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Chemical regulation of intrinsically disordered proteins in animal and plant cells

Research Project

Project/Area Number 21H02077
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 37030:Chemical biology-related
Research InstitutionShinshu University

Principal Investigator

Ohkanda Junko  信州大学, 学術研究院農学系, 教授 (50233052)

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: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2022: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2021: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Keywords天然変性蛋白質 / 蛋白質間相互作用 / リン酸化翻訳後修飾 / 概日時計転写因子 / フシコクシン / 不可逆的阻害剤 / 植物成長促進剤 / コバレント阻害剤 / 14-3-3 / 蛍光標識 / 植物成長促進活性 / 天然変性たんぱく質 / リン酸化 / mRNA翻訳制御 / 14-3-3シグマ / 蛍光標識剤 / アクリルアミド / 共有結合阻害剤 / イソフォーム特異的 / 概日時計たんぱく質
Outline of Research at the Start

多様な細胞応答に代表される過渡的な生命現象の理解は、天然変性たんぱく質(IDP)の自在な制御を可能とする分子基盤の確立なくしては成し得ない。本研究では、IDPの構造変換とたんぱく質間相互作用の化学的制御を指向した不可逆的IDP阻害剤の創出と、動植物細胞におけるIDPの可逆的亢進操作を機序とするIDP安定化剤の生物活性を検証する。具体的には① 神経発達障害に関連するIDPを対象とした共有結合阻害剤の創出、② 14-3-3たんぱく質sigma isoform選択的な蛍光標識薬の開発、③ IDP-PPIの安定化を機序とする線虫の寿命延伸活性および植物生長促進活性、を検証する。

Outline of Final Research Achievements

Naturally denatured proteins (IDPs), which do not have a fixed structure under physiological conditions, are extremely important players in biological reactions and have attracted attention as new drug targets because of their involvement in various diseases. However, there is no rational IDP drug discovery strategy due to experimental difficulties. In this study, we prepared a library of electrophilic small molecules and identified compounds that significantly inhibit the interaction between the circadian clock transcription factor BMAL1 and CLOCK. We also focused on 14-3-3, a regulatory protein of phosphorylated IDPs, and succeeded in creating 14-3-3 sigma-selective fluorescent labeling agents that react with specific cysteine residues. We also succeeded in promoting plant growth with a compound that stabilizes the 14-3-3/IDP interaction in plant guard cells.

Academic Significance and Societal Importance of the Research Achievements

天然変性蛋白質(IDP)についてはその生物学的役割の重要性と多様な疾患との関りが明らかにされつつある一方で、構造情報が欠けまた実験的な扱いが難しいことから従来の創薬技術が適用できない創薬困難な標的として知られる。本研究の成果は、IDPの制御においては共有結合反応性の不可逆的阻害剤の有効性を示した点、IDPの制御因子側に着目した化学戦略によりIDP選択的な化学制御の可能性を示唆した点、さらに植物体内のIDP相互作用の安定化により個体成長を促進可能であることを証明した点において、創薬及び農学の見地から学術的意義および社会的意義があると考えられる。

Report

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

    (37 results)

All 2024 2023 2022 2021 Other

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (28 results) (of which Int'l Joint Research: 5 results,  Invited: 13 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Functional evaluation of an electrophilic focused library to identify a covalent inhibitor against intrinsically disordered circadian clock transcription factors2024

    • Author(s)
      Kazuya Yamanaka,Yoshihisa Inoue,Miki Imanishi,Junko Ohkanda
    • Journal Title

      Bioorganic & Medicinal Chemistry Letters

      Volume: 98 Pages: 129588-129588

    • DOI

      10.1016/j.bmcl.2023.129588

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Isoform-Selective Fluorescent Labeling of 14-3-3σ by Acrylamide-containing Fusicoccins2023

    • Author(s)
      Kenta Tanaka; Yoshiya Hatano; Junko Ohkanda
    • Journal Title

      Chemistry A European Journal

      Volume: 29 Issue: 41

    • DOI

      10.1002/chem.202301059

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structure-activity-relationship study of semi-synthetically modified fusicoccins on their stabilization effect for 14-3-3-phospholigand interactions2022

    • Author(s)
      Nanami Ogino, Ryoma Masuda, Louvy Lynn Punzalan, Emi Yamashita, Shota Igaue, Yoshihisa Inoue, Junko Ohkanda
    • Journal Title

