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Structural basis of the Th1 cell differentiation.

Research Project

Project/Area Number 16K07276
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Structural biochemistry
Research InstitutionKumamoto University

Principal Investigator

Ikemizu Shinji  熊本大学, 大学院生命科学研究部(薬), 准教授 (60333522)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywordsサイトカイン / 分子認識 / 複合体 / 構造生物学 / 蛋白質 / 免疫学
Outline of Final Research Achievements

To understand Th1 cell differentiation mechanism from naive T cell, we study the structural analysis of interleukin (IL) -27 complexed with two receptors WSX-1 and gp130.
Preparation of these three proteins was carried out, and then IL-27 / WSX-1 complex was successfully purified. The crystallization trials were attempted using purified IL-27 / WSX-1 complex . And preparation trials of IL-27 / WSX-1 / gp130 complex were failed due to the weak binding ability of gp130 to IL-27 / WSX-1 complex. We are currently redesigning the gp130 construct to obtain crystal of IL-27 / WSX-1 / gp130 complex.

Academic Significance and Societal Importance of the Research Achievements

Th1細胞は細胞免疫を調節する重要な細胞である。しかしながら、その分化機構に関しては構造生物学的知見が得られていない。また、IL-27はヘテロ二量体サイトカインであり、このファミリーのシグナル伝達複合体の構造は未知である。我々は、IL-27/WSX-1/gp130複合体の結晶構造解析を行い、Th1分化機構を構造生物学的に明らかにすると共に、ヘテロ二量体サイトカインのシグナル伝達複合体に関する構造生物学的知見を得ることにより、本領域に貢献する。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (10 results)

All 2019 2018 2017

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

  • [Journal Article] Crystal Structure of the CD200/CD200R Complex2019

    • Author(s)
      Takumi Shirouzono, Ryuto Sakiyama, Mami Chirifu, Toshiyuki Kojima, Hajime Karasuyama, Shinji Ikemizu,
    • Journal Title

      SPring-8/SACLA Research Report

      Volume: 7(1) Pages: 1-4

    • NAID

      130007969603

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] X-ray Structure Analysis of Human Oxidized Nucleotide Hydrolase MTH1 using Crystals Obtained under Microgravity2019

    • Author(s)
      Nakamura T, Hirata K, Fujimiya K, Chirifu M, Arimori T, Tamada T, Ikemizu S, Yamagata Y
    • Journal Title

      International journal of microgravity science and application

      Volume: 36 Issue: 1 Pages: 360103

    • DOI

      10.15011//jasma.36.360103

    • NAID

      130007769928

    • ISSN
      2188-9783
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A molecular and preclinical comparison of the PD-1?targeted T-cell checkpoint inhibitors nivolumab and pembrolizumab2017

    • Author(s)
      Fessas Petros、Lee Hassal、Ikemizu Shinji、Janowitz Tobias
    • Journal Title

      Seminars in Oncology

      Volume: 44 Issue: 2 Pages: 136-140

    • DOI

      10.1053/j.seminoncol.2017.06.002

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 免疫タンパク質―受容体の分子認識機構の解明2018

    • Author(s)
      池水 信二
    • Organizer
      佐賀大学シンクロトロン光応用研究センター講演会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Crystal structure of human oxidative nucleotide hydrolase in complex with a newly found substrate2018

    • Author(s)
      Kana Fujimiya, Teruya Nakamura, Yuta Suzuki, Shaimaa Waz, Keisuke Hirata, Mami Chirifu, Shinji Ikemizu, Yuriko Yamagata
    • Organizer
      第56回日本生物物理学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] High resolution and time-resolved X-ray crystallographic study on enzymatic reaction of human MTH12017

    • Author(s)
      Teruya Nakamura, Shaimaa Waz, Keisuke Hirata, Mami Chirifu, Shinji Ikemizu, Yuriko Yamagata
    • Organizer
      第55回日本生物物理学会年会
    • Related Report
      2017 Research-status Report
  • [Presentation] 幅広い基質特異性を持つ酸化ヌクレオチド加水分解酵素の反応過程の観察2017

    • Author(s)
      平田啓介,中村照也,Shaimaa Waz, 池鯉鮒麻,池水信二,山縣ゆり子
    • Organizer
      第17回日本蛋白質科学会年会
    • Related Report
      2017 Research-status Report
  • [Presentation] カルボン酸の結合距離解析によるhMTH1の基質認識部位のプロトネーション状態の同定2017

    • Author(s)
      中村照也、Shaimaa Waz、平田啓介、池鯉鮒麻美、池水信二、山縣ゆり子
    • Organizer
      第17回日本蛋白質科学会年会
    • Related Report
      2017 Research-status Report
  • [Presentation] Role of protonation at Asp residues in the broad substrate specificity of human oxidative nucleotide hydrolase2017

    • Author(s)
      Teruya Nakamura, Shaimaa Waz, Keisuke Hirata, Mami Chirifu, Shinji Ikemizu, Yuriko Yamagata
    • Organizer
      2017 West Coast Protein Crystallography Workshop
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Book] Structural Biology in Immunology2018

    • Author(s)
      Shinji Ikemizu,Simon J. Davis
    • Total Pages
      186
    • Publisher
      ELSEVIER
    • ISBN
      9780128033708
    • Related Report
      2018 Annual Research Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

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