• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Fluorescence-regulating techniques reveal translocation mechanisms of metabolism-related proteins

Research Project

Project/Area Number 20H02879
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 37030:Chemical biology-related
Research InstitutionKyushu University (2021-2023)
Osaka University (2020)

Principal Investigator

Hori Yuichiro  九州大学, 理学研究院, 教授 (00444563)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2022: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2021: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2020: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Keywords蛍光プローブ / タンパク質の分解 / GLUT4 / 糖鎖 / 動的性質 / 蛍光レシオ / エンドサイトーシス / 蛍光スイッチプローブ / OFF-ON-OFF型蛍光プローブ / マルチカラーイメージング / OFF-ON-OFF蛍光プローブ / タンパク質分解 / タンパク質ラベル化 / PYPタグ
Outline of Research at the Start

本研究では、タンパク質蛍光標識法を用い、化学原理に基づき蛍光を制御することで、代謝に関するタンパク質が引き起こすダイナミックな生命現象を解明する。第一は、タンパク質を標識すると蛍光性になり、タンパク質の分解に伴い蛍光が減少するOFF-ON-OFF型蛍光プローブにより、ストレス応答時におけるタンパク質分解を可視化する。第二は、pHに応答するマルチ蛍光スイッチプローブを開発し、膜タンパク質の内在化から分解に至る過程を可視化する。本研究では、これらのタンパク質の動態制御機構を明らかにし、疾病治療に役立つ知見を得る。

Outline of Final Research Achievements

Protein localization changes and degradation play an important role in regulating cellular metabolism. Existing detection methods for protein degradation involve Western blotting with the addition of protein synthesis inhibitors, which affect whole protein synthesis throughout the cell. To solve this problem, we developed OFF-ON-OFF fluorescent probes, which become fluorescent when protein is labeled and suppress fluorescence upon degradation, to visualize the degradation of metabolism-related proteins.

Academic Significance and Societal Importance of the Research Achievements

代謝に関わるタンパク質には、栄養状態の変化やストレスに応じて、細胞内局在や発現・分解量をダイナミックに変化させるものがある。その異常は癌や生活習慣病の原因となるため、タンパク質動態・分解の可視化は疾病治療の観点から極めて重要な課題である。一方、特にタンパク質の分解を検出する既存の技術には、タンパク質合成阻害剤を使用するなど不十分な点が多い。本研究では、新たな化学原理に基づく蛍光プローブを開発することで、現在のタンパク質動態・分解可視化技術における問題を解決し、代謝に関するタンパク質の動態研究や、代謝異常に伴う疾病に関する医療研究に有用なツールと知見を与える。

Report

(4 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (11 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (3 results) Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (5 results) (of which Int'l Joint Research: 3 results,  Invited: 3 results)

  • [Int'l Joint Research] The University of Edinburgh(英国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Bath University(英国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Bath University(英国)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] No-wash fluorogenic labeling of proteins for reversible photoswitching in live cells2024

    • Author(s)
      Torii Kenji、Benson Sam、Hori Yuichiro、Vendrell Marc、Kikuchi Kazuya
    • Journal Title

      Chemical Science

      Volume: 15 Issue: 4 Pages: 1393-1401

    • DOI

      10.1039/d3sc04953a

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Visualization of multiple localizations of GLUT4 by fluorescent probes of PYP-tag with designed unnatural warhead2023

    • Author(s)
      Nishiura Miyako、Hori Yuichiro、Umeno Maho、Kikuchi Kazuya
    • Journal Title

      Chemical Science

      Volume: 14 Issue: 22 Pages: 5925-5935

    • DOI

      10.1039/d3sc00724c

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] An “OFF-ON-OFF” fluorescence protein-labeling probe for real-time visualization of the degradation of short-lived proteins in cellular systems2022

    • Author(s)
      Reja Shahi Imam、Hori Yuichiro、Kamikawa Takuya、Yamasaki Kohei、Nishiura Miyako、Bull Steven D.、Kikuchi Kazuya
    • Journal Title

      Chemical Science

      Volume: 13 Issue: 5 Pages: 1419-1427

    • DOI

      10.1039/d1sc06274c

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] ラベル化ケミストリーによる 膜タンパク質の多重局在の可視化2023

    • Author(s)
      堀 雄一郎
    • Organizer
      蛋白質科学会第23回年会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] タンパク質の多重局在を可視化する タンパク質ラベル化技術2023

    • Author(s)
      堀 雄一郎
    • Organizer
      日本薬学会第143年会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Fluorescence Imaging of Endogenous Biomolecules Using Fluorogen/Protein Hybrid Probes2021

    • Author(s)
      Yuichiro Hori, Kazuya Kikuchi
    • Organizer
      Pacifichem 2021
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Fluorescent Labeling Probes that Selectively Recognize Intracellular/Cell-Surface Proteins2021

    • Author(s)
      Yuichiro Hori, Miyako Nishiura, Kazuya Kikuchi
    • Organizer
      AIMECS 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fluorescent Labeling Probes that Selectively Recognize Intracellular/Cell-Surface Proteins2021

    • Author(s)
      Yuichiro Hori, Miyako Nishiura, Kazuya Kikuchi
    • Organizer
      AIMECS2021
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi