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2019 Fiscal Year Final Research Report

Fluorometric analysis of unstable phosphorylated biomolecules

Research Project

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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
Keywordsリン酸化タンパク質 / フォスタグ技術 / 蛍光分析
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.

Free Research Field

医薬分子子機能科学

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。

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Published: 2021-02-19  

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