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Analysis of the electron transfer reaction involved in quinones in the homodimeric photosynthetic reaction center

Research Project

Project/Area Number 18K06153
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 43040:Biophysics-related
Research InstitutionOsaka University

Principal Investigator

Oh-oka Hirozo  大阪大学, 理学研究科, 准教授 (30201966)

Co-Investigator(Kenkyū-buntansha) 熊崎 茂一  京都大学, 理学研究科, 准教授 (40293401)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords光合成 / 反応中心 / ヘリオバクテリア / 緑色イオウ細菌 / エネルギー移動 / 電子移動 / X線結晶構造解析 / 一分子分光 / 1分子分光 / 蛍光スペクトル / シトクロム複合体 / 鉄硫黄タンパク質 / キノン / FTIR / 超高速分光 / タイプ1 / ホモダイマー
Outline of Final Research Achievements

The 3D structure of heliobacterial reaction center has successfully been determined at a high resolution, which has clearly demonstrated the existence of a quinone molecule within it. The research paper is now preparing for a publication. On the other hand, the kinetics of excitation energy transfer and charge separation process in the photosynthetic reaction center of Heliobacterium modesticaldum were investigated with femtosecond transient absorption spectroscopy at room temperature. A global fit analysis revealed that the 20 ps component of the bleaching QY band at 816 nm would derive from the excited red-BChl gs or might be due to the exciton coupling between P800 and a monomeric accessory BChl g.

Academic Significance and Societal Importance of the Research Achievements

緑色イオウ細菌、へリオバクテリアの反応中心は酸素に対して不安定であるために標品調製が難しく、長らく構造解析に基づく機能解析には至らなかった。本研究では、へリオバクテリア反応中心の構造解析を、キノンを保持したまま解明できたことは非常に意義深い。またフェムト秒ポンプ・プローブ分光法を用い、へリオバクテリア反応中心の励起エネルギー移動から初期電荷分離形成過程までを追跡し、最長波長成分(red-BChls)を見いだした。始原型反応中心であるhRCの光エネルギー変換機構を理解する上で大変意義のある成果であり、今後、詳細な構造機能相関の解明に大いに貢献するものと期待される。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (37 results)

All 2022 2021 2020 2019 2018 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (27 results) (of which Int'l Joint Research: 6 results,  Invited: 1 results) Book (3 results) Remarks (3 results)

  • [Journal Article] Energy transfer fluctuation observed by single-molecule spectroscopy of red-shifted bacteriochlorophyll in the homodimeric photosynthetic reaction center2022

    • Author(s)
      Kondo Toru、Mutoh Risa、Arai Shun、Kurisu Genji、Oh-oka Hirozo、Fujiyoshi Satoru、Matsushita Michio
    • Journal Title

      The Journal of Chemical Physics

      Volume: 156 Issue: 10 Pages: 105102-105102

    • DOI

      10.1063/5.0077290

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Energy transfer and primary charge separation upon selective femtosecond excitation at 810 nm in the reaction center complex from Heliobacterium modesticaldum2020

    • Author(s)
      Kojima Risa、Yamamoto Hayata、Azai Chihiro、Uragami Chiasa、Hashimoto Hideki、Kosumi Daisuke、Oh-oka Hirozo
    • Journal Title

      Journal of Photochemistry and Photobiology A: Chemistry

      Volume: 401 Pages: 112758-112758

    • DOI

      10.1016/j.jphotochem.2020.112758

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Green Bacteria ? Energy Transfer and Electron Transport2020

    • Author(s)
      Oh-oka Hirozo、Harada Jiro、Azai Chihiro.
    • Journal Title

      Reference Module in Life Sciences

      Volume: 1 Pages: 1-19

    • DOI

      10.1016/b978-0-12-819460-7.00031-1

    • ISBN
      9780128220405
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Cryogenic Single-Molecule Spectroscopy of the Primary Electron Acceptor in Photosynthetic Reaction Center2020

