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Molecular basis of counteraction against the JAK-STAT signaling pathway by virus

Research Project

Project/Area Number 21H02408
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 43020:Structural biochemistry-related
Research InstitutionHokkaido University

Principal Investigator

Ose Toyoyuki  北海道大学, 先端生命科学研究院, 教授 (80380525)

Co-Investigator(Kenkyū-buntansha) 久米田 博之  北海道大学, 先端生命科学研究院, 学術専門職 (00399966)
杉田 征彦  京都大学, 医生物学研究所, 准教授 (00734469)
于 健  大阪大学, 蛋白質研究所, 特任准教授(常勤) (20587860)
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: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2022: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2021: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
KeywordsJAK-STAT / 相互作用解析 / クライオ電顕解析 / リン酸化 / NMR / 表面プラズモン共鳴 / 超遠心分析 / 複合体解析 / クライオ電顕 / 結晶解析 / シグナル伝達阻害 / ウイルス蛋白質 / クライオ電子顕微鏡
Outline of Research at the Start

ウイルスがどの生物を宿主として選択するかを考える上で,宿主免疫系を不活化できるかどうかは非常に大きな要因である。多くのウイルスは宿主の免疫分子と結合するための蛋白質を準備し,固有の方法で免疫系を制圧する。本申請では,ヒトに重篤な障害・死をもたらすRNAウイルスが,ヒトJAK-STAT経路を不活化する戦略を明らかにする。私達はウイルスの蛋白質および宿主蛋白質を調製し,生化学研究を進めてきた。その結果,蛋白質間相互作用を担う領域が明らかになったため,複合体構造情報を得る。さらに,立体構造および生化学の結果を細胞生物学で評価し,ウイルスの科や属ごとに共通,或いは特異的な特徴を捉える。

Outline of Final Research Achievements

The typical activation step of the JAK-STAT pathway is the phosphorylation of a specific tyrosine residue of STAT molecules to induce reciprocal interactions between two STAT molecules, subsequent to ligand recognition by a cell surface receptor and the JAK activation. Activated STAT molecules are translocated to the nucleus to function as transcriptional factors to induce gene expression, such as for antiviral activity. Complexity of the system arises from not only the generation of both homo and hetero STAT dimers but also the presence of interactions via the N-terminal domain (NTD) of STATs. Due to the interactions between two NTDs, STAT function should be considered as an oligomer rather than a simple dimer. We presented the tetrameric form of pY-STAT in complex with DNA by cryo-EM, revealing a compact conformation that can be seamlessly transformed into a tandem DNA binding model. Based on the tetrameric structure, we can further discuss STAT targeting by virus for immune evasion.

Academic Significance and Societal Importance of the Research Achievements

ウイルスがどの生物を宿主として選択するかを考える上で,宿主免疫系を不活化できるかどうかは非常に大きな要因である。多くのウイルスは宿主の免疫分子と結合するための蛋白質を準備し,固有の方法で免疫系を制圧する。本研究では,宿主免疫分子であるSTATとの相互作用解析,複合体構造解析に成功したため,宿主指向性を分子レベルで理解できた。この情報を用いて,将来的なウイルス変異による宿主指向性の遷移(ドリフト)を予測する研究へと展開し,新興ウイルス対策に繋がるほか,宿主免疫系を不活化しない蛋白質を組み込んだ弱毒ウイルス株設計によるワクチン開発に発展する。

Report

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

    (20 results)

All 2024 2023 2022 Other

All Int'l Joint Research (2 results) Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (14 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results) Book (1 results)

  • [Int'l Joint Research] University of Melbourne/Monash University/Charles Sturt University(オーストラリア)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] University of Melbourne/Monash University(オーストラリア)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] STAP-2-Derived Peptide Suppresses TCR-Mediated Signals to Initiate Immune Responses2023

    • Author(s)
      Sasaki Yuto、Saitoh Kodai、Kagohashi Kota、Ose Toyoyuki、Kawahara Shoya、Kitai Yuichi、Muromoto Ryuta、Sekine Yuichi、Ichii Michiko、Yoshimura Akihiko、Oritani Kenji、Kashiwakura Jun-ichi、Matsuda Tadashi
    • Journal Title

      The Journal of Immunology

      Volume: 211 Issue: 5 Pages: 755-766

    • DOI

      10.4049/jimmunol.2200942

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A peptide derived from adaptor protein STAP-2 inhibits tumor progression by downregulating epidermal growth factor receptor signaling2023

    • Author(s)
      Maemoto Taiga、Kitai Yuichi、Takahashi Runa、Shoji Haruka、Yamada Shunsuke、Takei Shiho、Ito Daiki、Muromoto Ryuta、Kashiwakura Jun-ichi、Handa Haruka、Hashimoto Ari、Hashimoto Shigeru、Ose Toyoyuki、Oritani Kenji、Matsuda Tadashi
    • Journal Title

      Journal of Biological Chemistry

      Volume: 299 Issue: 1 Pages: 102724-102724

    • DOI

      10.1016/j.jbc.2022.102724

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Importance of accessibility to the extracellular juxtamembrane stalk region of membrane protein for substrate recognition by viral ubiquitin ligase K52022

    • Author(s)
      Kajikawa Mizuho、Hata Mizuki、Ishimura Maho、Imaizumi Nanae、Kimura Minako、Miyano Kei、Ose Toyoyuki、Asai Daisuke、Ishido Satoshi、Kanamoto Taisei
    • Journal Title

      Biochemical Journal

      Volume: 479 Issue: 20 Pages: 2261-2278

    • DOI

      10.1042/bcj20220288

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Presentation] 麻疹ウイルスV蛋白質がtype I IFN経路を阻害するメカニズムの考察2024

    • Author(s)
      合田 菜々花,森田 香歩,木本 円花,伊東 大輝,孫 暁梅,久米田 博之,尾瀬 農之
    • Organizer
      2023年度日本生物物理学会 北海道支部・東北支部合同例会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Characterization of measles virus V protein by NMR spectroscopy2023

    • Author(s)
      Kaho Morita, Nanaka Goda, Madoka Kimoto, Daiki Ito, Min Yao, Hiroyuki Kumeta, Toyoyuki Ose
    • Organizer
      第23回日本蛋白質科学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 狂犬病ウイルスP蛋白質による免疫分子阻害機構の解明2023

    • Author(s)
      南 未来,杉山 葵,武川 祐一郎,姚 閔,廣瀬 未果,杉田 征彦,尾瀬 農之
    • Organizer
      第23回日本蛋白質科学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] アダプター蛋白質介在に伴う、乳がん特異的キナーゼの活性亢進評価2023

    • Author(s)
      武井 梓穂, 宇賀神 魁, 中迫 純希, 松尾 樹, 神田 諒, 松田 正, 前仲 勝実, 姚 閔, 尾瀬 農之
    • Organizer
      第23回日本蛋白質科学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Introduction of viral protein study in Hokkaido2023

    • Author(s)
      Toyoyuki Ose
    • Organizer
      WORKSHP: Virology and Structure Biology
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Mechanistic analysis of activation/inhibition of the JAK-STAT pathway2023

    • Author(s)
      尾瀬農之
    • Organizer
      日本薬学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Molecular dissection of the interaction between rabies virus P-protein and molecules2022

    • Author(s)
      Miku Minami, Aoi Sugiyama, Min Yao, Toyoyki Ose
    • Organizer
      日本蛋白質科学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Interaction and functional analysis between Breast tumor kinase and an adaptor protein2022

    • Author(s)
      Shiho Takei, Yuki Matsuo, Ryo Kanda, Junki Nakasako, Katsumi Maenaka, Tadashi Matsuda, Min Yao and Toyoyuki Ose
    • Organizer
      日本蛋白質科学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] タイプIインターフェロン経路を阻害する麻疹ウイルスVタンパク質の機能解析2022

    • Author(s)
      Daiki Ito, Madoka Kimoto, Hirohata Kiichi, Maruno Takahiro, Uchiyama Susumu, Min Yao, Toyoyuki Ose
    • Organizer
      日本生物物理学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Characterization of the minimum region of measles virus V protein to interact with STAT22022

    • Author(s)
      Goda Nanaka, Kimoto Madoka, Ito Daiki, Morita Kaho, Kumeta Hiroyuki, Yao Min, Ose Toyoyuki
    • Organizer
      日本生物物理学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 狂犬病ウイルスのP蛋白質が宿主のJAK-STAT経路を阻害する分子機構の解明2022

    • Author(s)
      Aoi Sugiyama,Miku Minami,Yukihiko Sugita,Mika Hirose,Shunsuke Kita,Katsumi Maenaka,Min Yao,Toyoyuki Ose
    • Organizer
      日本生物物理学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] アダプター分子介在による Breast tumor kinaseのリン酸化能亢進機構の解明2022

    • Author(s)
      武井梓穂,松尾友樹,神田諒,中迫純希,前仲勝実,松田正,姚閔,尾瀬農之
    • Organizer
      生物物理北海道・東北合同支部会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Mechanistic analysis of type I interferon pathway inhibition by Measles virus V protein2022

    • Author(s)
      Daiki Ito, Madoka Kimoto, Hirohata Kiichi, Maruno Takahiro, Uchiyama Susumu, Min Yao, Toyoyuki Ose
    • Organizer
      生物物理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Characterization of the minimum region of measles virus V protein for the interaction with STAT22022

    • Author(s)
      Goda Nanaka, Kimoto Madoka, Ito Daiki, Morita Kaho, Kumeta Hiroyuki, Yao Min,Ose Toyoyuki
    • Organizer
      生物物理学会年会
    • Related Report
      2021 Annual Research Report
  • [Book] 量子生命科学ハンドブック2024

    • Author(s)
      瀬藤光利,尾瀬農之 他 計48名
    • Total Pages
      372
    • Publisher
      エヌ・ティー・エス
    • Related Report
      2023 Annual Research Report

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

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