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Identification of lipid regulatory genes important for membrane protein functions

Research Project

Project/Area Number 18K06495
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 46010:Neuroscience-general-related
Research InstitutionCenter for Novel Science Initatives, National Institutes of Natural Sciences

Principal Investigator

Sokabe Takaaki  大学共同利用機関法人自然科学研究機構(新分野創成センター、アストロバイオロジーセンター、生命創成探究, 生命創成探究センター, 准教授 (70419894)

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: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords温度受容 / 光受容 / 味覚受容 / ショウジョウバエ / TRPチャネル / 脂質 / 感覚神経 / 温度走性 / 行動解析 / 行動 / 膜蛋白質
Outline of Final Research Achievements

Membrane receptors embedded in the plasma membrane play indispensable roles in sensory functions, which detect various environmental stimuli. Since these sensors directly interact with surrounding lipid components, lipids are expected to regulate the protein functions. In this project we employed Drosophila melanogaster as a model for studying the sensory functions and sought for lipid regulatory genes that may be important for their behaviors. We found multiple genes involved in lipid metabolisms contribute to sensory processes including temperature, light and gustatory sensations. Our findings shed a light on novel physiological roles of lipid components that function together with sensors.

Academic Significance and Societal Importance of the Research Achievements

過去20年で感覚機能の分子メカニズムの理解は大きく進展したが、これまでは主に細胞膜に存在するタンパク質分子が研究のターゲットであった。一方で、脂質は遺伝子にコードされておらず、時空間的に流動的であるため、その重要性にも関わらず生理機能における役割は明らかになっていなかった。本研究によって、感覚受容に寄与する脂質関連遺伝子やその代謝産物が、感覚受容プロセスの制御や情報伝達に必須であることが明らかになり、脂質の持つ新たな機能が提唱されたとともに、ヒトを含む様々な生物にとって、脂質成分の生理的・機能的重要性を示すことができた。

Report

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

    (8 results)

All 2021 2020 2018

All Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (6 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Temperature and Sweet Taste Integration in Drosophila2020

    • Author(s)
      Li Qiaoran、DeBeaubien Nicolas A.、Sokabe Takaaki、Montell Craig
    • Journal Title

      Current Biology

      Volume: 30 Issue: 11 Pages: 2051-2067.e5

    • DOI

      10.1016/j.cub.2020.03.066

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Temperature Gradient Assay to Determine Thermal Preferences of Drosophila Larvae2018

    • Author(s)
      Liu Jiangqu、Sokabe Takaaki、Montell Craig
    • Journal Title

      Journal of Visualized Experiments

      Volume: 136 Issue: 136

    • DOI

      10.3791/57963

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Light stimulation induces biosynthesis of endocannabinoids and N-acyl amide in photoreceptor cells in Drosophila.2021

    • Author(s)
      Takaaki Sokabe, Heather B. Bradshaw, Craig Montell
    • Organizer
      第126回日本解剖学会 第98回日本生理学会大会 合同大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Identification of genes regulating sensory functions via modifications of membrane lipids in Drosophila.2021

    • Author(s)
      Takuto Suito, Makoto Tominaga, Takaaki Sokabe
    • Organizer
      第126回日本解剖学会 第98回日本生理学会大会 合同大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Physiological functions of lipid enzymes involved in thermotaxis in Drosophila melanogaster.2021

    • Author(s)
      Xiangmei Deng, Takaaki Sokabe
    • Organizer
      第126回日本解剖学会 第98回日本生理学会大会 合同大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ショウジョウバエの温度嗜好性の基盤となる温度受容メカニズム Thermo-sensing mechanisms underlying temperature preference in fruit flies2020

    • Author(s)
      曽我部隆彰, 富永真琴
    • Organizer
      第97回日本生理学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] A unique switch in thermal preference in Drosophila larvae depends on rhodopsins/lipases/TRPA1 signal pathway.2018

    • Author(s)
      Takaaki Sokabe, Craig Montell
    • Organizer
      59th Annual Drosophila Research Conference
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Rhodopsins, lipases and trpA1 channel contribute to a unique switch in thermal preference in Drosophila melanogaster larvae.2018

    • Author(s)
      曽我部隆彰
    • Organizer
      The 13th Japanese Drosophila Research Conference
    • Related Report
      2018 Research-status Report

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

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