    • Author(s)
      T. Kondo, R. Mutoh, H. Tabe, G. Kurisu, H. Oh-oka, S. Fujiyoshi, and M. Matsushita
    • Journal Title

      J. Phys. Chem. Lett.

      Volume: - Issue: 10 Pages: 3980-3986

    • DOI

      10.1021/acs.jpclett.0c00891

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 嫌気性緑色硫黄細菌におけるRieske/cytb複合体とc型シトクロムとの構造機能相関の解析2022

    • Author(s)
      岸本拓、浅井智広、武藤梨沙、田中秀明、宮ノ入洋平、栗栖源嗣、大岡宏造
    • Organizer
      第63回日本植物生理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ヘリオバクテリア光合成反応中心におけるカロテノイド励起後のエネルギー移動反応解析2022

    • Author(s)
      小島理沙、野原大暉、浅井智広、小澄大輔、大岡宏造
    • Organizer
      第63回日本植物生理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 細菌と植物のもつ多様な光合成I 型反応中心の光捕集機能に関する比較2021

    • Author(s)
      木村明洋、鬼頭宏任、浜口祐、米倉功治、川上恵典、菓子野康浩、浅井智広、大岡宏造、伊藤繁
    • Organizer
      量子生命科学会第3回大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Structure-function relationships between the Rieske/cytb complex and c-type cytochromes in anaerobic photosynthetic green sulfur bacteria2021

    • Author(s)
      H. Kishimoto, C. Azai, R. Mutoh, H. Tanaka, Y. Miyanoiri, G. Kurisu, H. Oh-oka
    • Organizer
      第59回日本生物物理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 緑色硫黄細菌におけるRieske/cytb複合体の嫌気的精製とc型シトクロムとの相互作用解析2021

    • Author(s)
      岸本拓、長岡孝浩、浅井智広、武藤梨沙、田中秀明、宮ノ入洋平、栗栖源嗣、大岡宏造
    • Organizer
      第62回日本植物生理学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Studies on interaction between Rieske/cytb complex and c-type cytochromes in strictly anaerobic photosynthetic green sulfur bacteria2020

    • Author(s)
      H. Kishimoto, T. Nagaoka, C. Azai, R. Mutoh, H. Tanaka, Y. Miyanoiri,G. Kurisu and H. Oh-oka
    • Organizer
      第58回日本生物物理学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Studies on excitation energy transfer and primary charge separation in the reaction center complex from Heliobacterium modesticaldum2020

    • Author(s)
      R. Kojima, H. Yamamoto, C. Azai, C. Uragami, H. Hashimoto,D. Kosumi, H. Oh-oka
    • Organizer
      第58回日本生物物理学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 緑色硫黄細菌におけるRieske/cytb複合体の精製検討とcyt c-556との相互作用部位の同定2020

    • Author(s)
      岸本拓、長岡孝浩、浅井智広、武藤梨沙、田中秀明、宮ノ入洋平、栗栖源嗣、大岡宏造
    • Organizer
      第61回日本植物生理学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] Heliobacterium modesticaldumの反応中心におけるエネルギーおよび電子移動機構の時間分解分光測定2020

    • Author(s)
      小島理沙、山元颯太、浅井智広、小澄大輔、大岡宏造
    • Organizer
      第61回日本植物生理学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] Time-resolved spectroscopy of electron transfer processes upon selective excitation in the reaction center complex from Heliobacterium modesticaldum2019

    • Author(s)
      R. Kojima, C. Azai, S. Ando, T. Nakaniwa, H. Tanaka, G. Kurisu, C. Uragami, H. Hashimoto, D. Kosumi, H. Oh-oka
    • Organizer
      International Conference on Artificial Photosynthesis 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Structural Analysis of the homodimeric photosynthetic reaction center with bound quinone from Heliobacterium modesticaldum2019