      Bioorganic & Medicinal Chemistry

      Volume: 73 Pages: 117020-117020

    • DOI

      10.1016/j.bmc.2022.117020

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Expression and purification of DYRK1A kinase domain in complex with its folding intermediate-selective inhibitor FINDY2022

    • Author(s)
      Kimura Ninako、Saito Kanako、Niwa Takashi、Yamakawa Masato、Igaue Shota、Ohkanda Junko、Hosoya Takamitsu、Kii Isao
    • Journal Title

      Protein Expression and Purification

      Volume: 195-196 Pages: 106089-106089

    • DOI

      10.1016/j.pep.2022.106089

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Design, synthesis, and functional evaluation of triazine-based bivalent agents that simultaneously target the active site and hot spot of phosphatase Cdc25B2021

    • Author(s)
      Nagaoka Yosei、Parvatkar Prakash、Hirai Go、Ohkanda Junko
    • Journal Title

      Bioorganic & Medicinal Chemistry Letters

      Volume: 48 Pages: 128265-128265

    • DOI

      10.1016/j.bmcl.2021.128265

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Intrinsically Disordered Proteins as Regulators of Transient Biological Processes and as Untapped Drug Targets2021

    • Author(s)
      Hosoya Yusuke、Ohkanda Junko
    • Journal Title

      Molecules

      Volume: 26 Issue: 8 Pages: 2118-2118

    • DOI

      10.3390/molecules26082118

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fusicoccin: A Chemical Modulator for 14-3-3 Proteins2021

    • Author(s)
      Ohkanda Junko
    • Journal Title

      Chemistry Letters

      Volume: 50 Issue: 1 Pages: 57-67

    • DOI

      10.1246/cl.200670

    • NAID

      130007966028

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] 抗がん活性ジテルペン配糖体はリン酸化依存的な天然変性蛋白質間相互作用を安定化する2024

    • Author(s)
      荻野菜々美、大神田淳子
    • Organizer
      日本化学会第104春季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 親電子性低分子ライブラリによる天然変性概日時計転写因子を標的としたコバレント阻害剤の探索2024

    • Author(s)
      山中和也、大神田淳子
    • Organizer
      日本化学会第104春季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 天然物による翻訳後修飾依存的な蛋白質間相互作用の操作2024

    • Author(s)
      大神田淳子
    • Organizer
      有機合成化学協会関西支部 2月セミナー
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 過渡的蛋白質間相互作用を合成分子で操作する2024

    • Author(s)
      大神田淳子
    • Organizer
      第 23 回 フロンティア生命化学研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 天然植物毒によるリン酸化依存的な蛋白質間相互作用の操作2023

    • Author(s)
      大神田淳子
    • Organizer
      有機合成化学協会・ニューモダリティ研究部会勉強会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 過渡的蛋白質間相互作用の操作に向けた有機化学戦略2023

    • Author(s)
      大神田淳子
    • Organizer
      第2回分子生命反応創発討論会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 14-3-3と翻訳後リン酸化修飾が介在するたんぱく質間相互作用の解明に向けた分子戦略2023

    • Author(s)
      大神田淳子
    • Organizer
      第23回日本蛋白質科学会年会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 14-3-3 が介在するたんぱく質間相互作用は mRNA 翻訳抑制を調節する2023

    • Author(s)
      大神田 淳子、荻野 菜々美、増田 遼馬、伊賀上 祥汰、室井 誠、 長田 裕之、松本 健、吉田 稔、喜井 勲
    • Organizer
      日本ケミカルバイオロジー学会第16回年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Chemically “Edited” Phytotoxin Upregulates Translational Repression2023

    • Author(s)
      大神田淳子
    • Organizer
      The 19th Akabori Conference
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] ジテルペン配糖体フシコクシンと14-3-3たんぱく質の直交性ペアの開発2023

    • Author(s)
      桐山寛生・大神田淳子
    • Organizer
      日本化学会第103春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] KRas超可変領域を模倣した中分子によるKRas脂質修飾の制御2023

    • Author(s)
      堀内直己・大神田淳子
    • Organizer
      日本化学会第103春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Elucidation of the mRNA translational repression machinery by stabilizing 14-3-3-mediated protein-protein interactions2023

    • Author(s)
      荻野 菜々美・室井 誠・長田 裕之・松本 健・吉田 稔・喜井 勲・大神田 淳子
    • Organizer
      日本化学会第103春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 天然変性概日時計転写因子を標的とした親電子反応性コバレント阻害剤の創製と生物活性評価2023

