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Elucidation of the oxygen reduction mechanism of multicopper oxidase by structural analysis of reaction intermediates and its application.

Research Project

Project/Area Number 18K05432
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38030:Applied biochemistry-related
Research InstitutionKanazawa University

Principal Investigator

Kataoka Kunishige  金沢大学, 物質化学系, 教授 (40252712)

Co-Investigator(Kenkyū-buntansha) 山下 哲  金沢大学, 物質化学系, 准教授 (70361186)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsマルチ銅オキシターゼ / 構造解析 / 反応機構 / 指向進化 / マルチ銅オキシダーゼ / 一価銅酸化酵素 / 中性子線構造解析 / X線結晶構造解析 / 中性子線結晶構造解析
Outline of Final Research Achievements

Multicopper oxidases (MCOs) catalyze the oxidation of a wide range of substrates by reducing O2 to H2O without releasing activated oxygen species. In this study, we aimed to elucidate the structure of the 4-electron reduction intermediate of oxygen using the cuprous oxidase CueO from Escherichia coli. We succeeded in stabilizing the intermediate by introducing a triple mutation, and produced a high-quality crystal that can be used for neutron diffraction. In addition, directed evolution has yielded six very active mutants. Some also succeeded in structural analysis, and revealed that destabilization of the tower loop region of domain 3 leads to increased activity. These results provide a new methodology for controlling the activity of MCOs and contribute to their industrial application.

Academic Significance and Societal Importance of the Research Achievements

マルチ銅オキシダーゼ(MCO)は様々な基質を電子供与体として利用できるのでその応用範囲が広い。例えばラッカーゼは製紙工業におけるパルプの脱リグニン・漂白工程,繊維産業などの脱色工程や排水処理に利用されている。他にもバイオエタノール生産のためのリファイニング工程や,医薬品の合成,バイオ燃料電池のカソード電極用触媒として利用や,環境中の金属イオンの濃縮・回収に利用できるなどMCOの応用範囲が拡大している。本研究では,MCOの反応機構を解析すると同時に,指向進化によりMCOの高機能化の新たな方法論を開発した。今後のMCOの産業応用に大いに貢献する成果と言える。

Report

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

    (21 results)

All 2020 2019 2018

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Open Access: 1 results) Presentation (14 results) (of which Invited: 1 results)

  • [Journal Article] Effects of Elimination of α Helix Regions on Direct Electron Transfer-type Bioelectrocatalytic Properties of Copper Efflux Oxidase2020

    • Author(s)
      ADACHI Taiki、KITAZUMI Yuki、SHIRAI Osamu、KAWANO Tenta、KATAOKA Kunishige、KANO Kenji
    • Journal Title

      Electrochemistry

      Volume: 88 Issue: 3 Pages: 185-189

    • DOI

      10.5796/electrochemistry.20-00015

    • NAID

      130007840148

    • ISSN
      1344-3542, 2186-2451
    • Year and Date
      2020-05-05
    • Related Report
      2020 Annual Research Report 2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Crystal structure of chalcone synthase, a key enzyme for isoflavonoid biosynthesis in soybean2020

    • Author(s)
      Imaizumi Riki、Mameda Ryo、Takeshita Kohei、Kubo Hiroki、Sakai Naoki、Nakata Shun、Takahashi Seiji、Kataoka Kunishige、Yamamoto Masaki、Nakayama Toru、Yamashita Satoshi、Waki Toshiyuki
    • Journal Title

      Proteins: Structure, Function, and Bioinformatics

      Volume: 89 Issue: 1 Pages: 126-131

    • DOI

      10.1002/prot.25988

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Roles of the indole ring of Trp396 covalently bound with the imidazole ring of His398 coordinated to type I copper in bilirubin oxidase2020

    • Author(s)
      Kataoka Kunishige、Ito Takahiro、Okuda Yoko、Sakai Yoko、Yamashita Satoshi、Sakurai Takeshi
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 521 Issue: 3 Pages: 620-624

    • DOI

      10.1016/j.bbrc.2019.10.159

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Diffusion-limited biosensing of dissolved oxygen by direct electron transfer-type bioelectrocatalysis of multi-copper oxidases immobilized on porous gold microelectrodes2020

    • Author(s)
      Miyata Masahiro、Kitazumi Yuki、Shirai Osamu、Kataoka Kunishige、Kano Kenji
    • Journal Title

      Journal of Electroanalytical Chemistry

      Volume: 860 Pages: 113895-113895

    • DOI

      10.1016/j.jelechem.2020.113895

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Bio-solar Cell with Thylakoid Membranes and Bilirubin Oxidase2019

    • Author(s)
      Adachi Taiki、Kataoka Kunishige、Kitazumi Yuki、Shirai Osamu、Kano Kenji
    • Journal Title

