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Elucidation of the structure and function common to two intrinsically disordered proteins with significantly different sequences.

Research Project

Project/Area Number 20K06527
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 43020:Structural biochemistry-related
Research InstitutionJapan Atomic Energy Agency (2023)
Rikkyo University (2020-2022)

Principal Investigator

Oda Takashi  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 J-PARCセンター, 研究職 (00573164)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords天然変性タンパク質 / X線小角散乱 / 古細菌 / SAXS / 構造生物学 / 高速原子間力顕微鏡 / 天然変性 / NMR / 高速AFM / 分子動力学計算 / X線小角散乱(SAXS) / 核磁気共鳴分光法(NMR) / 分子動力学シミュレーション(MD) / 高速原子間力顕微鏡(HS-AFM)
Outline of Research at the Start

一般に、タンパク質の機能に重要な領域はアミノ酸配列や立体構造が保存されていると考えられる。しかし、天然変性タンパク質は生物種間でアミノ酸配列保存性が低く、特定の立体構造も取らないため、上記の概念に反する。本研究では2つの生物種間でアミノ酸配列が著しく異なる天然変性領域について、X線小角散乱と種々の解析法を組み合わせて解析することで、動的構造と機能を比較し両者に共通する構造的特徴を解明する。これにより、一見、配列が保存されておらず、共通の立体構造もない天然変性領域がなぜ共通でかつ生物学的に重要な機能を発揮しうるのかを明らかにする。

Outline of Final Research Achievements

We predicted that two naturally denatured proteins (IDPs) that are homologous but have significantly different amino acid sequences share a common function. In this study, we aimed to prove this prediction and elucidate the structural features that enable it to perform its functions. We conducted research on such two IDPs. As a result, we showed that both IDPs bind to both DNA and DNA clamp and have a common function of suppressing the sliding of DNA clamp. Initially, we predicted that a common secondary structural motif (α-helix) would be conserved in the two IDPs to exert this function. However, our results suggest that flexible interactions with DNA due to structural flexibility are more important than secondary structural motifs.

Academic Significance and Societal Importance of the Research Achievements

一般に、タンパク質の機能に重要な領域はアミノ酸配列や立体構造が保存されていると考えられる。しかし、天然変性タンパク質(または天然変性領域)は生物種間でアミノ酸配列保存性が低く、特定の立体構造も取らないため、上記の概念に反する。本研究では、そのような天然変性タンパク質であっても共通の機能を持ちうることを発見した。本研究の成果は他のタンパク質においても従来「重要でない」として見過ごされてきた領域に新たな機能を発見するきっかけとなり、天然変性領域の構造・機能の理解に貢献すると期待する。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (16 results)

All 2024 2023 2022 2021 2020

All Journal Article (8 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 8 results,  Open Access: 7 results) Presentation (8 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Dynamic Solution Structures of Whole Human NAP1 Dimer Bound to One and Two Histone H2A-H2B Heterodimers Obtained by Integrative Methods2023

    • Author(s)
      Ohtomo Hideaki、Yamane Tsutomu、Oda Takashi、Kodera Noriyuki、Kurita Jun-ichi、Tsunaka Yasuo、Amyot Romain、Ikeguchi Mitsunori、Nishimura Yoshifumi
    • Journal Title

      Journal of Molecular Biology

      Volume: 435 Issue: 15 Pages: 168189-168189

    • DOI

      10.1016/j.jmb.2023.168189

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Time-resolved study on signaling pathway of photoactivated adenylate cyclase and its nonlinear optical response2023

    • Author(s)
      Nakasone Yusuke、Murakami Hiroto、Tokonami Shunrou、Oda Takashi、Terazima Masahide
    • Journal Title

      Journal of Biological Chemistry

      Volume: 299 Issue: 11 Pages: 105285-105285

    • DOI

      10.1016/j.jbc.2023.105285

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Internal dynamics of multidomain protein as revealed by an optimized neutron spin echo measurement and all-atom molecular dynamics simulation2023

    • Author(s)
      Inoue Rintaro、Oroguchi Tomotaka、Oda Takashi、Farago Bela、Martel Anne、Porcar Lionel、Sato Mamoru、Sugiyama Masaaki
    • Journal Title

      Physical Review Research

      Volume: 5 Issue: 4 Pages: 043154-043154

    • DOI

      10.1103/physrevresearch.5.043154

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Data Collection for Dilute Protein Solutions via a Neutron Backscattering Spectrometer2022

    • Author(s)
      Taiki Tominaga, Hiroshi Nakagawa, Masae Sahara, Takashi Oda, Rintaro Inoue and Masaaki Sugiyama
    • Journal Title

      Life

      Volume: 12 Issue: 5 Pages: 675-675

    • DOI

      10.3390/life12050675

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] C9orf72-derived arginine-rich poly-dipeptides impede phase modifiers2021

    • Author(s)
      Nanaura Hitoki、Aiba Yuichiro、Nakanishi Mari、Shiota Tomo、Hibino Masaki、Kikuchi Sotaro、Nagata Riko、Morikawa Naritaka、Iguchi Naohiko、Kiriyama Takao、Nagamori Shushi、Sugie Kazuma、Saio Tomohide、Yoshizawa Takuya、Mori Eiichiro et al.
    • Journal Title

      Nature Communications

      Volume: 12 Issue: 1 Pages: 5301-5301

    • DOI

      10.1038/s41467-021-25560-0

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Serine 298 Phosphorylation in Linker 2 of UHRF1 Regulates Ligand-Binding Property of Its Tandem Tudor Domain2020

    • Author(s)
      Kori Satomi、Jimenji Tomohiro、Ekimoto Toru、Sato Miwa、Kusano Fumie、Oda Takashi、Unoki Motoko、Ikeguchi Mitsunori、Arita Kyohei
    • Journal Title

      Journal of Molecular Biology

      Volume: 432 Issue: 14 Pages: 4061-4075

    • DOI

      10.1016/j.jmb.2020.05.006

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Structural and dynamics analysis of intrinsically disordered proteins by high-speed atomic force microscopy2020

    • Author(s)
      Kodera Noriyuki、Noshiro Daisuke、Dora Sujit K.、Mori Tetsuya、Habchi Johnny、Blocquel David、Gruet Antoine、Dosnon Marion、Salladini Edoardo、Bignon Christophe、Fujioka Yuko、Oda Takashi、Noda Nobuo N.、Sato Mamoru、Lotti Marina、Mizuguchi Mineyuki、Longhi Sonia、Ando Toshio
    • Journal Title

      Nature Nanotechnology

      Volume: 16 Issue: 2 Pages: 181-189

    • DOI

      10.1038/s41565-020-00798-9

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Dynamics of proteins with different molecular structures under solution condition2020

    • Author(s)
      Inoue Rintaro、Oda Takashi、Nakagawa Hiroshi、Tominaga Taiki、Saio Tomohide、Kawakita Yukinobu、Shimizu Masahiro、Okuda Aya、Morishima Ken、Sato Nobuhiro、Urade Reiko、Sato Mamoru、Sugiyama Masaaki
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 21678-21678

    • DOI

      10.1038/s41598-020-78311-4

    • NAID

      120007193758

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] X線/中性子散乱によるマルチドメインタンパク質Hefの構造/ダイナミクス研究2024

    • Author(s)
      小田 隆, 井上 倫太郎, 守島 健, 會澤 直樹, 富永 大輝, 中川 洋1, 大井 里香, 石野 園子, 石野 良純, 奥 隆之, 佐藤 衛, 杉山 正明
    • Organizer
      2023年度量子ビームサイエンスフェスタ,第15回 MLFシンポジウム, 第41回PFシンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] Analysis of flexible structure of multi-domain protein by SANS using segment deuteration technique.2023

    • Author(s)
      Takashi Oda, Rintaro Inoue, Ken Morishima, Rika Oi, Yoshizumi Ishino, Mamoru Sato, Masaaki Sugiyama.
    • Organizer
      Twenty-Sixth Congress and General Assembly of the International Union of Crystallography.
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 区分重水素化タンパク質を用いた中性子小角散乱解析2023

    • Author(s)
      小田 隆, 井上 倫太郎, 守島 健, 會澤 直樹, 大井 里香, 石野 良純, 奥 隆之, 佐藤 衛, 杉山 正明.
    • Organizer
      日本中性子科学会第23回年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 好熱性古細菌由来天然変性タンパク質の生理的温度における動的構造とダイナミクス2022

    • Author(s)
      小田 隆、井上 倫太郎、富永 大輝、中川 洋、守島 健、岩瀬 裕希、石野 良純、佐藤 衛、杉山 正明
    • Organizer
      日本中性子科学会年会
    • Related Report
      2022 Research-status Report
  • [Presentation] Internal Dynamics of Intrinsically Disordered Protein as Studied by Neutron Scattering2022

    • Author(s)
      井上 倫太郎、小田 隆、中川 洋、富永 大輝、川北 至信、佐藤 衛、杉山 正明
    • Organizer
      日本生物物理学会年会
    • Related Report
      2022 Research-status Report
  • [Presentation] X線小角散乱と計算科学を用いた統合的解析による天然変性タンパク質の動的構造と機能の理解2022

    • Author(s)
      小田隆, 大井里香, 古寺哲幸, 安藤敏夫, 小沼剛, 菅瀬謙治, 苙口友隆, 井上倫太郎, 杉山正明, 石野園子, 石野良純, 佐藤衛
    • Organizer
      日本農芸化学会2022年度京都大会(JSBBA2022)
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Integrated approach using X-ray/Neutron scattering and MD simulation for understanding dynamic structure and function of IDP2021

    • Author(s)
      小田隆
    • Organizer
      第59回 日本生物物理学会年会(BSJ2021)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 中性子散乱実験に向けた区分重水素化タンパク質の調製2021

    • Author(s)
      小田隆, 井上倫太郎, 中川洋, 富永大輝, 大井里香, 石野良純, 杉山正明, 佐藤衛
    • Organizer
      第21回日本中性子科学会年会(JSNS2021)
    • Related Report
      2021 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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