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Bacterial Oxygen Sensing Mechanism: Structure and Function Relationships of Sensor Proteins

Research Project

Project/Area Number 18K14384
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 38030:Applied biochemistry-related
Research InstitutionTokyo University of Science (2019-2020)
Ibaraki University (2018)

Principal Investigator

Kitanishi Kenichi  東京理科大学, 理学部第一部化学科, 助教 (90815482)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords酸素 / 酸化還元 / 鉄 / ヘムエリスリン / センサー / c-di-GMP / ヒスチジンキナーゼ / レスポンスレギュレーター / 酸素センサー
Outline of Final Research Achievements

Using bioinfomatics analysis, two sensor proteins containing hemerythrin domain were identified. I characterized these sensor proteins using spectroscopic, crystallographic and biochemical techniques. Based on these data, I discuss the structure and function relationships of these sensor proteins associated with bacterial oxygen sensing.

Academic Significance and Societal Importance of the Research Achievements

本研究結果より、微生物のセンサータンパク質におけるヘムエリスリンドメインの役割の一端を解明することができた。そして、微生物における新たな酸素センシングモデルを提唱することができた。また、本研究の対象であるセンサータイプのヘムエリスリンに加えて、病原菌由来の新たなセンサータンパク質の同定にもつながった。

Report

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

    (6 results)

All 2021 2020 2019 2018 Other

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

  • [Journal Article] Identification and Characterization of a Redox Sensor Phosphodiesterase from Ferrovum sp. PN-J185 Containing Bacterial Hemerythrin and HD-GYP Domains2020

    • Author(s)
      Kitanishi, K., Igarashi, J., Matsuoka, A., Unno, M.
    • Journal Title

      Biochemistry

      Volume: 59 Issue: 8 Pages: 983-991

    • DOI

      10.1021/acs.biochem.0c00021

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 緑膿菌由来の酸素結合タンパク質マイクロヘムエリスリンの構造解析2021

    • Author(s)
      南本晃希、北西健一、海野昌喜
    • Organizer
      2020年度量子ビームサイエンスフェスタ
    • Related Report
      2020 Annual Research Report
  • [Presentation] 病原菌由来の新しいガスセンサータンパク質の同定2019

    • Author(s)
      北西健一、味澤梨香、下仲基之
    • Organizer
      第92回日本生化学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Characterization of Oxygen and Redox Sensing Histidine Kinases2018

    • Author(s)
      Kenichi Kitanishi, Masaki Unno
    • Organizer
      XXth International Conference on Oxygen Binding and Sensing Proteins
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Remarks] 東京理科大学

    • URL

      https://www.tus.ac.jp/academics/teacher/p/index.php?7149

    • Related Report
      2020 Annual Research Report
  • [Remarks] 東京理科大学

    • URL

      https://www.tus.ac.jp/fac_grad/p/achievement.php?7149

    • Related Report
      2019 Research-status Report

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

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