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

Identification of potential functional sites through spatial clustering of disease-associated missense variants in protein structures

Research Project

Project/Area Number 21H03551
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 62010:Life, health and medical informatics-related
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Kenichiro Imai  国立研究開発法人産業技術総合研究所, 生命工学領域, 研究グループ長 (80442573)

Co-Investigator(Kenkyū-buntansha) 土方 敦司  東京薬科大学, 生命科学部, 准教授 (80415273)
本野 千恵  国立研究開発法人産業技術総合研究所, 生命工学領域, 主任研究員 (80415752)
足達 俊吾  国立研究開発法人国立がん研究センター, 研究所, 部門長 (90783803)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2023: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2022: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2021: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Keywords疾患関連変異 / タンパク質機能予測 / クリプティックサイト / AlphaFold / 共溶媒分子動力学シミュレーション / アロステリックサイト / タンパク質機能推定 / 共溶媒分子動力学計算 / 疾患関連変異分布 / タンパク質構造 / クリプトサイト / アロステリック制御
Outline of Research at the Start

本研究では、疾患関連変異をタンパク質の立体構造上でのクラスタ(3D変異クラスタ)という単位でとらえ、3D変異クラスタを基点とした未発見の機能部位探索法を提案する。疾患関連変異は、機能部位近辺に集積する傾向がある一方、既知の機能部位に紐づかないクラスタは、未発見の機能部位を指し示す可能性がある。そこで、網羅的な3D変異クラスタの同定及び未知の機能部位候補探索を行う。未発見の機能部位は、クリプトサイトやアロステリック制御部位など動的に生じる可能性が高いため、分子動力学計算を中心とした機能推定及び実験的検証を行う。見出される新たな機能部位は、タンパク質の機能解明や新規創薬標的の創出の一助となる。

Outline of Final Research Achievements

The accumulation of disease-associated mutations within specific regions of a protein structure is often closely linked to its functional sites. In this study, we analyzed the spatial distribution of disease-associated missense variants on protein 3D structures by identifying clusters of mutations (referred to as 3D variant clusters), and used these clusters as a basis for exploring undiscovered functional sites. By incorporating both experimentally determined protein structures and AlphaFold2-predicted structures, we identified approximately 350 and 580 3D variant clusters, respectively, that may represent undiscovered functional sites. Some of these candidates are likely to correspond to cryptic sites. To refine and validate these potential cryptic sites, we also developed a novel cryptic site prediction method based on mixed solvent molecular dynamics simulations.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果は、タンパク質の機能解明の一助となり、新たな変異情報の有効な利活用方法となる。また、近年、創薬標的の枯渇が心配されているが、本研究により、クリプティックサイトを新たに発見できれば、新規創薬標的候補の創出につながる。さらに、個人ゲノム情報の利用による効果的かつ効率的な疾患の診断、治療、予防法の確立に向けて、タンパク質の機能と疾患関連変異との関連性を明確にすることは重要であり、本研究で得られる網羅的な3D変異クラスタのアノテーション情報は有用なリソースとなる。

Report

(4 results)
  • 2024 Final Research Report ( PDF )
  • 2023 Annual Research Report
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (14 results)

All 2025 2024 2023 2022

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (9 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] CrypToth: Cryptic pocket detection through mixed-solvent molecular dynamics simulations based topological data analysis2025

    • Author(s)
      Koseki J, Motono C, Yanagisawa K, Kudo G, Yoshino R, Hirokawa T, Imai K
    • Journal Title

      J. Chem. Inf. Model

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The origin of esterase activity of Parkinson's disease causative factor DJ-1 implied by evolutionary trace analysis of its prokaryotic homolog HchA2024

    • Author(s)
      Watanabe A, Koyano F, Imai K, Hizukuri Y, Ogiwara S, Ito T, Miyamoto J, Shibuya C, Kimura M, Toriumi K, Motono C, Arai M, Tanaka K, Akiyama Y, Yamano K, Matsuda N.
    • Journal Title

      J Biol Chem.

      Volume: 300(7) Issue: 7 Pages: 107476-107476

    • DOI

      10.1016/j.jbc.2024.107476

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dual recognition of multiple signals in bacterial outer membrane proteins enhances assembly and maintains membrane integrity2024

    • Author(s)
      Germany, E. M., Thewasano, N., Imai, K., Maruno, Y., Bamert, R. S., Stubenrauch, C. J., Dunstan, R. A., Ding, Y., Nakajima, Y., Lai, X., Webb, C. T., Hidaka, K., Tan, K. S., Shen, H., Lithgow, T., Shiota, T.
    • Journal Title

      eLife

      Volume: 12

    • DOI

      10.7554/elife.90274

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Atg15 is a vacuolar phospholipase that disintegrates organelle membranes2023

    • Author(s)
      Watanabe Yasunori、Iwasaki Yurina、Sasaki Kyoka、Motono Chie、Imai Kenichiro、Suzuki Kuninori
    • Journal Title

      Cell Reports

      Volume: 42 Issue: 12 Pages: 113567-113567

    • DOI

      10.1016/j.celrep.2023.113567

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Role of the TOM complex in Protein Import into Mitochondria: Structural Views2022

    • Author(s)
      Yuhei Araiso, Kenichiro Imai, Toshiya Endo
    • Journal Title

      Annual Review of Biochemistry

      Volume: 91 Issue: 1 Pages: 679-703

    • DOI

      10.1146/annurev-biochem-032620-104527

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] 疾患関連変異のタンパク質構造上の三次元分布に基づく新規クリプティックサイト探索2024

    • Author(s)
      本野千恵、鍵和田晴美、小関準、土方敦司、今井賢一郎
    • Organizer
      第47回日本分子生物学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Development of the Cryptic Site searching method with Mixed-solvent molecular dynamics and Topological data analyses methods2024

    • Author(s)
      Jun Koseki, Chie Motono, Keisuke Yanagiswa, Genki Kudo, Ryunosuke Yoshino, Takatsugu Hirokawa, Kenichiro Imai
    • Organizer
      CBI学会2024年大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Cryptic site detection using machine learning based on mixed-solvent molecular dynamics simulations results2024

    • Author(s)
      Chie Motono, Jun Koseki, Keisuke Yanagisawa, Genki Kudo, Ryunosuke Yoshino, Takatsugu Hirokawa, Kenichiro Imai
    • Organizer
      1st Asia & Pacific Bioinformatics Joint Conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of the Cryptic Site searching method with Mixed-solvent molecular dynamics and Topological data analyses methods2024

    • Author(s)
      Jun Koseki, Chie Motono, Keisuke Yanagisawa, Genki Kudo, Ryunosuke Yoshino, Takatsugu Hirokawa, Kenichiro Imai
    • Organizer
      1st Asia & Pacific Bioinformatics Joint Conference
    • Related Report
      2023 Annual Research Report
  • [Presentation] Cryptic site prediction using mixed-solvent molecular dynamics simulation,2024

    • Author(s)
      本野千恵, 柳澤渓甫, 工藤玄己, 広川貴次, 今井賢一郎
    • Organizer
      第24回日本蛋白質科学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] AI技術が加速させるタンパク質構造・機能予測2024

    • Author(s)
      今井賢一郎
    • Organizer
      第46回日本血栓止血学会学術集会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] A search method for novel protein functional site based on the spatial distribution of disease-associated missense variants2023

    • Author(s)
      本野千恵、土方 敦司、広川貴次、今井賢一郎
    • Organizer
      8th Autumn School of Chemoinformatics in Nara
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Searchfor novel protein functional sites based on the spatial distribution of disease-associated missense variants2023

    • Author(s)
      本野千恵、土方 敦司、広川貴次、今井賢一郎
    • Organizer
      第51回構造活性相関シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] A search method for novel protein functional site based on the spatial distribution of disease-associated missense variants2023

    • Author(s)
      本野千恵、土方 敦司、広川貴次、今井賢一郎
    • Organizer
      CBI学会2023年大会
    • Related Report
      2022 Annual Research Report

URL: 

Published: 2021-04-28   Modified: 2026-01-16  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi