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Understanding and modelizing of selective GPCR-G-protein coupling mechanism

Research Project

Project/Area Number 16K00403
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Life / Health / Medical informatics
Research InstitutionAoyama Gakuin University

Principal Investigator

SUWA MAKIKO  青山学院大学, 理工学部, 教授 (30242241)

Co-Investigator(Kenkyū-buntansha) 池田 修己  国立研究開発法人産業技術総合研究所, 人工知能研究センター, 主任研究員 (20415772)
Research Collaborator Manaka Tomomi  
Kasado Risako  
Horiguchi Wataru  
Kawamura Mayu  
Shinozaki Ryuji  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
KeywordsGタンパク質共役型受容体 / Gタンパク質 / 結合選択性予測 / シグナル伝達パスウェイ / アドレナリン受容体構造 / 分子動力学計算 / 機械学習 / Gタンパク質 / GPCR / 共役選択性予測 / シグナル伝達 / バイオインフォマティクス / 分子シミュレーション / 機械シミュレーション / Gタンパク質共役型受容体 / 分子動力学シミュレーション
Outline of Final Research Achievements

We collected combination data of ligand-GPCR-G protein from literature and DB, and converted them into 934 vectors using physico-chemical quantity. In addition, as a result of MD calculation of the structure substituted by 16 kinds of G proteins and 9 kinds of AR based on Gs & β2 adrenergic receptor (AR) complex structure (3SN6), it is characterized between identical G protein coupling receptors, the interaction profiles were obtained, from which the regions contributing to the selective coupling of G proteins were identified. The amino acids in this region described by physico-chemical quantities were added to 934 vectors, and a G-protein coupling selectivity prediction program was created by using machine learning method (SVM). This program can distinguish 16 kinds of coupling G protein species with high accuracy (cross-validation: 94.4%, objective test: 95.0%).

Academic Significance and Societal Importance of the Research Achievements

Gタンパク共役型受容体(GPCR)は、細胞外からリガンド分子と結合し、構造変化することで細胞内側のGタンパク質を選択的に活性化させ、後の伝達経路につなげる。本研究はこれら一連のメカニズムを解明することを第一の目的とし、このメカニズムを再現するシグナル伝達経路予測システムの構築を最終目的とする。本研究の結果は、例えば生命現象の予測、制御、副作用の少ない薬剤のデザイン,GPCRが関与する疾病のメカニズム解明につながる。つまりGPCRのシグナル伝達のメカニズムを網羅的かつ統合的に理解する道筋ができ、細胞内での生命現象を予測して創薬支援となる基盤が確立できると考える。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (12 results)

All 2019 2018 2017 2016 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 1 results) Remarks (2 results)

  • [Journal Article] SEVENS: a database for comprehensive GPCR genes obtained from genomes2018

    • Author(s)
      Masami Ikeda, Minoru Sugihara, Makiko Suwa
    • Journal Title

      Biophysics and Physicobiology

      Volume: 15 Issue: 0 Pages: 104-110

    • DOI

      10.2142/biophysico.15.0_104

    • NAID

      130006728156

    • ISSN
      2189-4779
    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] GPCRを起点とする細胞内シグナル伝達パスウェイ推定2019

    • Author(s)
      諏訪牧子
    • Organizer
      青山学院大学 CAT・CAIR 研究成果報告会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 機械学習法を用いた生体表面膜タンパク質の網羅的機能予測2019

    • Author(s)
      諏訪牧子
    • Organizer
      青山学院大学ライフサイエンスセミナー2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] GPCRと複数種のGタンパク質の選択的共役予測2019

    • Author(s)
      川村茉由、笠戸理佐子、間中智美、堀口渉、篠崎竜二、池田修己、諏訪牧子
    • Organizer
      第15回GPCR研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 膜環境におけるヘリックス間の相互作用パターン解析2018

    • Author(s)
      酒井将人、池田修己、諏訪牧子
    • Organizer
      生物物理学会 関東支部会
    • Related Report
      2017 Research-status Report
  • [Presentation] 膜タンパク質電顕画像と立体構造の照合(高速・高精度化)2018

    • Author(s)
      篠崎竜二、池田修己、諏訪牧子
    • Organizer
      生物物理学会、関東支部会
    • Related Report
      2017 Research-status Report
  • [Presentation] Analysis of helix interaction pattern in each biological membrane environment2017

    • Author(s)
      Masato Sakai, Masami Ikeda, Makiko Suwa
    • Organizer
      The 55 th annual Meeting of the Biological Society of Japan, In Kumamoto Univ.
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 膜タンパク質の構造分類:93フォールドの同定2016

    • Author(s)
      上野束紗、酒井将人、池田修己、諏訪牧子
    • Organizer
      第54回日本生物物理学会年会
    • Place of Presentation
      つくば国際会議場
    • Year and Date
      2016-11-25
    • Related Report
      2016 Research-status Report
  • [Presentation] Ligand prediction of orphan GPCRs based on physicochemical characters of ligand binding pocket.2016

    • Author(s)
      諏訪牧子
    • Organizer
      IIBMP2016
    • Place of Presentation
      お台場平成プラザ
    • Year and Date
      2016-10-29
    • Related Report
      2016 Research-status Report
  • [Presentation] GPCRの細胞内シグナル伝達パスウェイの可視化データベースの構築2016

    • Author(s)
      諏訪 牧子
    • Organizer
      GPCR研究会
    • Place of Presentation
      みらい科学館
    • Year and Date
      2016-05-15
    • Related Report
      2016 Research-status Report
  • [Remarks] プロジェクト6:細胞表面タンパク質の網羅的な機能推定アルゴリズム開発(諏訪 牧子)

    • URL

      http://www.agnes.aoyama.ac.jp/cair/2019projects/project6/

    • Related Report
      2018 Annual Research Report
  • [Remarks] 青山学院大学 研究者情報 諏訪牧子

    • URL

      http://www.agnes.aoyama.ac.jp/bio/faculty/suwa.html

    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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