• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of a platform for rapid structural analysis of transient protein complexes.

Planned Research

Project AreaMulti-scale platform for untangling physiological complexity
Project/Area Number 21H05112
Research Category

Grant-in-Aid for Transformative Research Areas (B)

Allocation TypeSingle-year Grants
Review Section Transformative Research Areas, Section (II)
Research InstitutionKansai Medical University

Principal Investigator

SUNO Ryoji  関西医科大学, 医学部, 准教授 (60447521)

Co-Investigator(Kenkyū-buntansha) 加藤 貴之  大阪大学, 蛋白質研究所, 教授 (20423155)
藤田 大士  京都大学, 高等研究院, 准教授 (20713564)
Project Period (FY) 2021-08-23 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥40,950,000 (Direct Cost: ¥31,500,000、Indirect Cost: ¥9,450,000)
Fiscal Year 2023: ¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
Fiscal Year 2022: ¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
Fiscal Year 2021: ¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
KeywordsGPCR / クライオ電子顕微鏡単粒子解析 / シグナル伝達 / SBDD / 膜タンパク質 / 鎮痛 / 創薬 / バイアスドリガンド / X線結晶構造解析 / 自己集合ナノケージ
Outline of Research at the Start

創薬ターゲットとして知られているG蛋白質共役受容体(GPCR)の一種であるオピオイド受容体の複合体形成を介したシグナル伝達機構の全貌を、X線結晶構造解析およびクライオ電子顕微鏡の単粒子解析(Cryo-electron microscopy single particle analysis : Cryo-EM SPA)によって原子分解能レベルで明らかにすることを目的とする。また、困難である過渡的タンパク質複合体の構造解析を実現するために、Cryo-EM SPAと自己集合型ナノケージを組み合わせた複合体安定化技術を開発し、迅速な構造解析プラットフォームの構築も目指す。

Outline of Final Research Achievements

In this research area, complex physiological actions that emerge as multidimensional outputs are examined by breaking them down into the dimensions of molecules (Suno Group), cells (Inoue Group), individuals (Sakurai Group) and regulation (Saito Group), and are described and visualised in the form of superposition of "elementary processes" at the scale of molecules, cells and individuals. The Suno group is in charge of the molecular phase and aims to clarify the whole picture of the signalling mechanism via opioid receptors (κ and δ opioid receptors (KOR and DOR)) at the atomic resolution level by single particle analysis using cryo-electron microscopy. The structures of three biased ligand-bound states in the KOR and one balanced ligand-bound state in the DOR and one balanced ligand-bound state in the KOR and DOR, respectively, have been determined.

Academic Significance and Societal Importance of the Research Achievements

μ、δ、κオピオイド受容体(MOR, DOR, KOR)の作動薬は鎮痛効果があり、とくにMORの作動薬であるモルヒネはがん性疼痛などに顕著な効果を示す。一方で、薬物依存などの重篤な副作用を示すため、その使用法は制限されている。多くの製薬企業などの研究機関がMOR作動薬の副作用を軽減する努力が長年行われてきたが未だに成功していない。本研究では鎮痛効果を示すDOR, KORの作動薬に着目し、様々な性質をもつ作動薬が結合したDOR, KORの立体構造を決定した。副作用を示す作動薬と副作用が弱い作動薬の結合状態を比較し、副作用の発現メカニズムを検討した。この構造情報は副作用のない薬剤開発に貢献できる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (19 results)

All 2024 2023 2022 2021

All Journal Article (8 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 8 results,  Open Access: 5 results) Presentation (10 results) (of which Int'l Joint Research: 1 results,  Invited: 9 results) Book (1 results)

  • [Journal Article] Interaction modes of human orexin 2 receptor with selective and nonselective antagonists studied by NMR spectroscopy2024

    • Author(s)
      Imamura Kayo、Akagi Ken-Ichi、Miyanoiri Yohei、Tsujimoto Hirokazu、Hirokawa Takatsugu、Ashida Hideo、Murakami Kaori、Inoue Asuka、Suno Ryoji、Ikegami Takahisa、Sekiyama Naotaka、Iwata So、Kobayashi Takuya、Tochio Hidehito
    • Journal Title

      Structure

      Volume: 32 Issue: 3 Pages: 352-361

    • DOI

      10.1016/j.str.2023.12.008

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Exploring Diverse Signaling Mechanisms of G Protein-Coupled Receptors through Structural Biology2024

    • Author(s)
      Suno Ryoji
    • Journal Title

      The Journal of Biochemistry

      Volume: 00 Issue: 4 Pages: 1-9

    • DOI

      10.1093/jb/mvae018

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structural insights into the G protein selectivity revealed by the human EP3-Gi signaling complex2022

    • Author(s)
      Ryoji Suno, Yukihiko Sugita, Kazushi Morimoto, Hiroko Takazaki, Hirokazu Tsujimoto, Mika Hirose, Chiyo Suno-Ikeda, Norimichi Nomura, Tomoya Hino, Asuka Inoue, Kenji Iwasaki, Takayuki Kato, So Iwata, Takuya Kobayashi
    • Journal Title

      Cell Rep.