    • Author(s)
      山中 和也・今西 未来・大神田 淳子
    • Organizer
      日本化学会第103春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 天然物によるタンパク質間相互作用の調整とmRNA翻訳抑制2023

    • Author(s)
      大神田 淳子
    • Organizer
      大阪大学蛋白研セミナー
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Fusicoccin:A tool for exploration of 14-3-3-mediated signaling pathways2023

    • Author(s)
      Junko Ohkanda
    • Organizer
      ACBI 2023 Toba Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Chemically modified phytotoxin enhances translational repression by stabilizing 14-3-3 interactions2022

    • Author(s)
      Junko Ohkanda, Nanami Ogino, Ryoma Masuda, Shota Igaue, Makoto Muroi, Hiroyuki Osada, Ken Matsumoto, Minoru Yoshida, Isao Kii
    • Organizer
      ICBS2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] フシコクシンによる14-3-3たんぱく質間相互作用の変調と医農薬への応用2022

    • Author(s)
      大神田 淳子
    • Organizer
      バイオメディカル研究所インタラクティブセミナー
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 植物病原菌二次代謝産物は植物成長を促進する2022

    • Author(s)
      大神田 淳子
    • Organizer
      日中大学フェアフォーラム
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 天然変性概日時計因子を標的としたコバレント阻害剤の創製2022

    • Author(s)
      山中和也・細谷侑佑・今西未来・大神田淳子
    • Organizer
      生体機能関連若手サマースクール
    • Related Report
      2022 Annual Research Report
  • [Presentation] 抗がん活性フシコクシン誘導体はmRNA翻訳抑制複合体を安定化する2022

    • Author(s)
      荻野 菜々美・伊賀上 祥汰・増田 遼馬・室井 誠・長田 裕之・松本 健・吉田 稔・喜井 勲
    • Organizer
      ケミカルバイオロジー年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Development of fusicoccin-based selective fluorescent labeling for 14-3-3sigma-Cys382021

    • Author(s)
      Kenta Tanaka, Junko Ohkanda
    • Organizer
      Pacifichem2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] Design, synthesis, and evaluation of non-thiol bivalent dual inhibitors for KRas lipid modification2021

    • Author(s)
      Naomi Horiuchi, Fumitoshi Sugino, Junko Ohkanda
    • Organizer
      Pacifichem2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] Fusicoccin-based reactive agents for controlling 14-3-3-mediated signaling pathways2021

    • Author(s)
      Junko Ohkanda
    • Organizer
      Pacifichem2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 天然物誘導体による14-3-3たんぱく質の化学シグナルの解明2021

    • Author(s)
      大神田 淳子
    • Organizer
      新学術化学コミュニケーションのフロンティア 第8回公開シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] 定量的プロテオミクス解析による抗がん活性フシコクシン誘導体の作用機序の解明2021

    • Author(s)
      伊賀上祥汰、増田遼馬、喜井 勲、大神田淳子
    • Organizer
      ケミカルバイオロジー学会第15回年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Fusicoccin: A chemical modulator for 14-3-3 interactions2021

    • Author(s)
      Junko Ohkanda
    • Organizer
      International Chemical Biology Society 2021 Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 植物病原菌二次代謝産物フシコクシンの気孔開口依存的成長促進効果の検証2021

    • Author(s)
      桐山 寛生・木下 悟・林 優紀・木下 俊則・春日 重光・入枝 泰樹・大神田 淳子
    • Organizer
      第63回天然有機化合物討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Fusicoccin: A chemical modulator for 14-3-3 interactions2021

    • Author(s)
      Junko Ohkanda
    • Organizer
      RIKEN CSRS Chemical Biology Luncheon Seminar
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Book] “Chemical approach toward controlling of transient protein interactions” In: Fukase, K.; Doi, T. (Eds.) Middle Molecular Strategy2021

    • Author(s)
      Junko Ohkanda
    • Total Pages
      20
    • Publisher
      Springer, Singapore
    • ISBN
      9789811624575
    • Related Report
      2021 Annual Research Report
  • [Remarks] The Ohkanda Research Lab

    • URL

      http://www.shinshu-u.ac.jp/faculty/agriculture/lab/johkanda/index.html

    • Related Report
      2021 Annual Research Report

URL: 

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

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