    • Author(s)
      T. Nakaniwa, R. Mutoh, K. Fushimi, T. Kondo, C. Azai, S. Itoh, T. Mizoguchi, H. Tamiaki, H. Tanaka, H. Oh-oka, G. Kurisu
    • Organizer
      International Symposium on Diffraction Structural Biology 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Structural Analysis of the homodimeric photosynthetic reaction center from Heliobacterium modesticaldum2019

    • Author(s)
      T. Nakaniwa, R. Mutoh, K. Fushimi, T. Kondo, C. Azai, S. Itoh, T. Mizoguchi, H. Tamiaki, H. Tanaka, H. Oh-oka, G. Kurisu
    • Organizer
      1st Japan-US Binational Semninar 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Structure-function relationships among the soluble domain of the Rieske protein and cytochromes in green sulfur bacteria2019

    • Author(s)
      H. Kishimoto, T. Yamamoto, R. Mutoh, H. Tanaka, G. Kurisu, H. Oh-oka
    • Organizer
      1st Japan-US Binational Semninar 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Isolation of the Rieske/cytochrome b complex from green sulfur bacteria and interaction of the Rieske protein with cytochrome c-5562019

    • Author(s)
      H. Kishimoto, T. Nagaoka, C. Azai, R. Mutoh, H. Tanaka, Y. Miyanoiri, G. Kurisu and H. Oh-oka
    • Organizer
      第57回日本生物物理学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] Improved preparation of the reaction center complex from the green sulfur bacterium Chlorobaculum tepidum2019

    • Author(s)
      K. Wada, C. Azai, T. Nakaniwa, G. Kurisu and H. Oh-oka
    • Organizer
      第57回日本生物物理学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] Heliobacterium modesticaldum光合成反応中心への選択励起における励起エネルギー移動および電子移動反応2019

    • Author(s)
      小島理沙、山元颯太、浅井智広、小澄大輔、大岡宏造
    • Organizer
      第30回光物性研究会
    • Related Report
      2019 Research-status Report
  • [Presentation] ヘリオバクテリア膜の光駆動キノン還元反応をFTIR分光法により検出する試み2018

    • Author(s)
      小島理沙、岸利華子、木村行宏、大岡宏造
    • Organizer
      第9回日本光合成学会年会および公開シンポジウム
    • Related Report
      2018 Research-status Report
  • [Presentation] 緑色硫黄細菌のRieske/cyt b型シトクロム複合体の可溶化・精製の試み2018

    • Author(s)
      岸本拓、浅井智広、武藤梨沙、田中秀明、栗栖源嗣、大岡宏造
    • Organizer
      第9回日本光合成学会年会および公開シンポジウム
    • Related Report
      2018 Research-status Report
  • [Presentation] ヘリオバクテリア由来タイプ1光合成反応中心の構造機能解析2018

    • Author(s)
      安藤俊介、仲庭哲津子、小島理沙、伏見こころ、田中秀明、大岡宏造、栗栖源嗣
    • Organizer
      第18回日本蛋白質科学会年会
    • Related Report
      2018 Research-status Report
  • [Presentation] Solubilization and purification of the Rieske/cytochrome b complex in green sulfur bacteria2018

    • Author(s)
      H. Kishimoto, C. Azai, R. Mutoh, H. Tanaka, G. Kurisu and H. Oh-oka
    • Organizer
      第56回日本生物物理学会年会
    • Related Report
      2018 Research-status Report
  • [Presentation] The orientation of menaquinone in the heliobacterial reaction center analyzed with the EPR spectroscopy2018

    • Author(s)
      T. Kondo, C. Azai, S. Itoh and H. Oh-oka
    • Organizer
      第56回日本生物物理学会年会
    • Related Report
      2018 Research-status Report
  • [Presentation] X-ray structure of the type-I reaction center from Heliobacterium modesticaldum at 3.2 angstrom2018

