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A multidisciplinary approach to establish the structural basis of dosage compensation

Research Project

Project/Area Number 19H03169
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 43020:Structural biochemistry-related
Research InstitutionTokyo University of Pharmacy and Life Science (2021)
Tokyo Metropolitan University (2019-2020)

Principal Investigator

Mishima Masaki  東京薬科大学, 薬学部, 教授 (70346310)

Co-Investigator(Kenkyū-buntansha) 坂本 泰一  千葉工業大学, 先進工学部, 教授 (40383369)
田岡 万悟  東京都立大学, 理学研究科, 准教授 (60271160)
藤原 俊伸  近畿大学, 薬学部, 教授 (80362804)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2021: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2020: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2019: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Keywords遺伝子量補償 / SHARP / NMR / X線結晶構造解析 / Xist / 質量分析 / 構造解析 / リボプロテオミクス
Outline of Research at the Start

長鎖ノンコーディングRNAであるXistによる染色体レベルでの転写抑制を理解するため、まずXistとSHARPとの複合体の立体構造を解析し、遺伝子量補正における鍵となる分子間相互作用の構造基盤を確立する。多次元NMR、SAXS(X線小角散乱)、X線結晶構造解析を用いて解析を行う。またリボプロテオミクス(免疫沈降と質量分析)による細胞内での結合部位の解析、他の因子との関連の解析を並行して行う。

Outline of Final Research Achievements

Xist, an lncRNA, plays a pivotal role in global transcriptional repression at the chromosomal level in dosage compensation. To understand the mechanism of this transcriptional repression, we aimed to establish the structural basis of the key intermolecular interaction. In particular, we focused on the analysis of the three-dimensional structure of the complex of Xist and SHARP, and performed analyses using a multidisciplinary approach such as multidimensional NMR, X-ray crystal structure determination, biochemical analysis, and ribo-proteomics. Stable isotope-labeled proteins were prepared and good NMR spectra of the RRM23 moiety were obtained, and the NMR resonance assignments were established. In the NMR measurements of Xist, there were difficulties such as signal loss due to the dynamics between the two repeats. We overcame the problem by partial isotope labeling

Academic Significance and Societal Importance of the Research Achievements

遺伝子量補償は染色体全体まるごとの不活化というスケールの大きな発現抑制であり、それを担う複合体は、多くの因子を含み、転写抑制マシナリー全体の分子レベル、構造レベルでの理解が必要である。またxist遺伝子の他の染色体への移植によってトリソミー等の染色体異常による過剰な発現を抑制できることが、細胞レベルの研究では明らかになっており、Xistのもつ染色体全体を不活化する機能を、タンパク質との複合体形成に基づいた分子(構造)レベルまで落とし込んで理解することは、将来の医学的な展開を視野にいれた基礎研究としても、意義深い。本研究はその第1歩となる研究である。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (28 results)

All 2022 2021 2020 2019

All Journal Article (9 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results,  Open Access: 3 results) Presentation (18 results) (of which Int'l Joint Research: 2 results) Book (1 results)

  • [Journal Article] Raman Spectroscopy of an Atypical C15-E,syn Bilin Chromophore in Cyanobacteriochrome RcaE2022

    • Author(s)
      Yuji Okuda, Risako Miyoshi, Takanari Kamo, Tomotsumi Fujisawa, Takayuki Nagae, Masaki Mishima, Toshihiko Eki, Yuu Hirose, Masashi Unno
    • Journal Title

      J. Phys. Chem. B

      Volume: 126 Issue: 4 Pages: 813-821

    • DOI

      10.1021/acs.jpcb.1c09652

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structural basis of the protochromic green/red photocycle of the chromatic acclimation sensor RcaE2021

    • Author(s)
      Takayuki Nagae, Masashi Unno, Taiki Koizumi, Yohei Miyanoiri, Tomotsumi Fujisawa, Kento Masui, Takanari Kamo, Kei Wada, Toshihiko Eki, Yutaka Ito, Yuu Hirose, Masaki Mishima
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 118(20) Issue: 20

