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An biohybrid catalyst containg an asymmetric coordination sphere embedded within a beta barrel protein

Publicly Offered Research

Project AreaCoordination Asymmetry: Design of Asymmetric Coordination Sphere and Anisotropic Assembly for the Creation of Functional Molecules
Project/Area Number 17H05370
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionOsaka University

Principal Investigator

小野田 晃  大阪大学, 工学研究科, 准教授 (60366424)

Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2018: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2017: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywordsバイオハイブリッド触媒 / 人工金属酵素 / 指向性進化工学 / ロジウム錯体 / ピレン / 金属錯体 / タンパク質 / アシンメトリック配位圏 / ベータバレルタンパク質 / C-H結合活性化
Outline of Annual Research Achievements

本研究では、多彩な反応性を示す金属錯体触媒と、精緻な反応場を提供するバレル型タンパク質の融合により、アシンメトリー配位圏を有するバイオハイブリッド触媒を構築し、従来の金属錯体や酵素にはない新たな位置選択性や官能基選択性を付与した合成反応の開拓に取り組んだ。具体的には、反応性の高いRh錯体を固定化したバイオハイブリッド触媒を活用し、位置選択的な炭素-炭素結合形成反応、また、バレル空孔内に芳香環拡張型のアシンメトリー配位圏を構築し、不斉Diels-Alder 反応を実証した。タンパク質には、強固なベータバレル構造を有するニトロバインディンの疎水空孔を活用して、様々な金属錯体触媒を共有結合により残基選択的に固定化したバイオハイブリッド触媒を開発してきた成果を踏まえて、ペンタメチルシクロペンタジエニル配位子をもつRh(III)錯体を選択し、マレイミドを導入した錯体とニトロバインディンの疎水空孔内のシステインを共有結合的に連結可能な手法を確立した。ジチオリン酸配位子で空配位座を保護したRh(III)錯体をタンパク質に連結後、硝酸銀の添加により、Rh(III)錯体を活性化する手法である。このバイオハイブリッド触媒は、硝酸銀存在下、フェニルオキシム及びアルキンの付加環化反応において触媒活性を示すことを明らかにした。ニトロバインディンの疎水性空孔にグルタミン酸を導入することによって、触媒活性が向上することを見出しており、Rh(III)錯体近傍のアシンメトリー空間の構築を成功した。

Research Progress Status

平成30年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

平成30年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (14 results)

All 2019 2018 Other

All Int'l Joint Research (1 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results) Presentation (9 results) (of which Int'l Joint Research: 2 results,  Invited: 3 results) Remarks (2 results)

  • [Int'l Joint Research] RWTH Aachen University(ドイツ)

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Hemoproteins Reconstituted with Artificial Metal Complexes as Biohybrid Catalysts2019

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

      Accounts of Chemical Research

      Volume: 52 Issue: 4 Pages: 945-954

    • DOI

      10.1021/acs.accounts.8b00676

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cavity Size Engineering of a β-Barrel Protein Generates Efficient Biohybrid Catalysts for Olefin Metathesis2018

    • Author(s)
      Grimm Alexander R.、Sauer Daniel F.、Davari Mehdi D.、Zhu Leilei、Bocola Marco、Kato Shunsuke、Onoda Akira、Hayashi Takashi、Okuda Jun、Schwaneberg Ulrich
    • Journal Title

      ACS Catalysis

      Volume: 8 Issue: 4 Pages: 3358-3364

    • DOI

      10.1021/acscatal.7b03652

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Designing Biohybrid Catalyst and Biohybrid Materials: Covalent Protein Modification Case Study2019

    • Author(s)
      Akira Onoda
    • Organizer
      Designer Biology
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Biohybrid Catalysts Harboring a Synthetic Metal Complex within a Barrel Protein2019

    • Author(s)
      Akira Onoda
    • Organizer
      12th China-Japan Joint Symposium on Metal Cluster Compounds
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Construction of Cp*Rh(III)-linked Biohybrid Catalyst for the synthesis of isoquinolines2018

    • Author(s)
      Shunsuke Kato, Alexander Grimm, Akira Onoda, Ulrich Schwaneberg, Takashi Hayashi
    • Organizer
      Aachen Protein Engineering Symposium (AcES) 2018
    • Related Report
      2017 Annual Research Report
  • [Presentation] Tailored Protein Assemblies for Hybrid Biomaterials2018

    • Author(s)
      Akira Onoda
    • Organizer
      Aachen Protein Engineering Symposium (AcES) 2018
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Biohybrid Catalysts Harboring a Synthetic Metal Complex within a Barrel Protein2018

    • Author(s)
      Akira Onoda
    • Organizer
      Biotechnology and Chemistry for Green Growth 2018
    • Related Report
      2017 Annual Research Report
  • [Presentation] Biotechnology and Chemistry for Green Growth 2018: “Synthesis of Isoquinoline Derivatives via C-H Bond Activation Catalyzed by Cp*Rh(III)-linked Biohybrid Catalysts.2018

    • Author(s)
      Shunsuke Kato, Alexander Grimm, Akira Onoda, Ulrich Schwaneberg, Takashi Hayashi
    • Organizer
      Biotechnology and Chemistry for Green Growth 2018
    • Related Report
      2017 Annual Research Report
  • [Presentation] Isoquinoline Synthesis from Asymmetric Alkyne Using Cp*Rh Complex-Linked Biohybrid Catalyst2018

    • Author(s)
      橋爪拓幸、加藤俊介、小野田晃、林高史
    • Organizer
      日本化学会第99春季年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Conjugation of a catalytically latent Cp*Rh(III) complex to construct a cell surface displayed biohybrid catalyst.2018

    • Author(s)
      Kato, S., Grimm, A., Onoda, A., Schwaneberg, U., Hayashi, T.
    • Organizer
      日本化学会第99春季年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Incorporation of a Noncanonical Metal-binding Amino Acid into a Nitrobindin Protein2018

    • Author(s)
      Alvarez-Miller, M. C., Taniguchi, N., Minagawa, N., Onoda, A., Hashimoto, K., Maruoka, K., Uzawa, T., Hayashi, T.
    • Organizer
      日本化学会第99春季年会
    • Related Report
      2017 Annual Research Report
  • [Remarks]

    • URL

      http://www.chem.eng.osaka-u.ac.jp/~hayashiken/index.html

    • Related Report
      2018 Annual Research Report
  • [Remarks]

    • URL

      http://www.chem.eng.osaka-u.ac.jp/~hayashiken/index.html

    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2021-01-27  

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