    • Author(s)
      T. Nakaniwa, R. Mutoh, K. Fushimi, A. Yasuda, T. Mizoguchi, H. Tamiaki, C. Azai, H. Tanaka, S. Itoh, H. Oh-oka and G. Kurisu
    • Organizer
      第56回日本生物物理学会年会
    • Related Report
      2018 Research-status Report
  • [Presentation] 多孔質ガラス板にcyt c6/光化学系 I/白金ナノ粒子複合体を固定化した光誘起水素発生実験2018

    • Author(s)
      平野誠人, 野地智康, 川上恵典, 神哲郎, 近藤政晴, 大岡宏造, 神谷信夫
    • Organizer
      第56回日本生物物理学会年会
    • Related Report
      2018 Research-status Report
  • [Presentation] へリオバクテリアが持つタイプ1型光合成反応中心のX線結晶構造解析2018

    • Author(s)
      伏見こころ,仲庭哲津子,武藤梨沙,安田亜矢,溝口正,民秋均,浅井智広,田中秀明,伊藤繁,大岡宏造, 栗栖源嗣
    • Organizer
      日本結晶学会2018年度年会
    • Related Report
      2018 Research-status Report
  • [Presentation] Menaquinone (MQ) in the reaction center of Heliobacterium modesticaldum studied by ESP-EPR signal of P800+MQ-: its implication in the 3D structure2018

    • Author(s)
      H. Oh-oka, T. Kondo, C. Azai, T. Nakaniwa, H. Tanaka, G. Kurisu and S. Itoh
    • Organizer
      16th International Symposium on Phototrophic Prokaryotes
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] The electron acceptor menaquinone (MQ) in heliobacterial type-1 reaction center: the detection of the ESP-EPR signal of P800+MQ- state and its interpretation in the 3D structure2018

    • Author(s)
      H. Oh-oka, T. Kondo, C. Azai, S. Itoh, T. Nakaniwa, H. Tanaka, G. Kurisu
    • Organizer
      2018 International Symposium of Innovative Research and Graduate Education in Biomedical Sciences
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 緑色硫黄細菌のRieske/cytb複合体とc型シトクロムの相互作用解析2018

    • Author(s)
      岸本拓、浅井智広、武藤梨沙、田中秀明、宮ノ入洋平、栗栖源嗣、大岡宏造
    • Organizer
      第60回日本植物生理学会年会
    • Related Report
      2018 Research-status Report
  • [Book] 光合成2021

    • Author(s)
      日本光合成学会
    • Total Pages
      224
    • Publisher
      朝倉書店
    • ISBN
      9784254171761
    • Related Report
      2021 Annual Research Report
  • [Book] 膜タンパク質工学ハンドブック 第3編 第7章「光合成電子伝達鎖における膜結合型シトクロム」2020

    • Author(s)
      岸本拓、大岡宏造(分担執筆)
    • Publisher
      株式会社エヌ・ティー・エス
    • ISBN
      9784860435370
    • Related Report
      2019 Research-status Report
  • [Book] 膜タンパク質工学ハンドブック「光合成電子伝達鎖における膜結合型シトクロムc」2019

    • Author(s)
      岸本拓、大岡宏造(分担執筆)
    • Publisher
      株式会社エヌ・ティー・エス
    • Related Report
      2018 Research-status Report
  • [Remarks] 光合成反応の分子機構

    • URL

      https://www.bio.sci.osaka-u.ac.jp/~ohoka/index.html

    • Related Report
      2021 Annual Research Report
  • [Remarks] 光合成反応の分子機構

    • URL

      http://www.bio.sci.osaka-u.ac.jp/~ohoka/index.html

    • Related Report
      2020 Research-status Report 2019 Research-status Report
  • [Remarks] 光合成反応の分子機構

    • URL

      http://www.bio.sci.osaka-u.ac.jp/~ohoka/publications.html

    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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