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

オーキシンデグロン法によるタンパク質寿命操作

Planned Research

Project AreaShin-biology regulated by protein lifetime
Project/Area Number 23H04925
Research Category

Grant-in-Aid for Transformative Research Areas (A)

Allocation TypeSingle-year Grants
Review Section Transformative Research Areas, Section (III)
Research InstitutionNational Institute of Genetics

Principal Investigator

鐘巻 将人  国立遺伝学研究所, 遺伝メカニズム研究系, 教授 (20444507)

Project Period (FY) 2023-04-01 – 2028-03-31
Project Status Granted (Fiscal Year 2025)
Budget Amount *help
¥110,370,000 (Direct Cost: ¥84,900,000、Indirect Cost: ¥25,470,000)
Fiscal Year 2025: ¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000)
Fiscal Year 2024: ¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
Fiscal Year 2023: ¥31,200,000 (Direct Cost: ¥24,000,000、Indirect Cost: ¥7,200,000)
Keywordsタンパク質寿命操作 / デグロン / タンパク質分解 / プロテインノックダウン / 発現制御 / ユビキチン化
Outline of Research at the Start

鐘巻がこれまで開発・改良を重ねてきた、任意タンパク質の分解するAID技術は、人為的タンパク質寿命操作法として理想的な技術である。しかしながら、改良型のAID2を持ってしても、その分解特性に複数の課題がある。これらをAID2の技術的改良により克服し、タンパク質寿命制御の基礎研究における汎用性を拡大し、さらには臨床応用の可能性を開く。

Outline of Annual Research Achievements

AID2をベースにしたナノボディ抗体を使って標的タンパク質を認識、分解誘導する、単鎖抗体AID2の開発を進めた。必要なコンポーネントを全てコードするall-in-oneプラスミドを作成し、GFPナノボディを利用して、GFP付加した複数のタンパク質の分解をテストした。その結果、比較的発現量が低いタンパク質であれば、90%以上を分解除去できることが明らかになった。さらにp53やRASに対する単鎖抗体を利用して、内在性のこれら因子を分解できることを見出した。
次にマウスでAID2を利用するために、受精卵を利用してROSA26座にOsTIR1(F74G)の導入を試みたが、うまくノックインされたマウスラインが得られなかった。そこで、ES細胞に導入する方法で進めている。mAID-GFPレポーターをROSA26に導入したマウスラインの作成は成功した。脳内分解に向けた分解誘導化合物のスクリーニングは、20種類近く新規化合物を試したが、5-Ph-IAAを超える分解誘導能をもつものは得られなかった。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

昨年度は単鎖抗体を用いた改良AID2を細胞レベルで検証し、GFP付加タンパク質、p53、RASなどを標的に分解誘導に成功した。AID2のマウスへの応用に関しては、mAID-GFPレポーターを発現するマウスの樹立に成功した。

Strategy for Future Research Activity

単鎖抗体AID2法を細胞レベルでより検証するとともに、線虫、マウスなど動物個体への応用をテストする。マウスに関しては、ROSA26座にOsTIR1(F74G)を導入したラインの確立する。脳内分解誘導用のリガンドに関しては、新規アナログをテストして検証する。

Report

(1 results)
  • 2023 Annual Research Report
  • Research Products

    (14 results)

All 2024 2023 Other

All Int'l Joint Research (2 results) Journal Article (8 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 8 results,  Open Access: 4 results) Presentation (4 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Int'l Joint Research] Vanderbilt University/University of Pennsylvania/Harvard Medical School(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] University of Edinburgh/University of Manchester/University of Dundee(英国)

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Overexpression of JNK-associated leucine zipper protein induces chromosomal instability through interaction with dynein light intermediate chain 12024

    • Author(s)
      Ryusuke Suzuki, Masato T Kanemaki, Takeshi Suzuki, Katsuji Yoshioka
    • Journal Title

      Genes to Cells

      Volume: 29 Issue: 1 Pages: 39-51

    • DOI

      10.1111/gtc.13083

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ran-GTP assembles a specialized spindle structure for accurate chromosome segregation in medaka early embryos2024

    • Author(s)
      Ai Kiyomitsu , Toshiya Nishimura, Shiang Jyi Hwang, Satoshi Ansai, Masato T Kanemaki, Minoru Tanaka, Tomomi Kiyomitsu
    • Journal Title