    • DOI

      10.1073/pnas.2024583118

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Spectroscopic approach for exploring structure and function of photoreceptor proteins2021

    • Author(s)
      Masashi Unno, Yuu Hirose, Masaki Mishima, Takashi Kikukawa, Tomotsumi Fujisawa, Tatsuya Iwata, Jun Tamogami
    • Journal Title

      Biophysics and Physicobiology

      Volume: 18 Issue: 0 Pages: 127-130

    • DOI

      10.2142/biophysico.bppb-v18.014

    • NAID

      130008054065

    • ISSN
      2189-4779
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Syntheses and structure of dinuclear metal complexes containing naphthyl-Ir bichromophore2021

    • Author(s)
      Ohyama Ryo、Mishima Masaki、Inagaki Akiko
    • Journal Title

      Dalton Transactions

      Volume: 50 Issue: 36 Pages: 12716-12722

    • DOI

      10.1039/d1dt01853a

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Light-Assisted Catalytic Hydrogenation of Carbon Dioxide at a Low Pressure by a Dinuclear Iridium Polyhydride Complex2021

    • Author(s)
      Takahashi Asuka、Mishima Masaki、Nomura Kotohiro、Inagaki Akiko
    • Journal Title

      Organometallics

      Volume: 40 Issue: 2 Pages: 98-101

    • DOI

      10.1021/acs.organomet.0c00684

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Digipregnosides A?C, three novel rearranged 11,12-secopregnane glycosides, and digipregnosides D and E, 12,20-epoxypregnane glycosides from the seeds of Digitalis purpurea2021

    • Author(s)
      Takatori Kazuhiro、Kuroda Minpei、Mishima Masaki、Matsuo Yukiko、Mimaki Yoshihiro
    • Journal Title

      Tetrahedron Letters

      Volume: 70 Pages: 153020-153020

    • DOI

      10.1016/j.tetlet.2021.153020

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mechanism of self/nonself- discrimination in Brassica self-incompatibility.2020

    • Author(s)
      Murase, K., Moriwaki, Y., Mori, T., Xiao, L., Masaka, C., Takada, Y., Maesaki, R., Mishima, M., Fujii, S., Hirano, Y., Kawabe, Z., Nagata, K., Terada, T., Suzuki, G., Watanabe, M., Shimizu, K., Hakoshima, T., and Takayama, S.
    • Journal Title

      Nature Communications

      Volume: 11 Issue: 1 Pages: 4916-4916

    • DOI

      10.1038/s41467-020-18698-w

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Domain selective labeling for NMR studies of multidomain proteins by domain ligation using highly active sortase A2020

    • Author(s)
      Aizu Takahiro、Suzuki Takumi、Kido Akihiro、Nagai Kan、Kobayashi Ayaho、Sugiura Reiko、Ito Yutaka、Mishima Masaki
    • Journal Title

      Biochimica et Biophysica Acta (BBA) - General Subjects

      Volume: 1864 Issue: 2 Pages: 129419-129419

    • DOI

      10.1016/j.bbagen.2019.129419

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] マルチドメインタンパク質のNMRによる構造解析に資する要素技術2019

    • Author(s)
      鈴木拓巳,高田夢人,伊藤隆,三島正規
    • Journal Title

      細胞

      Volume: 51 Pages: 58-62

    • Related Report
      2019 Annual Research Report
  • [Presentation] Analyses of protonation state of chromophore of the cyanobacterial photoreceptor protein2022

    • Author(s)
      飯塚 佑介、 永江 峰幸、青山 洋史、伊集院 良祐、伊藤 隆、広瀬 侑、三島 正規
    • Organizer
      日本薬学会第142年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 15N直接観測NMRによるシアノバクテリア光センサーのプロトン化状態の解析2022

    • Author(s)
      三島 正規、永江 峰幸、小泉 太貴、青山 洋史、伊集院 良祐、伊藤 隆、広瀬 侑
    • Organizer
      日本薬学会第142年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Analyses of the scalar couplings via bifurcated hydrogen bonds2021

