Cost: ¥2,800,000)
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Keywords | 生体エネルギー変換 / 光合成電子伝達系 / 酸素発生 / 部位特異的変異 / 好熱性ラン藻 / 光化学系II / 好熱性シアノバクテリア / 水素エネルギー |
Research Abstract |
光合成によるエネルギー変換機能を改良して新規エネルギー生産に応用することを目的として、その初発の反応である水の酸化機能を高めた組換え体の作製を試みた。遺伝子組換えによって遺伝子の発現を制御したり、光化学系II反応中心のアミノ酸を変えることにより、水の酸化機能を1.8倍高めることに成功した。更に機能を高める目的で、水の酸化で生じた電子を受け取る+1.2 Vの高い酸化還元電位を持つP680クロロフィルのリガンドアミノ酸を別のアミノ酸に置換したところ、水の酸化には殆ど影響しないことが明らかになった。
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Report
(4 results)
Research Products
(65 results)
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[Journal Article] Probing the coupling between proton and electron transfer in Photosystem II core complexes containing a 3-fluorotyrosine2009
Author(s)
Rappaport, F. Boussac, A., Force, D. A., Peloquin, J., Brynda, M., Sugiura, M., Un, U., Britt, R. and Diner, B.
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Journal Title
J. Am. Chem. Soc 131
Pages: 4425-4433
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[Journal Article] Probing the coupling between proton and electron transfer in Photosystem II core complexes containing a 3-fluorotyrosine2009
Author(s)
IRappaport, F., Boussac, A., Force, D. A., Peloquin, J., Brynda, M., Sugiura, M., Un, U., Britt, R., and Diner. B
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Journal Title
J. Am. Chem. Soc 131
Pages: 4425-4433
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Peer Reviewed
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[Journal Article] Evidence for a stable association of Psb30 (Ycf12) with photosystem II core complex in the cyanobacterium Synechocystis sp. PCC 68032008
Author(s)
Inoue-Kashino, N., Takahashi, T., Ban, A., Sugiura, M., Takahashi, Y., Satoh, K. and Kashino, Y
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Journal Title
Photosynth. Res 98
Pages: 323-335
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[Journal Article] X-ray crystallography identifies two chloride binding sites in the oxygen evolving centre of Photosystem II2008
Author(s)
Murray, J.W, Maghlaoui, K., Kargul, J., Ishida, N., Lai, T.-L., Rutherford, A.W., Sugiura, M., Boussac. A. and Barber, J.
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Journal Title
Energy & Environmental Science 1
Pages: 161-166
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[Journal Article] Biosynthetic Exchange of Bromide for Chloride and Strontium for Calcium in the Photosystem II Oxygen-evolving Enzymes2008
Author(s)
Ishida, N, Sugiura, M., Rappaport, F., Lai, T.-L., Rutherford, A.W., and Boussac, A.
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Journal Title
J. Biol. Chem 283
Pages: 13330-13340
Related Report
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[Journal Article] Biosynthetic Exchange of Bromide for Chloride and Strontium for Calcium in the Photosystem II Oxygen-evolving Enzymes2008
Author(s)
Ishida, N, Sugiura, M., Rappaport, F., Lai, T.-L., Rutherford, A.W., and Boussac, A
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Journal Title
J. Biol. Chem. 283
Pages: 13330-13340
Related Report
Peer Reviewed
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[Journal Article] X-ray crystallography identifies two chloride binding sites in the oxygen evolving centre of Photosystem II2008
Author(s)
Murray, J.W, Maghlaoui, K., Kargul, J., Ishida, N., Lai, T.-L., Rutherford, A.W., Sugiura, M., Boussac. A. and Barber, J
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Journal Title
Energy & Environmental Science 1
Pages: 161-166
Related Report
Peer Reviewed
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[Journal Article] Evidence for a stable association of Psb30 (Ycf12) with photosystem II core complex in the cyanobacterium Synechocystis sp. PCC 68032008
Author(s)
Inoue-Kashino, N., Takahashi, T., Ban, A., Sugiura, M., Takahashi, Y., Satoh, K., and Kashino, Y
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Journal Title
Photosynth. Res 98
Pages: 323-335
Related Report
Peer Reviewed
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[Journal Article] Ycf12 is a core subunit in photosystem II complex2007
Author(s)
Kashino, Y., Ikeda, Y., Ban, A., Inoue-Kashino, N., Satoh, K. and Sugiura, M.
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Journal Title
Biochim. Biophys. Acta (Bioenergetics) 1767
Pages: 1269-1275
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[Journal Article] Ycfl2 is a core subunit in photosystem II complex2007
Author(s)
Kashino, Y., Ikeda, Y., Ban, A., Inoue-Kashino, N., Satoh, K.and Sugiura, M.
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Journal Title
Biochim.Biophys.Acta(Bioenergetics) 1767
Pages: 1269-1275
Related Report
Peer Reviewed
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[Presentation] The water splitting enzyme: recent advances2008
Author(s)
A., Boussac, N., Ishida, T.-L., Lai, A.W,. Rutherford, F., Rappaport, Y., Pushkar, M., Sugiura
Organizer
第46回日本生物物理学会シンポジウム-光合成の新たなる潮流-
Place of Presentation
福岡国際会議場
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