      Nature Communications

      Volume: 15 Issue: 1 Pages: 981-981

    • DOI

      10.1038/s41467-024-45251-w

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Depletion of lamins B1 and B2 promotes chromatin mobility and induces differential gene expression by a mesoscale-motion-dependent mechanism2024

    • Author(s)
      Pujadas Liwag Emily M.、Wei Xiaolong、Acosta Nicolas、Carter Lucas M.、Yang Jiekun、Almassalha Luay M.、Jain Surbhi、Daneshkhah Ali、Rao Suhas S. P.、Seker-Polat Fidan、MacQuarrie Kyle L.、Ibarra Joe、Agrawal Vasundhara、Aiden Erez Lieberman、Kanemaki Masato T.、Backman Vadim、Adli Mazhar
    • Journal Title

      Genome Biology

      Volume: 25 Issue: 1 Pages: 77-77

    • DOI

      10.1186/s13059-024-03212-y

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] RAD51 bypasses the CMG helicase to promote replication fork reversal2023

    • Author(s)
      Liu Wenpeng、Saito Yuichiro、Jackson Jessica、Bhowmick Rahul、Kanemaki Masato T.、Vindigni Alessandro、Cortez David
    • Journal Title

      Science

      Volume: 380 Issue: 6643 Pages: 382-387

    • DOI

      10.1126/science.add7328

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The assembly of the MCM2?7 hetero-hexamer and its significance in DNA replication2023

    • Author(s)
      Hatoyama Yuki、Kanemaki Masato T.
    • Journal Title

      Biochemical Society Transactions

      Volume: 51 Issue: 3 Pages: 1289-1295

    • DOI

      10.1042/bst20221465

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] High-throughput Oligopaint screen identifies druggable 3D genome regulators2023

    • Author(s)
      Park DS.、Nguyen SC.、Isenhart R、Shah PP.、Kim W、Barnett RJ、Chandra A、Luppino JM.、Harke J、Wai M、Walsh PJ.、Abdill RJ.、Yang R、Lan Y、Yoon S、Yunker R、Kanemaki MT.、Vahedi G、Phillips-Cremins JE.、Jain R、Joyce EF.
    • Journal Title

      Nature

      Volume: 620 Issue: 7972 Pages: 209-217

    • DOI

      10.1038/s41586-023-06340-w

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] In silico protein interaction screening uncovers DONSON’s role in replication initiation2023

    • Author(s)
      Lim Yang、Tamayo-Orrego Lukas、Schmid Ernst、Tarnauskaite Zygimante、Kochenova Olga V.、Gruar Rhian、Muramatsu Sachiko、Lynch Luke、Schlie Aitana Verdu、Carroll Paula L.、Chistol Gheorghe、Reijns Martin A. M.、Kanemaki Masato T.、Jackson Andrew P.、Walter Johannes C.
    • Journal Title

      Science

      Volume: 381 Issue: 6664

    • DOI

      10.1126/science.adi3448

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] TRAIP resolves DNA replication-transcription conflicts during the S-phase of unperturbed cells2023

    • Author(s)
      Scaramuzza Shaun、Jones Rebecca M.、Sadurni Martina Muste、Reynolds-Winczura Alicja、Poovathumkadavil Divyasree、Farrell Abigail、Natsume Toyoaki、Rojas Patricia、Cuesta Cyntia Fernandez、Kanemaki Masato T.、Saponaro Marco、Gambus Agnieszka
    • Journal Title

      Nature Communications

      Volume: 14 Issue: 1 Pages: 5071-5071

    • DOI

      10.1038/s41467-023-40695-y

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] A targeted protein knockdown with the power of plants2023

    • Author(s)
      Masato Kanemaki
    • Organizer
      TDP Japan (Shonan iPark, Japan)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] The mechanism defining replication initiation zone in human cells2023

    • Author(s)
      Masato Kanemaki
    • Organizer
      CSHL meeting on DNA replication (NY, USA)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Replication initiation in human cells2023

    • Author(s)
      鐘巻将人
    • Organizer
      日本生化学会年会(福岡)
    • Related Report
      2023 Annual Research Report
  • [Presentation] Targeted protein degradation with the power of plant2023

    • Author(s)
      鐘巻将人
    • Organizer
      MBSJ2023(神戸)
    • Related Report
      2023 Annual Research Report

URL: 

Published: 2023-04-13   Modified: 2025-06-20  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi