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

Exploration of antibody allosteric networks of glycans and proteins

Research Project

Project/Area Number 20K15981
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 47020:Pharmaceutical analytical chemistry and physicochemistry-related
Research InstitutionInstitute for Molecular Science

Principal Investigator

Yanaka Saeko  分子科学研究所, 生命・錯体分子科学研究領域, 助教 (80722777)

Project Period (FY) 2020-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2020: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords免疫グロブリンG / Fc領域 / 糖鎖 / MDシミュレーション / 核磁気共鳴法 / アロステリックネットワーク / 抗体 / グライコフォーム / NMR / 量子ビーム溶液散乱 / アロステリック
Outline of Research at the Start

抗体に結合した糖鎖はエフェクター機能と密接に結びついており、その構造多様性は優に100通りを越える。抗体の糖鎖はタンパク質部分と渾然一体となった分子内ネットワークを形成しており、糖鎖構造の僅かな変化がそのダイナミクスに影響を与えることで予期せぬ部位に構造変化を引き起こし、エフェクター機能を変調するものと考えられる。しかしながら、3次元構造ダイナミクスの観点から抗体のグライコフォームと機能の関連を体系的に精査した研究はない。本研究では、抗体分子内に張り巡らされた糖鎖とタンパク質が織りなすアロステリックネットワークを実験と理論の両面から探査し、その動態と機能の関連を明らかにすることを目指す。

Outline of Final Research Achievements

Antibodies are glycoproteins that trigger effector functions upon antigen recognition and are responsible for the elimination of foreign substances in the immune system. Glycans attached to antibodies are closely linked to their effector functions, and there can be more than 100 different glycoforms. The glycans of antibodies form intramolecular networks that are integrated with the protein portion, and it is supposed that subtle changes in the glycan structure can affect the intramolecular network, causing structural changes at unexpected distal sites and modulating the effector functions. This study explored the "allosteric network" of glycans and proteins in the antibody molecule through the integration of experimental and theoretical approaches, highlighting the relationship between the dynamics and functions of the network.

Academic Significance and Societal Importance of the Research Achievements

糖鎖を含めた抗体の構造解析はいくつかの取り組みが報告されているが、それらは断片的な現象論的記述にとどまっており、分子の動的3次元構造の観点に立って、糖鎖構造のバリエーションと機能を結びつける系統的な研究は国内外を通じて行われていない。
本研究により、これまで各論的な経験に基づいて行われているバイオ医薬の糖鎖バリエーションの品質管理に科学的根拠がもたらされるとともに、次世代抗体医薬の創成に向けての体系的な設計指針を与えることが可能となるものと期待される。

Report

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

    (17 results)

All 2022 2021 2020 Other

All Int'l Joint Research (1 results) Journal Article (9 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 8 results,  Open Access: 5 results) Presentation (6 results) (of which Int'l Joint Research: 1 results,  Invited: 5 results) Book (1 results)

  • [Int'l Joint Research] Institut Laue-Langevin(フランス)

    • Related Report
      2020 Research-status Report
  • [Journal Article] The Fab portion of immunoglobulin G has sites in the CL domain that interact with Fc gamma receptor IIIa2022

    • Author(s)
      Yamaguchi Yuki、Wakaizumi Natsumi、Irisa Mine、Maruno Takahiro、Shimada Mari、Shintani Koya、Nishiumi Haruka、Yogo Rina、Yanaka Saeko、Higo Daisuke、Torisu Tetsuo、Kato Koichi、Uchiyama Susumu
    • Journal Title

      mAbs

      Volume: 14 Issue: 1

    • DOI

      10.1080/19420862.2022.2038531

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Glutamine-free mammalian expression of recombinant glycoproteins with uniform isotope labeling: an application for NMR analysis of pharmaceutically relevant Fc glycoforms of human immunoglobulin G12022

    • Author(s)
      Yanaka Saeko、Yagi Hirokazu、Yogo Rina、Onitsuka Masayoshi、Kato Koichi
    • Journal Title

      Journal of Biomolecular NMR

      Volume: なし Issue: 1-2 Pages: 17-22

    • DOI

      10.1007/s10858-021-00387-5

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quantitative Visualization of the Interaction between Complement Component C1 and Immunoglobulin G: The Effect of CH1 Domain Deletion2022

    • Author(s)
      Yanaka Saeko、Nishiguchi Shigetaka、Yogo Rina、Watanabe Hiroki、Shen Jiana、Yagi Hirokazu、Uchihashi Takayuki、Kato Koichi
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 23 Issue: 4 Pages: 2090-2090

