Elucidation of cooperative binding of oxygen to hemoglobin from the standpoint of the electronic theory of the heme cofactor
Project/Area Number |
23655151
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Chemistry related to living body
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Research Institution | University of Tsukuba |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
TAI Hulin 筑波大学, 数理物質系, 特任助教 (40512554)
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Project Period (FY) |
2011 – 2012
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Project Status |
Completed (Fiscal Year 2012)
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Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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Keywords | ヘムタンパク質 / ヘム電子構造 / 計算化学 / NMR / 機能解析 / π-π相互作用 タンパク質の高次構造 / マリケン電荷 / π-π相互作用 / タンパク質の高次構造 / NMR |
Research Abstract |
Hemoglobin is the heme-containing oxygen-transport protein in the red blood cell. Highly efficient oxygen-transport of hemoglobin is achieved by cooperative oxygen binding properties of the protein. In this study, molecular mechanism responsible for the cooperative oxygen binding of the protein has been investigated from the standpoint of a novel theory, i.e., the electron theory of the heme cofactor. The study revealed that electronic interaction among the heme π-system, the heme iron, and the F-bound histidine plays a crucial role in control of the cooperative oxygen binding of the protein.
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Report
(3 results)
Research Products
(69 results)
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[Journal Article] Relationship between the Electron Density of the Heme Fe Atom and the Vibrational Frequencies of the Fe-Bound Carbon Monoxide in Myoglobin2013
Author(s)
R. Nishimura, T. Shibata, H. Tai, I. Ishigami, T. Ogura, S. Nagao, T. Matsuo, S. Hirota, K. Imai, S. Neya, A. Suzuki, and Y, Yamamoto
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Journal Title
Inorg. Chem.
Volume: 52
Issue: 6
Pages: 3349-3355
DOI
Related Report
Peer Reviewed
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[Journal Article] Relationship between Oxygen Affinity and Autoxidation of Myoglobin2012
Author(s)
T. Shibata, D. Matsumoto, R. Nishimura, H. Tai, A. Matsuoka, S. Nagao, T. Matsuo, S. Hirota, K. Imai, S. Neya, A. Suzuki, and Y. Yamamoto
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Journal Title
Inorg. Chem.
Volume: 51
Issue: 21
Pages: 11955-11960
DOI
Related Report
Peer Reviewed
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[Presentation] Regulation of Functional Properties of Myoglobin through Tuning Heme Electronic Structure2012
Author(s)
Y. Yamamoto, R. Nishimura, T. Shibata, H. Tai, K. Nishiyama, D. Matsumoto, M. Fukaya, S. Nagao, T. Matsuo, S. Hirota,I. Ishigami, T. Ogura, S. Neya,O. Shoji, Y. Watanabe, K. Imai and A. Suzuki
Organizer
Seventh International Conference on Porphyrins and Phalocyanines (ICPP-7)
Place of Presentation
Jeju International Conference Center, Jeju, Korea.
Year and Date
2012-07-06
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[Presentation] Characterization of Electronic Structure of Heme Active Site in Carbonmonoxy Form of Sperm Whale Myoglobin2012
Author(s)
Y. Yamamoto, T. Shibata, R. Nishimura, M. Fukaya, H. Tai, T. Matsuo, S. Hirota, A. Suzuki, I. Ishigami, T. Ogura, and S. Neya
Organizer
筑波大学戦略イニシアティブ 機能性物質創製研究拠点 第2回国際シンポジウム「金属錯体化学の最前線」
Place of Presentation
筑波大学(つくば市)
Related Report
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[Presentation] Molecular mechanism responsible for the control of functional properties of myoglobin2011
Author(s)
T. Shibata, R. Nishimura, M. Fukaya, S. Nagatomo, H. Tai, S. Nagao, T. Matsuo, S. Hirota, I. Ishigami, T. Ogura,K. Imai, A. Suzuki, and Y. Yamamoto
Organizer
第3回ジォルジアン湾生物無機化学国際会議(CanBIC-3)(招待講演)
Place of Presentation
ストッキー センター(パリーサウンド(カナダ))
Related Report
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[Presentation] Toward complete understanding of myoglobin function2011
Author(s)
Y. Yamamoto, R. Nishimura, T. Shibata, M. Fukaya, H. Tai, S. Nagatomo, S. Nagao, T. Matsuo, S. Hirota, I. Ishigami, T. Ogura, O. Shoji, Y. Watanabe, S. Neya, K. Imai, and A. Suzuki
Organizer
第15回生物無機化学国際会議(ICBIC15)
Place of Presentation
ブリティッシュコロンビア大学(バンクーバー(カナダ))
Related Report
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[Presentation] Relationship between 13C NMR shift of Fe-bound CO and electron density of heme2011
Author(s)
T. Shibata, R. Nishimura, M. Fukaya, H. Tai, T. Matsuo, S. Hirota, A. Suzuki, I. Ishigami, T. Ogura, S. Neya, and Y. Yamamoto
Organizer
第50回NMR討論会 記念国際シンポジウム
Place of Presentation
横浜港大さん橋ホール(横浜市)
Related Report
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[Presentation] Relationship between 13C NMR Shift of Fe-bound CO and Electronic Structure of Heme Active Site in Myoglobin2011
Author(s)
T. Shibata, R. Nishimura, M. Fukaya, H. Tai, T. Matsuo, S. Hirota, A. Suzuki, I. Ishigami, T. Ogura, S. Neya, and Y. Yamamoto
Organizer
筑波大学戦略イニシアティブ 機能性物質創製研究拠点 第1回国際シンポジウム「典型元素化学とπ電子化学のハイブリッド化」
Place of Presentation
筑波大学(つくば市)
Related Report
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