Structure determination of heme oxygenase bound to its weakly interacted protein
Project/Area Number |
25840026
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Structural biochemistry
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Research Institution | Kurume University |
Principal Investigator |
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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Keywords | X線結晶構造解析 / 電子移動 / 酸化還元複合体 / 電子伝達 / 分子間相互作用 / 酵素 / 電子伝達反応 / タンパク質 / X線小角散乱 / タンパク質間相互作用 |
Outline of Final Research Achievements |
Heme oxygenase (HO) is the major enzyme involved in heme degradation utilizing the redox equivalents supplied from NADPH-cytochrome P450 reductase (CPR). In this study, we found that the mutated CPR (ΔTGEE) is strongly interacted with heme-HO complex. We could determine the crystal structure of ΔTGEE-heme-HO complex at 4.3Å resolution. Based on the structure, the mechanism of the electron transfer from CPR to heme-HO complex accompanied with the large domain motion of CPR has been proposed. The proposed mechanism of the electron transfer was supported by the results from small-angle X-ray scattering, cross-linking, and ultra-centrifuge techniques.
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Report
(4 results)
Research Products
(60 results)
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[Journal Article] Insights into the Proton Transfer Mechanism of a Bilin Reductase PcyA Following Neutron Crystallography.2015
Author(s)
Unno, M., Ishikawa-Suto, K., Kusaka, K., Tamada, T., Hagiwara, Y., Sugishima, M., Wada, K., Yamada, T., Tomoyori, K., Hosoya, T., Tanaka, I., Niimura, N, Kuroki, R., Inaka, K., Ishihara, M., Fukuyama, K.
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Journal Title
J. Am. Chem. Soc.
Volume: in press
Issue: 16
Pages: 5452-5460
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Presentation] X 線結晶構造解析によるヘム代謝酵素複合体の立体構造解明2014
Author(s)
杉島正一, 佐藤秀明, 東元祐一郎, 原田二朗, 平 順一, 坂本 寛, 安永卓生, 和田 啓, 福山恵一, 山本 健, 野口正人
Organizer
立体視プロジェクションシステムを使った分子科学研究講演会
Place of Presentation
九州工業大学飯塚キャンパス(福岡県飯塚市)
Year and Date
2014-12-05 – 2014-12-06
Related Report
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[Presentation] Neutron Structure of Phycocyanobilin:oxidoreductase Complexed with Biliverdin2014
Author(s)
Masaki Unno, Kumiko Ishikawa-Suto, Katsuhiro Kusaka, Taro Tamada, Yoshinori Hagiwara, Masakazu Sugishima, Kei Wada, Taro Yamada, Makiko Ishihara, Keiichi Fukuyama
Organizer
23rd congress and general assembly of the international union of crystallography
Place of Presentation
Palais des Congres de Montreal (Montreal, Quebec, Canada)
Year and Date
2014-08-05 – 2014-08-12
Related Report
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