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Electron transfer pathway regulating methane monooxygenase activity

Research Project

Project/Area Number 25630363
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Catalyst/Resource chemical process
Research InstitutionTokyo Institute of Technology

Principal Investigator

MIYAJI AKIMITSU  東京工業大学, 総合理工学研究科(研究院), 助教 (40452023)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsメタン水酸化 / 生体触媒 / 電子伝達 / 活性酸素 / メタン水酸化反応
Outline of Final Research Achievements

In this study, we investigated the electron transfer pathway from the electron donor in bacteral membrane to the catalytic site of copper-containing methane monooxygenase. We extablished the method for removing a copper ion selectively from the mono-copper site of the copper-containing methane monooxygenase. The copper-deficient methane monooxygenase showed the activity for methane hydroxylation only when duroquinol, which can donate electrons directly to the catalytic site (di-copper site) of the copper-containing methane monooxygenase, was used as the electron donor. This result indicates that mono-copper site plays a role in the elctron mediation from the electron donor in bacterial membtarne to the catalytic site of copper-containing methane monooxygenase.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (7 results)

All 2016 2015 2014 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Acknowledgement Compliant: 3 results) Presentation (4 results) (of which Invited: 1 results)

  • [Journal Article] Product Selectivity in Alkane Conversion within Cavities of Enzymes and Zeolites: Influence of Cavity Volume on Product Selectivity2016

    • Author(s)
      Akimitsu Miyaji
    • Journal Title

      Journal of Japan Petroleum Institute

      Volume: 59 Pages: 35-45

    • NAID

      130005149774

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Singlet Oxygen Generation during the Oxidation of L-Tyrosine and L-Dopa with Mushroom Tyrosinase2016

    • Author(s)
      Akimitsu Miyaji, Masahiro Kohno, Yoshihiro Inoue, Toshihide Baba
    • Journal Title

      Biochemical Biophysical Research Communications.

      Volume: 471 Issue: 4 Pages: 450-453

    • DOI

      10.1016/j.bbrc.2016.02.056

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Discrimination of the Prochiral Hydrogens at the C-2 Position of n-Alkanes by Methane/Ammonia Monooxygenase Family Proteins2015

    • Author(s)
      Akimitsu Miyaji, Teppei Miyoshi, Ken Motokura, Toshihide Bab
    • Journal Title

      Organic and Biomolecular Chemistry

      Volume: 13 Issue: 30 Pages: 8261-8270

    • DOI

      10.1039/c5ob00640f

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] シトクロムP450BM-3のAla328へのアミノ酸側鎖置換が直鎖ヘキサンからヘキサノール異性体への選択性に及ぼす影響2015

    • Author(s)
      宮地 輝光・テキ ブンカ・馬場 俊秀
    • Organizer
      第116回触媒討論会
    • Place of Presentation
      三重大学
    • Year and Date
      2015-09-16
    • Related Report
      2015 Annual Research Report
  • [Presentation] シトクロムP450BM-3のn -ペンタン・n -ヘキサンからアルコール位置・立体異性体への選択性に及ぼすパーフルオロアルカン酸の影響2014

    • Author(s)
      宮地輝光,中川聡矢,本倉 健,馬場俊秀
    • Organizer
      第44回石油・石油化学討論会
    • Place of Presentation
      旭川グランドホテル
    • Year and Date
      2014-10-16 – 2014-10-17
    • Related Report
      2014 Research-status Report
  • [Presentation] シトクロム P450BM-3の直鎖アルカンからアルコール異性体への選択性に及ぼす活性点近傍アミノ酸側鎖の影響2014

    • Author(s)
      宮地輝光・本倉健・馬場俊秀
    • Organizer
      第114回触媒討論会
    • Place of Presentation
      広島大学
    • Year and Date
      2014-09-25 – 2014-09-27
    • Related Report
      2014 Research-status Report
  • [Presentation] 酵素による炭化水素の部分酸化反応

    • Author(s)
      宮地輝光・馬場俊秀
    • Organizer
      高難度選択酸化反応研究会シンポジウム
    • Place of Presentation
      東京工業大学(東京都)
    • Related Report
      2013 Research-status Report
    • Invited

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Published: 2014-07-25   Modified: 2019-07-29  

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