      Chemistry Letters

      Volume: 48 Issue: 7 Pages: 686-689

    • DOI

      10.1246/cl.190176

    • NAID

      130007674928

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Redox Potential‐Dependent Formation of an Unusual His?Trp Bond in Bilirubin Oxidase2018

    • Author(s)
      Akter Mahfuza、Tokiwa Takaki、Shoji Mitsuo、Nishikawa Koji、Shigeta Yasuteru、Sakurai Takeshi、Higuchi Yoshiki、Kataoka Kunishige、Shibata Naoki
    • Journal Title

      Chemistry ? A European Journal

      Volume: 24 Issue: 68 Pages: 18052-18058

    • DOI

      10.1002/chem.201803798

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Structural Changes of the Trinuclear Copper Center in Bilirubin Oxidase upon Reduction2018

    • Author(s)
      Tokiwa Takaki、Shoji Mitsuo、Sladek Vladimir、Shibata Naoki、Higuchi Yoshiki、Kataoka Kunishige、Sakurai Takeshi、Shigeta Yasuteru、Misaizu Fuminori
    • Journal Title

      Molecules

      Volume: 24 Issue: 1 Pages: 76-76

    • DOI

      10.3390/molecules24010076

    • NAID

      120007133588

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] 大腸菌発現ビリルビンオキシダーゼへの部位特異的ポリエチレングリコール付加2020

    • Author(s)
      伊藤晟,山下哲,櫻井武,片岡邦重
    • Organizer
      第93回日本生化学会大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 貝紫合成に関与するブロモペルオキシダーゼの可溶性成分の精製2020

    • Author(s)
      熊川初香,東田海斗,山下哲,片岡邦重
    • Organizer
      第93回日本生化学会大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 大腸菌発現型ビリルビンオキシダーゼの性質2020

    • Author(s)
      片岡邦重
    • Organizer
      第461回ビタミンB研究協議会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Clostridium beijerinckii由来マルチ銅オキシダーゼのタイプⅠ銅部位への変異導入2020

    • Author(s)
      寺西梨来,三原早織,山下哲,片岡邦重
    • Organizer
      2020年度日本化学会近畿支部 北陸地区研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] マルチ銅オキシダーゼCueOのヘリックス欠損変異体による直接電子移動型酵素電極反応の速度論的解析と特性評価2020

    • Author(s)
      足立大宜,北隅優希,白井理,片岡邦重,加納健司
    • Organizer
      電気化学会第87回大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Clostridium beijerinckii由来マルチ銅オキシダーゼの大腸菌での異種発現と精製2019

    • Author(s)
      三原早織,木村祐二,山下哲,片岡邦重
    • Organizer
      第92回日本生化学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 貝紫色素の合成に関与するブロモペルオキシダーゼの探索2019

    • Author(s)
      東田海斗,熊川初香,山下哲,片岡邦重
    • Organizer
      第92回日本生化学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 大腸菌発現ビリルビンオキシダーゼの電気化学的性質2019

    • Author(s)
      伊藤晟,山下哲,櫻井武,片岡邦重
    • Organizer
      2019年度日本化学会近畿支部北陸地区研究発表会
    • Related Report
      2019 Research-status Report
  • [Presentation] 貝紫合成に関与するブロモペルオキシダーゼの可溶性成分の精製2019

    • Author(s)
      熊川初香,東田海斗,山下哲,片岡邦重
    • Organizer
      2019年度日本化学会近畿支部北陸地区研究発表会
    • Related Report
      2019 Research-status Report
  • [Presentation] 大腸菌を宿主とするアスコルビン酸オキシダーゼの異種発現2019

    • Author(s)
      八木彩子,澤井智也,山下哲,片岡邦重
    • Organizer
      2019年度日本化学会近畿支部北陸地区研究発表会
    • Related Report
      2019 Research-status Report
  • [Presentation] 指向進化によるマルチ銅オキシダーゼの高活性化2019

    • Author(s)
      高田修平,櫻井武,片岡邦重
    • Organizer
      ビタミンB研究委員会第455回研究協議会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] ランダムおよび部位特異的変異導入による一価銅オキシダーゼ CueO の高活性化2019

    • Author(s)
      片岡 邦重,高田 修平,櫻井 武
    • Organizer
      日本農芸化学会2019年度大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 光合成をモチーフとした高出力バイオ太陽電池の構築2019

    • Author(s)
      足立 大宜,北隅 優希,白井 理,片岡 邦重,加納 健司
    • Organizer
      日本農芸化学会2019年度大会
    • Related Report
      2018 Research-status Report
  • [Presentation] ビリルビン酸化酵素の電子受容部位の構造と機能2018

    • Author(s)
      片岡邦重,重田育照,櫻井武,樋口芳樹,柴田直樹
    • Organizer
      酵素補酵素研究会2018
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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