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

Strucutral physiology of P-type ATPases

Research Project

Project/Area Number 21H02426
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 43030:Functional biochemistry-related
Research InstitutionNagoya University

Principal Investigator

ABE Kazuhiro  名古屋大学, 細胞生理学研究センター, 准教授 (60596188)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2023: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2022: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2021: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
KeywordsP-type ATPase / membrane protein / Cryo-EM / gastric proton pump / Flippase / biochemistry / structgural biology / 膜タンパク質 / 能動輸送体 / 構造解析 / 生化学 / 胃プロトンポンプ / AI / 膜輸送体 / P型ATPase / 脂質 / プロトンポンプ / フリッパーゼ
Outline of Research at the Start

生命の根幹とも言える細胞膜を隔てた物質不均衡分布は、主としてカチオンの能動輸送体(イオンポンプ)として知られるP型ATPaseファミリーによって作り出される。この中で、
・100万倍のH+濃度勾配を作り出す胃プロトンポンプ
・アポトーシスに関与するリン脂質フリッパーゼATP11C
これら2つのユニークなポンプの作動機構解明を目指す。

Outline of Final Research Achievements

We determined binding mode of several inhibitors/drugs (Tanaka et al., 2021, J Med Chem). Using these drug-bound structures as template, we developed De novo inhibitors employing AI-driven pratform (Abe et al., 2022, Commun Biol).
To clarify the specificity of cation transport among closely-related isoforms, we generate a mutant proton pump in which two K+ is bound (Abe et al., 2021, Nat Cmooun) and a mutant that behave like sodium pump (Young et al., 2022, Nat Commun).
We also determined cryo-EM structure of a soium pump isoform expressed in brine shrimp living in dead sea (Artigas et al., 2023, PNAS)

Academic Significance and Societal Importance of the Research Achievements

構造とAIを駆使したドラッグデザインの枠組みは、胃プロトンポンプだけでなく、薬剤結合構造既知のタンパク質一般に広く応用が期待される。
プロトンポンプの輸送イオンを変換することに成功したことによって、近縁のカチオンポンプの作動機構の理解に大きく貢献した。

Report

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

    (14 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (2 results) Journal Article (9 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 9 results,  Open Access: 4 results) Presentation (3 results) (of which Int'l Joint Research: 2 results,  Invited: 3 results)

  • [Int'l Joint Research] University of Southern Denmark(デンマーク)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Texas Tech Univ(米国)

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Specific protonation of acidic residues confers K+ selectivity to the gastric proton pump2024

    • Author(s)
      Madapally Hridya Valia、Abe Kazuhiro、Dubey Vikas、Khandelia Himanshu
    • Journal Title

      Journal of Biological Chemistry

      Volume: 300 Issue: 1 Pages: 105542-105542

    • DOI

      10.1016/j.jbc.2023.105542

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Three structures of PSI-LHCI from Chlamydomonas reinhardtii suggest a resting state re-activated by ferredoxin2023

    • Author(s)
      Gerle Christoph、Misumi Yuko、Kawamoto Akihiro、Tanaka Hideaki、Kubota-Kawai Hisako、Tokutsu Ryutaro、Kim Eunchul、Chorev Dror、Abe Kazuhiro、Robinson Carol V.、Mitsuoka Kaoru、Minagawa Jun、Kurisu Genji
    • Journal Title

      Biochimica et Biophysica Acta (BBA) - Bioenergetics

      Volume: 1864 Issue: 4 Pages: 148986-148986

    • DOI

      10.1016/j.bbabio.2023.148986

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] An unusual conformation from Na+-sensitive non-gastric proton pump mutants reveals molecular mechanisms of cooperative Na+-binding2023

    • Author(s)
      Abe Kazuhiro、Nishizawa Tomohiro、Artigas Pablo
    • Journal Title

      Biochimica et Biophysica Acta (BBA) - Molecular Cell Research

      Volume: 1870 Issue: 7 Pages: 119543-119543

    • DOI

      10.1016/j.bbamcr.2023.119543

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Deep learning driven de novo drug design based on gastric proton pump structures2023

    • Author(s)
      Abe Kazuhiro、Ozako Mami、Inukai Miki、Matsuyuki Yoe、Kitayama Shinnosuke、Kanai Chisato、Nagai Chiaki、Gopalasingam Chai C.、Gerle Christoph、Shigematsu Hideki、Umekubo Nariyoshi、Yokoshima Satoshi、Yoshimori Atsushi
    • Journal Title

      Communications Biology

      Volume: 6 Issue: 1 Pages: 956-956

    • DOI

      10.1038/s42003-023-05334-8

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Na pump with reduced stoichiometry is up-regulated by brine shrimp in extreme salinities2023

    • Author(s)
      Artigas Pablo、Meyer Dylan J.、Young Victoria C.、Spontarelli Kerri、Eastman Jessica、Strandquist Evan、Rui Huan、Roux Beno?t、Birk Matthew A.、Nakanishi Hanayo、Abe Kazuhiro、Gatto Craig
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 120 Issue: 52

    • DOI

      10.1073/pnas.2313999120

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Structure and function of H+/K+ pump mutants reveal Na+/K+ pump mechanisms2022

    • Author(s)
      Young Victoria C.、Nakanishi Hanayo、Meyer Dylan J.、Nishizawa Tomohiro、Oshima Atsunori、Artigas Pablo、Abe Kazuhiro
    • Journal Title

      Nature Communications

      Volume: 13 Issue: 1 Pages: 5270-5270

    • DOI

      10.1038/s41467-022-32793-0

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Cryo-EM of the ATP11C flippase reconstituted in Nanodiscs shows a distended phospholipid bilayer inner membrane around transmembrane helix 22022

    • Author(s)
      Nakanishi Hanayo、Hayashida Kenichi、Nishizawa Tomohiro、Oshima Atsunori、Abe Kazuhiro
    • Journal Title

      Journal of Biological Chemistry

      Volume: 298 Issue: 1 Pages: 101498-101498

    • DOI

      10.1016/j.jbc.2021.101498

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Structural Basis for Binding of Potassium-Competitive Acid Blockers to the Gastric Proton Pump2022

    • Author(s)
      Tanaka Saki、Morita Mikio、Yamagishi Tatsuya、Madapally Hridya Valia、Hayashida Kenichi、Khandelia Himanshu、Gerle Christoph、Shigematsu Hideki、Oshima Atsunori、Abe Kazuhiro
    • Journal Title

      Journal of Medicinal Chemistry

      Volume: 65 Issue: 11 Pages: 7843-7853

    • DOI

      10.1021/acs.jmedchem.2c00338

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Gastric proton pump with two occluded K+ engineered with sodium pump-mimetic mutations2021

    • Author(s)
      Abe Kazuhiro、Yamamoto Kenta、Irie Katsumasa、Nishizawa Tomohiro、Oshima Atsunori
    • Journal Title

      Nature Communications

      Volume: 12 Issue: 1 Pages: 5709-5709

    • DOI

      10.1038/s41467-021-26024-1

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] ナトリウムポンプのつくりかた2023

    • Author(s)
      阿部一啓
    • Organizer
      日本薬学会第143年会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] How to make a Na+ pump2022

    • Author(s)
      Kazuhiro Abe
    • Organizer
      The 60th Annual Meeting of the Biophysical Society of Japan
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Structural Physiology of the Gastric Proton pump and the Lipid Flippase2022

    • Author(s)
      Kazuhiro Abe
    • Organizer
      P-Type ATPases in Health and Disease
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi