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Function analysis and modification of photoactivaated adenylyl cyclases aimed at generating a novel optogenetic tool

Research Project

Project/Area Number 18K06166
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

ISEKI Mineo  東邦大学, 薬学部, 教授 (60414009)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords光活性化アデニル酸シクラーゼ / 光遺伝学 / フラビン / cAMP / オプトジェネティクス / 光センサー / アデニル酸シクラーゼ / 光センサータンパク質 / 光応答
Outline of Final Research Achievements

This study is aimed at enhancing the usefulness of photoactivated adenylyl cyclase (PAC) as an optogenetic tool by modification of already known PACs and functional analysis of novel similar proteins. Functional analysis of 16 PAC-like genes recently found on the bacterial genome revealed that seven of them showed adenylyl cyclase activity activated by light. Some of these differed in temperature sensitivity and maximum velocity, which leads to an increase in variety of optogenetic tools

Academic Significance and Societal Importance of the Research Achievements

光活性化アデニル酸シクラーゼ(PAC)は、さまざまな生体機能を光で人為的にコントロールする光遺伝学ツールとして使用可能なタンパク質である。本研究により、バクテリアのゲノム塩基配列データ上に情報としてのみ存在するPAC類似配列について機能解析が行われ、その幾つかは光で亢進されるアデニル酸シクラーゼ活性を示し、興味深い特徴を持つことが明らかになった。これは光遺伝学ツールの多様性を高めるものであり、光遺伝学的手法の応用範囲拡大につながると期待される。

Report

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

    (2 results)

All 2021 2019

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (1 results)

  • [Journal Article] Photoactivated adenylyl cyclases: fundamental properties and applications.2021

    • Author(s)
      Iseki M, Park SY.
    • Journal Title

      Adv Exp Med Biol.

      Volume: 1293 Pages: 129-139

    • DOI

      10.1007/978-981-15-8763-4_7

    • ISBN
      9789811587627, 9789811587634
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] シアノバクテリアOscillatoria acuminataの光運動反応2019

    • Author(s)
      鶴岡真緒、佐藤 匠、岩田達也、伊関峰生
    • Organizer
      ユーグレナ研究会第35回研究集会
    • Related Report
      2019 Research-status Report

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

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