    • Author(s)
      中島弘稀、小泉太貴、伊藤隆、海野昌喜、三島正規
    • Organizer
      22nd International Society of Magnetic Resonance Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] NMR studies on the protonation state of cyanobacteriochrome2021

    • Author(s)
      三島正規
    • Organizer
      22nd International Society of Magnetic Resonance Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] NMR studies of the protochromic green/red photocycle of the chromatic acclimation sensor RcaE2021

    • Author(s)
      三島正規
    • Organizer
      NMRSJ2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] シアノバクテリア由来光受容タンパク質GAFドメインの立体構造解析2020

    • Author(s)
      小泉太貴、会津貴大、伊藤隆、広瀬侑、永江峰幸、三島正規
    • Organizer
      第58回日本生物物理学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 構造研究のためのタンパク質連結法の開発2020

    • Author(s)
      鈴木拓巳、会津貴大、伊藤隆、三島正規
    • Organizer
      第58回日本生物物理学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] NMR studies on the protonation state of cyanobacteriochrome2020

    • Author(s)
      三島正規
    • Organizer
      第58回日本生物物理学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Rab32のNMRによる解析2020

    • Author(s)
      鈴木拓巳, 田島佳寿 , 川原裕之 , 伊藤隆 , 三島正規
    • Organizer
      第59回NMR討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 光受容タンパク質GAFドメインにおける発色団のプロトン化状態の解析2020

    • Author(s)
      小泉太貴,会津貴大, 宮ノ入洋平, 伊藤隆, 広瀬侑, 三島正規
    • Organizer
      第59回NMR討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] NMRを用いたアダプター蛋白質Drkの動態解析2020

    • Author(s)
      渡邉吏輝,プバティ マキシン サイーシュ,末元雄介,木川隆則,三島正規,猪股晃介,池谷鉄兵,伊藤隆
    • Organizer
      第59回NMR討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] NDSBの添加によるユビキチン分子内の水素結合への影響2020

    • Author(s)
      中島弘稀,若松馨,伊藤隆,三島正規
    • Organizer
      第59回NMR討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] フェレドキシンタンパク質の水素結合の直接観測2019

    • Author(s)
      中島弘稀、小泉太貴、伊藤隆、海野昌喜、三島正規「
    • Organizer
      第58回NMR討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] シアノバクテリア由来GAFドメインのNMRによる構造解析2019

    • Author(s)
      小泉太貴 、会津貴大、伊藤隆、広瀬侑 、三島正規
    • Organizer
      第58回NMR討論
    • Related Report
      2019 Annual Research Report
  • [Presentation] 多様なユビキチン鎖のロバストな合成法とNMRへの応用2019

    • Author(s)
      鈴木拓巳、高田夢人、伊藤隆、三島正規
    • Organizer
      第58回NMR討論
    • Related Report
      2019 Annual Research Report
  • [Presentation] 溶液NMRによる水素結合の直接観測2019

    • Author(s)
      小泉太貴 、中島弘稀、伊藤隆、三島正規
    • Organizer
      第57回日本生物物理学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 様々なユビキチン鎖のロバストな合成法2019

    • Author(s)
      鈴木拓巳、会津貴大、伊藤隆、三島正規
    • Organizer
      第57回日本生物物理学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 多様なユビキチン鎖のロバストな合成法2019

    • Author(s)
      鈴木拓巳、会津貴大、伊藤隆、三島正規
    • Organizer
      日本ケミカルバイオロジー学会 第14回年会
    • Related Report
      2019 Annual Research Report
  • [Book] 現代を生きるための化学〔改訂版〕2022

    • Author(s)
      橋本 健朗
    • Total Pages
      244
    • Publisher
      放送大学教育振興会
    • ISBN
      9784595323560
    • Related Report
      2021 Annual Research Report

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Published: 2019-04-18   Modified: 2023-01-30  

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