      Volume: 40(11) Issue: 11 Pages: 111323-111323

    • DOI

      10.1016/j.celrep.2022.111323

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Molecular basis for anti-insomnia drug design from structure of lemborexant-bound orexin 2 receptor2022

    • Author(s)
      Asada Hidetsugu、Im Dohyun、Hotta Yunhon、Yasuda Satoshi、Murata Takeshi、Suno Ryoji、Iwata So
    • Journal Title

      Structure

      Volume: 30 Issue: 12 Pages: 1582-1589.e4

    • DOI

      10.1016/j.str.2022.11.001

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Liquid Chromatography-Mass Spectrometry Method to Study the Interaction between Membrane Proteins and Low-Molecular-Weight Compound Mixtures2022

    • Author(s)
      Hideo Ogiso, Ryoji Suno, Takuya Kobayashi, Masashi Kawami, Mikihisa Takano, Masaru Ogasawara
    • Journal Title

      Molecules

      Volume: 27(15) Issue: 15 Pages: 4889-4889

    • DOI

      10.3390/molecules27154889

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Vibrational spectroscopy analysis of ligand efficacy in human M2 muscarinic acetylcholine receptor (M2R)2021

    • Author(s)
      Katayama Kota、Suzuki Kohei、Suno Ryoji、Kise Ryoji、Tsujimoto Hirokazu、Iwata So、Inoue Asuka、Kobayashi Takuya、Kandori Hideki
    • Journal Title

      Communications Biology

      Volume: 4 Issue: 1 Pages: 1-10

    • DOI

      10.1038/s42003-021-02836-1

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cryo-EM structure of the human MT1-Gi signaling complex.2021

    • Author(s)
      Okamoto, H. H., Miyauchi, H., Inoue, A., Raimondi, F., Tsujimoto, H., Kusakizako, T., Shihoya, W., Yamashita, K., Suno, R., Nomura, N., Kobayashi, T., Iwata, S., Nishizawa, T. and Nureki, O.
    • Journal Title

      Nat. Struct. Mol. Biol.

      Volume: 28 Issue: 8 Pages: 694-701

    • DOI

      10.1038/s41594-021-00634-1

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Vibrational analysis of acetylcholine binding to the M2 receptor2021

    • Author(s)
      Suzuki K, Katayama K, Sumii Y, Nakagita T, Suno R, Tsujimoto H, Iwata S, Kobayashi T, Shibata N and Kandori H
    • Journal Title

      RSC. Adv.

      Volume: 11 Issue: 21 Pages: 12559-12567

    • DOI

      10.1039/d1ra01030a

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] バイアスドリガンドによるヒトκオピオイド受容体シグナル伝達の構造的洞察2023

    • Author(s)
      寿野 良二
    • Organizer
      第46回日本分子生物学会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Structural and dynamic insights into the biased signaling mechanism of the kappa opioid receptor2023

    • Author(s)
      寿野 良二
    • Organizer
      生理学研究会2023
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Structural insights into human kappa opioid receptor signaling by biased ligand2023

    • Author(s)
      寿野 良二
    • Organizer
      第61回日本生物物理学会(名古屋)
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] G蛋白質共役受容体の多様な機能発現機構の構造生物学的解明2023

    • Author(s)
      寿野 良二
    • Organizer
      東京理科大学 研究推進機構 総合研究院 2023年度 生物環境イノベーション研究部門・公開シンポジウム
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Structural insights into the human Prostaglandin E receptor EP3-Gi signaling complex.2023

    • Author(s)
      Ryoji Suno
    • Organizer
      GPCR workshop
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] プロスタグランジン受容体の構造解析によるシグナル伝達機構の解明2023

    • Author(s)
      寿野 良二
    • Organizer
      日本薬学会第143年会(札幌)
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 創薬に資するGPCRの構造生物学2022

    • Author(s)
      寿野 良二
    • Organizer
      Neuro2022
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 構造生物学的技術によるGPCRの多様なシグナル伝達機構の解明2022

    • Author(s)
      寿野 良二
    • Organizer
      第95回 日本生化学会(名古屋)
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] ヒトプロスタグランジン受容体EP3-Gタンパク質複合体の構造解析2021

    • Author(s)
      寿野 良二
    • Organizer
      第59回日本生物物理学会年会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] ヒトプロスタグランジンE2受容体EP3-Gタンパク質複合体のクライオ電子顕微鏡単粒子解析2021

    • Author(s)
      寿野 良二
    • Organizer
      第21回日本蛋白質科学会年会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Book] クライオ電子顕微鏡ハンドブック2023

    • Author(s)
      寿野 良二、清水(小林)拓也
    • Total Pages
      460
    • Publisher
      NTS
    • Related Report
      2023 Annual Research Report 2022 Annual Research Report

URL: 

Published: 2021-10-22   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi