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Rational Design of Artificial Metalloenzymes toward On-demand Functionalization of C-H Bond

Research Project

Project/Area Number 20H02755
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 34010:Inorganic/coordination chemistry-related
Research InstitutionOsaka University

Principal Investigator

Oohora Koji  大阪大学, 大学院工学研究科, 准教授 (10631202)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2022: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2021: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2020: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
Keywords再構成ミオグロビン / 水酸化 / アミノ化 / 分子動力学計算 / 合理的設計 / 人工酵素 / 生体触媒 / ヘム / タンパク質 / 物質変換
Outline of Research at the Start

有用な物質を生み出す環境調和型の自在な物質変換を実現するために、立体選択的かつ位置選択的に反応に不活性な基質を官能基化する触媒の開発が求められている。本研究では、高活性な金属錯体とタンパク質マトリクスを組み合わせ、高活性かつ高選択性を達成する人工金属酵素を合理的に設計し、有用な人工金属酵素を開発する。 具体的には、疎水性空孔を有するタンパク質に、高い触媒能を示す活性中心となる金属錯体を挿入し、さらにタンパク質を遺伝子工学的に最適化することで、高活性で、高い立体・位置選択的にC-H結合を官能基化する人工金属酵素をめざす。また反応メカニズムや構造から詳細を明らかにし、設計法を確立する。

Outline of Final Research Achievements

In this study, we prepared an artificial metalloenzyme by substituting the active center heme in myoglobin, an oxygen-storing heme protein, with an artificial metal complex, and evaluated its catalytic activity. It was found to be useful for hydroxylation and amination of carbon-hydrogen bonds. Additionally, the introduction of mutations into the protein improved selectivity and activity. Notably, we established a method for designing artificial metalloenzymes using molecular dynamics calculations toward enantioselective C-H hydroxylation. In the future, this could indicate new directions for substance transformation reactions that contribute to the realization of a sustainable society.

Academic Significance and Societal Importance of the Research Achievements

有用な化学物質を生産するためには優れた触媒が必要になる。しかしながら現代の生産プロセスでは様々な多段階合成とともに毒性の高い化学物質を経由する場合が多い。本研究では、次世代型の物質変換として金属イオンを含むタンパク質から構成される人工金属酵素を合理的に設計し、その性能を評価した。将来的には、必要な化学反応を水中、常圧、常温の温和な条件で自在な物質生産を担うコア技術を確立するための知見を得ることができた。

Report

(4 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (26 results)

All 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (2 results) Journal Article (13 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 13 results,  Open Access: 6 results) Presentation (8 results) (of which Int'l Joint Research: 3 results,  Invited: 5 results) Remarks (3 results)

  • [Int'l Joint Research] University of Groningen(オランダ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] RWTH Aachen(ドイツ)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Intramolecular C-H bond amination catalyzed by myoglobin reconstituted with iron porphycene2024

    • Author(s)
      Kagawa Yoshiyuki、Oohora Koji、Hayashi Takashi
    • Journal Title

      Journal of Inorganic Biochemistry

      Volume: 252 Pages: 112459-112459

    • DOI

      10.1016/j.jinorgbio.2023.112459

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Rational design of an artificial ethylbenzene hydroxylase using a molecular dynamics simulation to enhance enantioselectivity2023

    • Author(s)
      Oohora Koji、Kagawa Yoshiyuki、Nishiura Takako、Mizohata Eiichi、Schwaneberg Ulrich、Hayashi Takashi
    • Journal Title

      Chemistry Letters

      Volume: 53 Issue: 2

    • DOI

      10.1093/chemle/upad042

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Elasticity tuning of a hexameric hemoprotein-based hydrogel by mutation of its protein building block2023

    • Author(s)
      Oohora Koji、Kageyama Kazuki、Hidaka Yuri、Hayashi Takashi
    • Journal Title

      Chemistry Letters

      Volume: 53 Issue: 2

    • DOI

      10.1093/chemle/upad052

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mechanochemical responses in β-lactoglobulin-based hydrogels: protein unfolding and chemical modification through compression2023

    • Author(s)
      Oohora Koji、Kageyama Kazuki、Innami Hiroki、Hayashi Takashi
    • Journal Title

      Chemistry Letters

      Volume: 53 Issue: 2

    • DOI

      10.1093/chemle/upad043

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A polyacrylamide gel containing an engineered hexameric hemoprotein as a cross-linking unit toward redox-responsive materials2023

    • Author(s)
      Kageyama Kazuki、Oohora Koji、Hayashi Takashi
    • Journal Title

      RSC Advances

      Volume: 13 Issue: 49 Pages: 34610-34617

    • DOI

      10.1039/d3ra05897b

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ethylbenzene oxidation by a hybrid catalysis system of reconstituted myoglobin and silica-protected PdAu nanoparticles under a hydrogen-oxygen mixed atmosphere2023

    • Author(s)
      Oohora Koji、Kagawa Yoshiyuki、Kuwahara Yasutaka、Yamashita Hiromi、Hayashi Takashi
    • Journal Title

      Journal of Porphyrins and Phthalocyanines

      Volume: 27 Issue: 07n10 Pages: 1313-1319

    • DOI

      10.1142/s1088424623500906

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Focusing on a nickel hydrocorphinoid in a protein matrix: methane generation by methyl-coenzyme M reductase with F430 cofactor and its models2022

    • Author(s)
      Miyazaki Yuta、Oohora Koji、Hayashi Takashi
    • Journal Title

      Chemical Society Reviews

      Volume: 51 Issue: 5 Pages: 1629-1639

    • DOI

      10.1039/d1cs00840d

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] DNA‐Mediated Protein Shuttling between Coacervate‐Based Artificial Cells2022

    • Author(s)
      Mashima Tsuyoshi、Stevendaal Marleen H. M. E.、Cornelissens Femke R. A.、Mason Alexander F.、Rosier Bas J. H. M.、Altenburg Wiggert J.、Oohora Koji、Hirayama Shota、Hayashi Takashi、Hest Jan C. M.、Brunsveld Luc
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 61 Issue: 17

    • DOI

      10.1002/anie.202115041

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Dynamic Protease Activation on a Multimeric Synthetic Protein Scaffold via Adaptable DNA‐Based Recruitment Domains2021

    • Author(s)
      Mashima Tsuyoshi、Rosier Bas J. H. M.、Oohora Koji、Greef Tom F. A.、Hayashi Takashi、Brunsveld Luc
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 60 Issue: 20 Pages: 11262-11266

    • DOI

      10.1002/anie.202102160

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Functional Myoglobin Model Composed of a Strapped Porphyrin/Cyclodextrin Supramolecular Complex with an Overhanging COOH That Increases O<sub>2</sub>/CO Binding Selectivity in Aqueous Solution2021

    • Author(s)
      Mao Qiyue、Das Pradip K.、Le Gac St?phane、Boitrel Bernard、Dorcet Vincent、Oohora Koji、Hayashi Takashi、Kitagishi Hiroaki
    • Journal Title

      Inorganic Chemistry

      Volume: 60 Issue: 16 Pages: 12392-12404

    • DOI

      10.1021/acs.inorgchem.1c01628

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Myoglobins engineered with artificial cofactors serve as artificial metalloenzymes and models of natural enzymes2021

    • Author(s)
      Oohora Koji、Hayashi Takashi
    • Journal Title

      Dalton Transactions

      Volume: 50 Issue: 6 Pages: 1940-1949

    • DOI

      10.1039/d0dt03597a

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Supramolecular Assembly of Hemoproteins Formed in a Star-Shaped Structure via Heme?Heme Pocket Interactions2021

    • Author(s)
      Soon Julian Wong、Oohora Koji、Hirayama Shota、Hayashi Takashi
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 22 Issue: 3 Pages: 1012-1012

    • DOI

      10.3390/ijms22031012

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Methane Generation and Reductive Debromination of Benzylic Position by Reconstituted Myoglobin Containing Nickel Tetradehydrocorrin as a Model of Methyl-coenzyme M Reductase2020

    • Author(s)
      Miyazaki Yuta、Oohora Koji、Hayashi Takashi
    • Journal Title

      Inorganic Chemistry

      Volume: 59 Issue: 17 Pages: 11995-12004

    • DOI

      10.1021/acs.inorgchem.0c00901

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] Redox Tuning of Myoglobin by Cofactor Replacement to Enhance Cyclopropanation Reactivity2024

    • Author(s)
      香川佳之、大洞 光司、氷見山 幹基、鈴木 秋弘、林 高史
    • Organizer
      日本化学会第104春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] C-H 結合アミノ化反応を促進する鉄ポルフィセン錯体含有再構成ヘムタンパク質の開発2023

    • Author(s)
      香川佳之、大洞 光司、水口 賢司、林 高史
    • Organizer
      第49回生体分子科学討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Hemoprotein Assembly Containing Porphyrinoid Photosensitizers Toward an Artificial Light- Harvesting System2023

    • Author(s)
      Koji Oohora
    • Organizer
      15th International Conference on Tetrapyrrole Photoreceptors in Photosynthetic Organisms
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 鉄ポルフィセン錯体を含む再構成ヘムタンパク質によるC-H結合アミノ化触媒反応2023

    • Author(s)
      大洞 光司、香川佳之、林 高史
    • Organizer
      第56回酸化反応討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Electrochemical CO2 Reduction and H2 Evolution by Cobalt Porphyrinoids2021

    • Author(s)
      Koji Oohora, Takashi Hayashi
    • Organizer
      11th International Conference on Porphyrins and Phthalocyanines
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Hemoprotein engineered with manganese porphycene toward an artificial metalloenzyme catalyzing C-H bond hydroxylation2021

    • Author(s)
      Koji Oohora
    • Organizer
      Pcifichem2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Engineered Hemoproteins toward Artificial Metalloenzymes and Metalloprotein-based Nanomaterials2021

    • Author(s)
      大洞 光司
    • Organizer
      錯体化学会第71回討論会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] ヘムタンパク質を基盤とする人工金属酵素と機能性材料の開発2021

    • Author(s)
      大洞光司
    • Organizer
      日本化学会第101回春季年会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Remarks]

    • URL

      http://www.applied-bioinorganic.jp/jp/profile/oohora/

    • Related Report
      2022 Annual Research Report
  • [Remarks]

    • URL

      http://www.applied-bioinorganic.jp/jp/profile/oohora

    • Related Report
      2021 Annual Research Report
  • [Remarks]

    • URL

      http://www.applied-bioinorganic.jp/jp/profile/oohora/

    • Related Report
      2020 Annual Research Report

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Published: 2020-04-28   Modified: 2025-01-30  

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