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Clarifying the fundamental principles of signal transduction mechanisms by simultaneous measurement of intracellular protein behavior and cellular responses in a single cell

Research Project

Project/Area Number 21K06097
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 43040:Biophysics-related
Research InstitutionOsaka University

Principal Investigator

Fukuoka Hajime  大阪大学, 大学院生命機能研究科, 准教授 (50447190)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords走化性 / 感覚受容 / 情報伝達 / 細菌走化性 / シグナル伝達 / イメージング / 大腸菌 / FRET / 蛍光イメージング / 回転計測 / 1細胞計測
Outline of Research at the Start

大腸菌は小さな細胞の中に,高等生物と同じようなセンシング能,情報処理能,運動能を有しているが,単純な大腸菌ですら,細胞の応答を細胞内でのタンパク質動態(局在,活性,分子数,相互作用)として理解するには至っていない.本研究は1細胞内FRETや走化性タンパク質の細胞内動態と共に,最終出力のべん毛モーター回転を同時計測することで,定常状態における走化性システム,入力に対する細胞応答やシステムのリセット機構の定量的解析を1細胞で行う.これにより生きた細胞内のタンパク質動態と細胞応答の相関関係を直接的に理解し,生命に普遍的な細胞内情報伝達の基本原理を,細胞内のタンパク質動態レベルで明らかにする.

Outline of Final Research Achievements

This study aimed to quantitatively understand chemotaxis signaling in a single E. coli cell by correlating with parameters among signal input, behavior of intracellular protein, and cellular response based on single-cell measurement technique. This study clarified that 1) spontaneous activation of the receptor array is caused by changes in the methylation level of the chemoreceptor by the activity of CheR and CheB. This study also found that 2) by simultaneous measurements of dynamics in CheB and cellular behavior during the repellent response, dynamic changes in CheB localization reflects chemoreceptor’s activity. This study also quantified 3) the correlation between the intracellular CheYp concentration change and cellular behavior in response to an attractant stimulus by measuring the FRET change between CheZ and CheY and the rotational direction of flagellar motor.

Academic Significance and Societal Importance of the Research Achievements

『外環境情報を感知・処理し応答する』ことは最も重要な生命現象の一つである.従来は,生物種を問わず情報処理を担う生体分子の機能やそれらの相関図の解明に焦点が当てられてきた一方で,生きた細胞内での情報処理を担うタンパク質の動態(活性,相互作用,数など)を細胞の応答に直接的に結びつけて理解するには至っていない.本研究は,シンプルな情報伝達系である大腸菌の走化性システムを対象に,独自の1細胞計測技術により『シグナル入力,細胞内タンパク質の動態,細胞応答』を同時に計測し,それら計測パラメーターの関連付けによって情報伝達の定量的な理解に繋げた.本研究の成果は生物に共通の情報伝達系の定量的理解に貢献する.

Report

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

    (26 results)

All 2024 2023 2022 2021

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (25 results)

  • [Journal Article] The Chemoreceptor Sensory Adaptation System Produces Coordinated Reversals of the Flagellar Motors on an Escherichia coli Cell2022

    • Author(s)
      Yumiko Uchida, Tatsuki Hamamoto, Yong-Suk Che, Hiroto Takahashi, John S. Parkinson, Akihiko Ishijima, Hajime Fukuoka
    • Journal Title

      Journal of Bacteriology

      Volume: 204 Issue: 12

    • DOI

      10.1128/jb.00278-22

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 大腸菌べん毛モーターの回転ゆらぎ2024

    • Author(s)
      内田裕美子, 石島秋彦, 福岡創
    • Organizer
      生体運動研究合同班会議 2024
    • Related Report
      2023 Annual Research Report
  • [Presentation] 大腸菌べん毛の回転方向に依存した揺らぎとフックの関係2024

    • Author(s)
      福岡 創
    • Organizer
      2023 年度べん毛研究交流会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 大腸菌単一細胞における走化性応答時の走化性タンパク質の細胞内動態の観察2023

    • Author(s)
      Hajime Fukuoka, Yumiko Uchida, Yong-Suk Che, Akihiko Ishijima
    • Organizer
      第61会日本生物物理学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] デコンボリューション法を用いた大腸菌走化性受容体の三次元観察2023

    • Author(s)
      Yumiko Uchida, Yong-Suk Che, Akihiko Ishijima, Hajime Fukuoka
    • Organizer
      第61会日本生物物理学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 同種の受容体からなる受容体アレイがもたらす短い適応時間2023

    • Author(s)
      Saki Ueda, Yumiko Uchida, Yong-Suk Che, Akihiko Ishijima, Hajime Fukuoka
    • Organizer
      第61会日本生物物理学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 適応を担う2種類の酵素であるCheRとCheBの細胞内動態の比較2023

    • Author(s)
      Taketo Oshima, Yumiko Uchida, Yong-Suk Che, Akihiko Ishijima, Hajime Fukuoka
    • Organizer
      第61会日本生物物理学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Exploration of isoleucine recognition sites in chemoreceptor using chimeric receptors2023

    • Author(s)
      Shinnosuke Kawahara, Yumiko Uchida, Yong-Suk Che, Akihiko Ishijima, Hajime Fukuoka
    • Organizer
      第61会日本生物物理学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 回転方向に依存した大腸菌べん毛モーターの回転ゆらぎ2023

    • Author(s)
      Taisei Miyamoto, Yumiko Uchida, Yong-Suk Che, Akihiko Ishijima, Hajime Fukuoka
    • Organizer
      第61会日本生物物理学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] CheB-GFPの1細胞動態計測による大腸菌セリン受容体 Tsr の忌避刺激認識および情報伝達の解析2023

