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Fluorometric analysis of unstable phosphorylated biomolecules

Research Project

Project/Area Number 17K08237
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Physical pharmacy
Research InstitutionHiroshima University

Principal Investigator

Koike Tohru  広島大学, 医系科学研究科(薬), 教授 (90186586)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsリン酸化タンパク質 / フォスタグ技術 / 蛍光分析 / タンパク質のリン酸化 / 蛍光分析法 / Phos-tag技術 / 二成分伝達系 / プロテオミクス / リン酸化分子 / 亜鉛錯体 / リン酸化シグナル分子 / Phos-tag / キナーゼ
Outline of Final Research Achievements

By utilizing an original fluorometric method using Phosphate-capturing molecules, Phos-tag derivatives, we have developed convenient and reliable protocols for high-throughput analysis of phosphorylation status of unstable kinase or phosphatase substrates. We extended the fluorescent Phos-tag dye technology to profiling of histidine kinase inhibitors. A search for new antibacterial targets is essential to combat the increasing development of drug resistance among bacterial pathogens. We believe that our Phos-tag technology will result in great progress in phosphoproteomics and drug development.

Academic Significance and Societal Importance of the Research Achievements

マイクロモル濃度以下のリン酸化生体分子を生理条件下で選択的に捕捉する低分子亜鉛錯体化合物を用いて,生体機能制御を担う不安定なリン酸化シグナル分子の蛍光分析法を開発した。その研究手法は,現在汎用されているリン酸化シグナルの分析法(放射性同位体法やリン酸化分子の抗体を用いる方法)と比較して,高精度かつ迅速な定量解析を可能にし,簡便な操作性や安全性などの利点をもち,癌やアルツハイマーなどの治療薬や次世代の抗菌薬の開発に役立つオリジナルな分析技術である。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (13 results)

All 2019 2018 2017

All Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 7 results,  Open Access: 6 results) Presentation (6 results) (of which Invited: 1 results)

  • [Journal Article] Gel-based analysis of protein phosphorylation status by rapid fluorometric staining using TAMRA-labeled Phos-tag2019

    • Author(s)
      Hiroshi Kusamoto, Emiko Kinoshita-Kikuta, Tomoyo Nishimura, Tomomi Nagai, Eiji Kinoshita, and Tohru Koike,
    • Journal Title

      Journal of Electrophoresis

      Volume: 63 Issue: 1 Pages: 25-32

    • DOI

      10.2198/jelectroph.63.25

    • NAID

      130007634033

    • ISSN
      1349-9394, 1349-9408
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quantitative monitoring of His and Asp phosphorylation in a bacterial signaling system by using Phos-tag Magenta/Cyan fluorescent dyes2019

    • Author(s)
      Emiko Kinoshita-Kikuta, Hiroshi Kusamoto, Syogo Ono, Keisuke Akayama, Yoko Eguchi, Masayuki Igarashi, Toshihide Okajima, Ryutaro Utsumi, Eiji Kinoshita, Tohru Koike
    • Journal Title

      Electrophoresis

      Volume: 40 Issue: 22 Pages: 3005-3013

    • DOI

      10.1002/elps.201900261

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A strategy to identify protein-N-myristoylation-dependent phosphorylation reactions of cellular proteins by using Phos-tag SDS-PAGE.2019

    • Author(s)
      Emiko Kinoshita-Kikuta, Ayane Tanikawa, Takuro Hosokawa, Aya Kiwado, Koko Moriya, Eiji Kinoshita, Tohru Koike, Toshihiko Utsumi
    • Journal Title

      PLOS ONE

      Volume: 14 Issue: 11 Pages: e0225510-e0225510

    • DOI

      10.1371/journal.pone.0225510

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Increase in constitutively active MEK1 species by introduction of MEK1 mutations identified in cancers2019

    • Author(s)
      E. Kinoshita-Kikuta, E. Kinoshita, S. Ueda, Y. Ino, Y. Kimura, H. Hirano, and T. Koike
    • Journal Title

      BBA - Proteins and Proteomics

      Volume: 1867 Issue: 1 Pages: 62-70

    • DOI

      10.1016/j.bbapap.2018.05.004

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A simple method for determining the ligand affinity toward a zinc-enzyme model by using a TAMRA/TAMRA interaction2018

    • Author(s)
      H. Kusamoto, A. Shiba, M. Tsunehiro, H. Fujioka, E. Kinoshita-Kikuta, E. Kinoshita, and T. Koike
    • Journal Title

      Dalton Transactions

      Volume: 47 Issue: 6 Pages: 1841-1847

    • DOI

      10.1039/c7dt04364c

    • NAID

      120007018403

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] TAMRA/TAMRA fluorescence quenching systems for the activity assay of alkaline phosphatase2017

    • Author(s)
      A. Shiba, E. Kinoshita-Kikuta, E. Kinoshita, and Tohru Koike
    • Journal Title

      Sensors

      Volume: 17 Issue: 8 Pages: 1877-1888

    • DOI

      10.3390/s17081877

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Phos-tag-based micropipette-tip method for rapid and selective enrichment of phosphopeptides2017

    • Author(s)
      E. Tianfei Yuan, Y. Ino, M. Kawaguchi, Y. Kimura, H. Hirano, E. Kinoshita-Kikuta, E. Kinoshita, and Tohru Koike
    • Journal Title

      Electrophoresis

      Volume: 38 Issue: 19 Pages: 2447-2455

    • DOI

      10.1002/elps.201700175

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] リン酸化タンパク質特異的ゲル蛍光染色2018

    • Author(s)
      草本 寛,西村 朋世,木下 恵美子,木下 英司,小池 透
    • Organizer
      日本電位泳動学会総会
    • Related Report
      2018 Research-status Report
  • [Presentation] Phosphorylated protein specific fluorescent gel stain using a TAMRA-Phos-tag2018

    • Author(s)
      草本 寛,木下 恵美子,木下 英司,小池 透
    • Organizer
      日本生化学会
    • Related Report
      2018 Research-status Report
  • [Presentation] 亜鉛酵素モデルに対するリガンドの親和性を解析する新規分光分析法の開発2018

    • Author(s)
      草本 寛,芝 晃生,常弘昌弥,藤岡晴人,木下英司, 木下恵美子, 小池 透
    • Organizer
      日本薬学会第138年会
    • Related Report
      2017 Research-status Report
  • [Presentation] 蛍光クエンチングを用いるアルカリホスファターゼ分析の新規蛍光分析法の開発2018

    • Author(s)
      芝 晃生,木下英司, 木下恵美子, 小池 透
    • Organizer
      日本薬学会第138年会
    • Related Report
      2017 Research-status Report
  • [Presentation] 蛍光クエンチングを用いる脱リン酸化酵素活性の新規蛍光分析法の開発2017

    • Author(s)
      芝 晃生,木下恵美子,木下英司,小池 透
    • Organizer
      日本電気泳動学会第68回総会
    • Related Report
      2017 Research-status Report
  • [Presentation] 金属配位結合を利用したプロテオミクス2017

    • Author(s)
      小池 透
    • Organizer
      日本電気泳動学会第68回総会
    • Related Report
      2017 Research-status Report
    • Invited

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Published: 2017-04-28   Modified: 2021-02-19  

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