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Challenges to the structural change analysis of G Protein-Coupled Receptors

Research Project

Project/Area Number 20K21392
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 43:Biology at molecular to cellular levels, and related fields
Research InstitutionKyoto University

Principal Investigator

Shimamura Tatsuro  京都大学, 医学研究科, 特定准教授 (90391979)

Project Period (FY) 2020-07-30 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2021: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2020: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
KeywordsGPCR / XFEL / 受容体 / X線自由電子レーザー
Outline of Research at the Start

X線自由電子レーザーを利用した時分割測定は、タンパク質の触媒反応や構造変化などの様子を連続的なスナップショットとして解析できる新しい手法として期待されている。この手法は、光の照射で構造変化を開始する光感受性のタンパク質に対しては適用しやすいが、光非感受性のタンパク質に対しては適用が難しい。本研究計画は、光非感受性のタンパク質であるGタンパク質共役型受容体(GPCR)について、X線自由電子レーザーを利用した時分割測定に挑戦するものである。

Outline of Final Research Achievements

X-ray free electron laser can be used for the time-resolved serial femtosecond crystallography to observe conformational changes of proteins at high resolution. In this study, we challenged to obtain crystals in the apo state for the time-resolved serial femtosecond crystallography of G protein-coupled receptors (GPCRs) that undergo conformational changes to active or inactive form upon ligand binding. The crystals of GPCRs in the apo state are essential to observe the dynamic conformational changes by the ligand binding. In this study, the crystals of the apo state of the dopamine D2 receptor was successfully obtained that diffracted to 2.8 angstrom.

Academic Significance and Societal Importance of the Research Achievements

タンパク質の多くは、動作することで機能を果たしていため、生命現象を理解するには、タンパク質の動きの過程を解明することが必須である。X線自由電子レーザー(XFEL)は、X線とレーザーの性質を併せ持つ新しいX線で、XFELを利用した時分割測定によりタンパク質の構造変化を高分解能で観測することが可能となった。本研究ではドパミンD2受容体について、時分割測定に必須であるアポ状態の構造解析に成功した。分解能の改善により時分割測定にが可能となれば、ドパミンD2受容体の機能上、創薬上の重要な知見が取得できると期待される。

Report

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

    (8 results)

All 2023 2022 2021 2020

All Journal Article (6 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 5 results,  Open Access: 4 results) Book (2 results)

  • [Journal Article] Structure and mechanism of oxalate transporter OxlT in an oxalate-degrading bacterium in the gut microbiota2023

    • Author(s)
      Jaunet-Lahary Titouan、Shimamura Tatsuro、Hayashi Masahiro、Nomura Norimichi、Hirasawa Kouta、Shimizu Tetsuya、Yamashita Masao、Tsutsumi Naotaka、Suehiro Yuta、Kojima Keiichi、Sudo Yuki、Tamura Takashi、Iwanari Hiroko、Hamakubo Takao、Iwata So、Okazaki Kei-ichi、Hirai Teruhisa、Yamashita Atsuko
    • Journal Title

      Nature Communications

      Volume: 14 Issue: 1 Pages: 1730-1730

    • DOI

      10.1038/s41467-023-36883-5

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] S1PR3?G12-biased agonist ALESIA targets cancer metabolism and promotes glucose starvation2021

    • Author(s)
      Toyomoto Masayasu、Inoue Asuka、Iida Kei、Denawa Masatsugu、Kii Isao、Ngako Kadji Francois Marie、Kishi Takayuki、Im Dohyun、Shimamura Tatsuro、Onogi Hiroshi、Yoshida Suguru、Iwata So、Aoki Junken、Hosoya Takamitsu、Hagiwara Masatoshi
    • Journal Title

      Cell Chemical Biology

      Volume: 未定 Issue: 8 Pages: 1132-1144

    • DOI

      10.1016/j.chembiol.2021.01.004

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] GPCRの構造解析研究2021

    • Author(s)
      島村達郎
    • Journal Title

      医学のあゆみ

      Volume: 278 Pages: 537-579

    • Related Report
      2021 Research-status Report
  • [Journal Article] Time-resolved serial femtosecond crystallography reveals early structural changes in channelrhodopsin2021

    • Author(s)
      Oda Kazumasa、Nomura Takashi、Nakane Takanori、Yamashita Keitaro、Inoue Keiichi、Ito Shota、Vierock Johannes、Hirata Kunio、Maturana Andres D、Katayama Kota、( 32 authers )、Kandori Hideki、Hegemann Peter、Iwata So、Kubo Minoru、Nishizawa Tomohiro、Nureki Osamu
    • Journal Title

      eLife

      Volume: 10 Pages: 1-21

    • DOI

      10.7554/elife.62389

    • NAID

      120006996980

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Structure of the dopamine D2 receptor in complex with the antipsychotic drug spiperone2020

    • Author(s)
      Im Dohyun、Inoue Asuka、Fujiwara Takaaki、Nakane Takanori、Yamanaka Yasuaki、Uemura Tomoko、Mori Chihiro、Shiimura Yuki、Kimura Kanako Terakado、Asada Hidetsugu、Nomura Norimichi、Tanaka Tomoyuki、Yamashita Ayumi、Nango Eriko、Tono Kensuke、Kadji Francois Marie Ngako、Aoki Junken、Iwata So、Shimamura Tatsuro
    • Journal Title

      Nature Communications

      Volume: 11 Issue: 1 Pages: 1-11

    • DOI

      10.1038/s41467-020-20221-0

    • NAID

      120006943309

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The Crystal Structure of Angiotensin II Type 2 Receptor with Endogenous Peptide Hormone2020

    • Author(s)
      Asada Hidetsugu、Inoue Asuka、Ngako Kadji Francois Marie、Hirata Kunio、Shiimura Yuki、Im Dohyun、Shimamura Tatsuro、Nomura Norimichi、Iwanari Hiroko、Hamakubo Takao、Kusano-Arai Osamu、Hisano Hiromi、Uemura Tomoko、Suno Chiyo、Aoki Junken、Iwata So
    • Journal Title

      Structure

      Volume: 28 Issue: 4 Pages: 418-425.e4

    • DOI

      10.1016/j.str.2019.12.003

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Book] 構造生命科学による創薬への挑戦2022

    • Author(s)
      岩崎憲治(編)、島村達郎ら
    • Total Pages
      146
    • Publisher
      医歯薬出版
    • Related Report
      2022 Annual Research Report
  • [Book] 創薬研究のための相互作用解析パーフェクト2021

    • Author(s)
      津本浩平、前仲勝実、島村達郎ら
    • Total Pages
      368
    • Publisher
      羊土社
    • ISBN
      9784758122566
    • Related Report
      2021 Research-status Report

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Published: 2020-08-03   Modified: 2024-01-30  

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