    • Author(s)
      福岡 創
    • Organizer
      生体運動研究合同班会議 2024
    • Related Report
      2023 Annual Research Report
  • [Presentation] 走化性受容体脱メチル化酵素 CheB の局在変化を通じた忌避応答反応過程の考察2023

    • Author(s)
      福岡 創
    • Organizer
      2023年 生体運動研究合同班会議
    • Related Report
      2022 Research-status Report
  • [Presentation] QUANTIFICATION OF REPELLENT RESPONSE THROUGH THE CHEB- LOCALIZATION AND REVERSALS OF FLAGELLAR MOTOR IN SINGLE E. COLI CELL2023

    • Author(s)
      Hajime Fukuoka, Akihiko Ishijima
    • Organizer
      BLAST XVII
    • Related Report
      2022 Research-status Report
  • [Presentation] Investigation for the cause of rotational fluctuations depending on the rotational direction of flagellar motor2022

    • Author(s)
      Kazumi Akahoshi, Yumiko Uchida, Yong-Suk Che, Akihiko Ishijima, Hajime Fukuoka
    • Organizer
      第60回 日本生物物理学会年会
    • Related Report
      2022 Research-status Report
  • [Presentation] Repellent response and adaptation through the CheB-localization in single E. coli cell2022

    • Author(s)
      Taiga Deguchi, Yumiko Uchida, Yong-Suk Che, Akihiko Ishijima, Tatsuki Hamamoto, Hajime Fukuoka
    • Organizer
      第60回 日本生物物理学会年会
    • Related Report
      2022 Research-status Report
  • [Presentation] Analysis for the effect of CheZ localization on chemotaxis of Escherichia coli by capillary assay2022

    • Author(s)
      Sawako Matsuda, Yong-Suk Che, Akihiko Ishijima, Masaru Kojima, Hajime Fukuoka
    • Organizer
      第60回 日本生物物理学会年会
    • Related Report
      2022 Research-status Report
  • [Presentation] Comparison of responses to repellent stimulus at heterogeneous MCPs through polar localization of CheB2022

    • Author(s)
      Shinnosuke Kawahara, Yumiko Uchida, Yong-Suk Che, Akihiko Ishijima, Hajime Fukuoka
    • Organizer
      第60回 日本生物物理学会年会
    • Related Report
      2022 Research-status Report
  • [Presentation] Estimation of mutant/WT receptors ratios in receptor array that disrupts the switching coordination between flagellar motors of E. coli2022

    • Author(s)
      Yumiko Uchida, Hajime Fukuoka, Akihiko Ishijima, Yong-Suk Che
    • Organizer
      第60回 日本生物物理学会年会
    • Related Report
      2022 Research-status Report
  • [Presentation] Two behaviors of adaptation by cooperative action of a single E. coli receptor to low concentrations of serine using FRET measurement2022

    • Author(s)
      Yuki Takada, Akihiko Ishijima, Hajime Fukuoka, Yong-Suk Che
    • Organizer
      第60回 日本生物物理学会年会
    • Related Report
      2022 Research-status Report
  • [Presentation] 大腸菌べん毛の回転方向に依存した揺らぎ2022

    • Author(s)
      福岡 創
    • Organizer
      2022年 生体運動研究合同班会議
    • Related Report
      2021 Research-status Report
  • [Presentation] 忌避シグナル導入におけるCheBの細胞内動態とべん毛モーター回転の同時計測2022

    • Author(s)
      福岡 創
    • Organizer
      2021 年度べん毛研究交流会
    • Related Report
      2021 Research-status Report
  • [Presentation] Observation of behavior of flagella in Escherichia coli by using fluorescence staining2021

    • Author(s)
      Tatsuya Nakaue, Yong-Suk Che, Akihiko Ishijima, Hajime Fukuoka
    • Organizer
      第59回 日本生物物理学会年会
    • Related Report
      2021 Research-status Report
  • [Presentation] Search for domain in chemoreceptor to cause coordination of rotational switching between flagellar motors2021

    • Author(s)
      Hiroto Kozono, Yong-Suk Che, Hajime Fukuoka, Akihiko Ishijima
    • Organizer
      第59回 日本生物物理学会年会
    • Related Report
      2021 Research-status Report
  • [Presentation] Change in methylation level in receptor array causes coordinated reversal of flagellar motors on a single Escherichia coli cell2021

    • Author(s)
      Yumiko Uchida, Tatsuki Hamamoto, Yong-Suk Che, Akihiko Ishijima, Hajime Fukuoka
    • Organizer
      第59回 日本生物物理学会年会
    • Related Report
      2021 Research-status Report
  • [Presentation] Quantification for mutant/WT receptors ratio that collapses receptor cooperativity and switching coordination between flagellar motors2021

    • Author(s)
      Shiori Awa, Yumiko Uchida, Hajime Fukuoka, Akihiko Ishijima, Yong-Suk Che
    • Organizer
      第59回 日本生物物理学会年会
    • Related Report
      2021 Research-status Report
  • [Presentation] High temporal observation of CheY-binding and dissociation during rotational switching of a single flagellar motor2021

    • Author(s)
      Taro Yuri, Yumiko Uchida, Yong-Suk Che, Akihiko Ishijima, Hajime Fukuoka
    • Organizer
      第59回 日本生物物理学会年会
    • Related Report
      2021 Research-status Report
  • [Presentation] Simultaneous measurement for the stator-incorporation and the flagellar motor rotation2021

    • Author(s)
      Tomohiro Teshima, Yumiko Uchida, Yong-Suk Che, Akihiko Ishijima, Hajime Fukuoka
    • Organizer
      第59回 日本生物物理学会年会
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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