    • DOI

      10.3390/ijms23042090

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comprehensive characterization of oligosaccharide conformational ensembles with conformer classification by free-energy landscape via reproductive kernel Hilbert space2021

    • Author(s)
      Watanabe Tokio、Yagi Hirokazu、Yanaka Saeko、Yamaguchi Takumi、Kato Koichi
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: - Issue: 16 Pages: 9753-9760

    • DOI

      10.1039/d0cp06448c

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] NMR assignments of the N-glycans of the Fc fragment of mouse immunoglobulin G2b glycoprotein2021

    • Author(s)
      Yanaka Saeko、Yamaguchi Yoshiki、Takizawa Takeshi、Miyanoiri Yohei、Yogo Rina、Shimada Ichio、Kato Koichi
    • Journal Title

      Biomolecular NMR Assignments

      Volume: 15 Issue: 1 Pages: 187-192

    • DOI

      10.1007/s12104-020-10004-5

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A feasibility study of inverse contrast-matching small-angle neutron scattering method combined with size exclusion chromatography using antibody interactions as model systems2021

    • Author(s)
      Sato Nobuhiro、Yogo Rina、Yanaka Saeko、Martel Anne、Porcar Lionel、Morishima Ken、Inoue Rintaro、Tominaga Taiki、Arimori Takao、Takagi Junichi、Sugiyama Masaaki、Kato Koichi
    • Journal Title

      The Journal of Biochemistry

      Volume: 0 Issue: 6 Pages: 1-8

    • DOI

      10.1093/jb/mvab012

    • NAID

      40022687772

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Silkworm Pupae Function as Efficient Producers of Recombinant Glycoproteins with Stable-Isotope Labeling2020

    • Author(s)
      Yagi Hirokazu、Yanaka Saeko、Yogo Rina、Ikeda Akari、Onitsuka Masayoshi、Yamazaki Toshio、Kato Tatsuya、Park Enoch Y.、Yokoyama Jun、Kato Koichi
    • Journal Title

      Biomolecules

      Volume: 10 Issue: 11 Pages: 1482-1482

    • DOI

      10.3390/biom10111482

    • NAID

      120007045052

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Biophysical characterization of dynamic structures of immunoglobulin G2020

    • Author(s)
      Yanaka Saeko、Yogo Rina、Kato Koichi
    • Journal Title

      Biophysical Reviews

      Volume: 12 Issue: 3 Pages: 637-645

    • DOI

      10.1007/s12551-020-00698-1

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 複雑な糖鎖のコンフォメーション空間の探査と改変―計算と実験の統合によるアプローチ2020

    • Author(s)
      谷中冴子、加藤晃一
    • Journal Title

      化学

      Volume: 75 Pages: 30-71

    • Related Report
      2020 Research-status Report
  • [Presentation] Stable isotope-assisted NMR analysis of dynamics and interactions of the Fc region of immunoglobulin G as glycoprotein2021

    • Author(s)
      Saeko Yanaka
    • Organizer
      ISMAR-APNMR-NMRSJ-SEST2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 抗体の3次元構造と相互作用のダイナミクスをみる2021

    • Author(s)
      谷中冴子
    • Organizer
      PFF2020/2021
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 抗体の安定同位体標識によるNMRを用いた3次元構造と相互作用の解析2021

    • Author(s)
      谷中冴子
    • Organizer
      第21回若手NMR研究会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 抗体の3次元構造と相互作用のダイナミクスを解明する方法の 開発と抗体の高機能化への展開2021

    • Author(s)
      谷中冴子
    • Organizer
      日本薬学会第141年会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 血清環境における抗体の分子間相互作用と機能の解明2021

    • Author(s)
      與語理那,谷中冴子,矢木宏和,加藤晃一
    • Organizer
      日本薬学会 第141年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Impacts of the N-glycan variation of antibodies on their dynamic structures of functional relevance2020

    • Author(s)
      谷中冴子、與語理那、矢木宏和、加藤晃一
    • Organizer
      第58回日本生物物理学会年会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Book] Comprehensive Glycoscience, 2nd edition (J. Barchi ed.)2021

    • Author(s)
      Hirokazu Yagi、Saeko Yanaka、Koichi Kato
    • Publisher
      Elsevier (Oxford)
    • Related Report
      2021 Annual Research Report

URL: 

Published: 2020-04-28   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi