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Strutual anlysis of crystallin under crowding environment

Research Project

Project/Area Number 20K06579
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 43040:Biophysics-related
Research InstitutionKyoto University

Principal Investigator

Inoue Rintaro  京都大学, 複合原子力科学研究所, 准教授 (80563840)

Co-Investigator(Kenkyū-buntansha) 杉山 正明  京都大学, 複合原子力科学研究所, 教授 (10253395)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
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: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords中性子散乱 / 重水素化 / クリスタリン / 混雑環境模倣 / 小角中性子散乱
Outline of Research at the Start

細胞中の生体高分子の濃度は重量分率にして30%にも達し、このような高濃度溶液状態を分子混雑環境と称する。分子混雑環境においては、旧来行われてきた希薄環境下では無視できる様々な効果が顕著になるため、それらの効果を加味した実験系の構築が必須である。そこで、本研究では特に水晶体に注目し、分子混雑環境下における水晶体構成タンパク質であるクリスタリンの動的構造を中性子小角散乱法と重水素化標識の組み合わせにより明らかにする。更に、活性測定等との組み合わせから分子混雑環境下におけるクリスタリンの機能発現の機構解明を目指す。

Outline of Final Research Achievements

In this work, we have studied the subunit exchange of alpha-crystallin under crowding environment through the complementary use of protein deuteration technique and small-angle neutron scattering. Making use of development of protein deuteration technique, we succeeded to prepare concentrated scatteringly invisible partially deuterated alpha-crystallin. With this prepared protein, we for the first time succeeded to track the subunit exchange of alpha-crystallin under crowding environment. Contrary to our expectation, it was revealed that the exchange rate under crowding environment was slower than those under dilute or semi-concenrated ones. Through the detailed numerical calculation, a dissociation of monomer from the alpha-crystallin oligomer was suppressed under crowding environment.

Academic Significance and Societal Importance of the Research Achievements

これまでのタンパク質研究は、単成分及び希薄濃度の所謂理想系で進められてきた。しかしながら、生体内は混雑環境であり理想系では無視できる排除体積効果や他の生体高分子との相互作用が顕著となる。そのため、生体内でのタンパク質の構造・ダイナミクスを理解するためには混雑環境を模倣した系での研究が望まれる。今回の研究において、中性子散乱と重水素化の技術により混雑環境下でのタンパク質の情報を引き出すことに成功した。この技術を更に発展させることで、より生体内を模倣した環境の再現が可能になり真のタンパク質の構造・ダイナミクスが明らかにできると強く期待できる。

Report

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

    (23 results)

All 2022 2021 2020 Other

All Journal Article (13 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 13 results,  Open Access: 12 results) Presentation (7 results) (of which Int'l Joint Research: 3 results,  Invited: 3 results) Remarks (3 results)

  • [Journal Article] Tracking the Structural Development of Amyloid Precursors in the Insulin B Chain and the Inhibition Effect by Fibrinogen2022

    • Author(s)
      Naoki Yamamoto, Rintaro Inoue, Yoshiteru Makino, Hiroshi Sekiguchi, Naoya Shibayama, Akira Naito, Masaaki Sugiyama, and Eri Chatani
    • Journal Title

      The Journal of Physical Chemistry B

      Volume: 126 Issue: 51 Pages: 10797-10812

    • DOI

      10.1021/acs.jpcb.2c05136

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Extracting time series matching a small-angle X-ray scattering profile from trajectories of molecular dynamics simulations2022

    • Author(s)
      Shimizu Masahiro、Okuda Aya、Morishima Ken、Inoue Rintaro、Sato Nobuhiro、Yunoki Yasuhiro、Urade Reiko、Sugiyama Masaaki
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 9970-9970

    • DOI

      10.1038/s41598-022-13982-9

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Efficient Multiple Domain Ligation for Proteins Using Asparaginyl Endopeptidase by Selection of Appropriate Ligation Sites Based on Steric Hindrance2022

    • Author(s)
      Okuda Aya、Shimizu Masahiro、Inoue Rintaro、Urade Reiko、Sugiyama Masaaki
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 62 Issue: 1

    • DOI

      10.1002/anie.202214412

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Pathway Dependence of the Formation and Development of Prefibrillar Aggregates in Insulin B Chain2022

    • Author(s)
      Yoshikawa Yuki、Yuzu Keisuke、Yamamoto Naoki、Morishima Ken、Inoue Rintaro、Sugiyama Masaaki、Iwasaki Tetsushi、So Masatomo、Goto Yuji、Tamura Atsuo、Chatani Eri
    • Journal Title

      Molecules

      Volume: 27 Issue: 13 Pages: 3964-3964

    • DOI

      10.3390/molecules27133964

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [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 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Overall structure of fully assembled cyanobacterial KaiABC circadian clock complex by an integrated experimental-computational approach2022

    • Author(s)
      Yunoki Yasuhiro、Matsumoto Atsushi、Morishima Ken、Martel Anne、Porcar Lionel、Sato Nobuhiro、Yogo Rina、Tominaga Taiki、Inoue Rintaro、Yagi-Utsumi Maho、Okuda Aya、Shimizu Masahiro、Urade Reiko、Terauchi Kazuki、Kono Hidetoshi、Yagi Hirokazu、Kato Koichi、Sugiyama Masaaki
    • Journal Title

      Communications Biology

      Volume: 5 Issue: 1 Pages: 184-184

    • DOI

      10.1038/s42003-022-03143-z

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [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] Conformational dynamics of a multidomain protein by neutron scattering and computational analysis2021

    • Author(s)
      Nakagawa Hiroshi、Saio Tomohide、Nagao Michihiro、Inoue Rintaro、Sugiyama Masaaki、Ajito Satoshi、Tominaga Taiki、Kawakita Yukinobu
    • Journal Title

      Biophysical Journal

      Volume: 120 Issue: 16 Pages: 3341-3354

    • DOI

      10.1016/j.bpj.2021.07.001

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Solution structure of multi-domain protein ER-60 studied by aggregation-free SAXS and coarse-grained-MD simulation2021

    • Author(s)
      Okuda Aya、Shimizu Masahiro、Morishima Ken、Inoue Rintaro、Sato Nobuhiro、Urade Reiko、Sugiyama Masaaki
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 1-13

    • DOI

      10.1038/s41598-021-85219-0

    • NAID

      120006997066

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Elucidation of the mechanism of subunit exchange in αB crystallin oligomers2021

    • Author(s)
      Inoue Rintaro、Sakamaki Yusuke、Takata Takumi、Wood Kathleen、Morishima Ken、Sato Nobuhiro、Okuda Aya、Shimizu Masahiro、Urade Reiko、Fujii Noriko、Sugiyama Masaaki
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 1-9

    • DOI

      10.1038/s41598-021-82250-z

    • NAID

      120006956390

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Deuteration Aiming for Neutron Scattering2021

    • Author(s)
      Okuda Aya、Inoue Rintaro、Morishima Ken、Saio Tomohide、Yunoki Yasuhiro、Yagi-Utsumi Maho、Yagi Hirokazu、Shimizu Masahiro、Sato Nobuhiro、Urade Reiko、Kato Koichi、Sugiyama Masaaki
    • Journal Title

      Biophysics and Physicobiology

      Volume: 18 Issue: 0 Pages: 16-27

    • DOI

      10.2142/biophysico.bppb-v18.003

    • NAID

      130008000165

    • ISSN
      2189-4779
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [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
  • [Journal Article] Asp isomerization increases aggregation of α-crystallin and decreases its chaperone activity in human lens of various ages2020

    • Author(s)
      Fujii Noriko、Takata Takumi、Kim Ingu、Morishima Ken、Inoue Rintaro、Magami Kousuke、Matsubara Toshiya、Sugiyama Masaaki、Koide Tamaki
    • Journal Title

      Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics

      Volume: 1868 Issue: 9 Pages: 140446-140446

    • DOI

      10.1016/j.bbapap.2020.140446

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Dynamics and Structure of Intrinsically Disordered Region of Hef as Studied by Solution Scattering2022

    • Author(s)
      INOUE, Rintaro; ODA, Takashi; NAKAGAWA, Hiroshi; TOMINAGA, Taiki; KAWAKITA, Yukinobu; SATO, Mamoru; SUGIYAMA, Masaak
    • Organizer
      SAS2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Integrated Method with Analytical Ultracentrifugation and Small-Angle Scattering (AUC-SAS) for the Structural Analysis of a Biomacromolecule in a Polydisperse Solution.2022

    • Author(s)
      MORISHIMA, Ken; OKUDA, Aya; SATO, Nobuhiro; SHIMIZU, Masahiro; YUNOKI, Yasuhiro; INOUE, Rintaro; URADE, Reiko; SUGIYAMA
    • Organizer
      SAS2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高濃度環境下のα-クリスタリンのサブユニット交換2022

    • Author(s)
      井上倫太郎、杉山正明
    • Organizer
      第22回日本中性子科学会年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Subunit dynamics in alpha-crystallin through deuteration-assisted small-angle neutron scattering2021

    • Author(s)
      Inoue, Rintaro; Sakamaki, Yusuke; Takata, Takumi; Morishima, Ken; Wood, Kathleen; Sato, Nobuhiro; Okuda, Aya; Shimizu, Masahiro; Urade, Reiko; Fujii, Noriko; Sugiyama, Masaaki
    • Organizer
      IUCr 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Subunit dynamics of a-crystallin studied by inverse-contrast small-angle neutron scattering2021

    • Author(s)
      R. Inoue and M. Sugiyama
    • Organizer
      第21回日本中性子科学会年会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] コントラスト変調小角中性子散乱によるタンパク質複合体の解離会合現象の可視化2020

    • Author(s)
      井上倫太郎
    • Organizer
      CBI学会2020
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 準弾性中性子散乱による溶液中におけるタンパク質の内部運動解析にむけて2020

    • Author(s)
      井上 倫太郎, 杉山 正明
    • Organizer
      日本中性子科学会第20回年会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Remarks]

    • URL

      https://www.rri.kyoto-u.ac.jp/PSlab/s-publication.html

    • Related Report
      2022 Annual Research Report
  • [Remarks]

    • URL

      https://www.rri.kyoto-u.ac.jp/PSlab/

    • Related Report
      2021 Research-status Report
  • [Remarks]

    • URL

      https://www.rri.kyoto-u.ac.jp/PSlab/

    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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