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Sequence specific detection and manipulation of epigenetic status

Research Project

Project/Area Number 16H03281
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Biomolecular chemistry
Research InstitutionKyoto University

Principal Investigator

Imanishi Miki  京都大学, 化学研究所, 講師 (80362391)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥18,980,000 (Direct Cost: ¥14,600,000、Indirect Cost: ¥4,380,000)
Fiscal Year 2018: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2017: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2016: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Keywords核酸結合タンパク質 / 核酸修飾 / メチル化シトシン / TALE / TALEタンパク質 / エピゲノム
Outline of Final Research Achievements

Methylated cytosine (5mC) is important for the regulation of transcription, and is involved in development, differentiation, carcinogenesis, etc. Furthermore, the importance of RNA methylation is also becoming clear. In this study, with the aim of developing a technique for DNA/RNA sequence-specific detection and control of the methylation status in living cells, I focused on the following points; (1) Development of DNA binding protein capable of selectively recognizing cytosine methylation in a specific genomic sequence, (2) detection of methylation in living cells using designed methylation discrimination protein, and (3) Detection and control of RNA methylation status.

Academic Significance and Societal Importance of the Research Achievements

本研究で得られたメチル化シトシン選択性を有するDNA結合ユニットを利用することで、メチル化状態に依存したゲノム改変や転写調節が実現する。すなわち、正常細胞には影響を及ぼさず、メチル化機構に異常をきたしたガン細胞のみに作用するといった、副作用の少ない遺伝子標的治療への応用も期待される。また、本システムを利用して、従来の網羅的なメチル化解析に続くステップである「個々のメチル化の意義」に答えることで、エピゲノムの重要性が示唆されている発ガン、発生、分化、体内時計のメカニズム解明や創薬標的の決定、未だ萌芽的なRNAメチル化研究の推進に貢献すると期待される。

Report

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

    (24 results)

All 2018 2017 2016 Other

All Int'l Joint Research (2 results) Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (18 results) (of which Int'l Joint Research: 8 results,  Invited: 6 results)

  • [Int'l Joint Research] Colorado State University(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Shandong Agricultural University(China)

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Sequence-specific 5mC detection in live cells based on the TALE-split luciferase complementation system2018

    • Author(s)
      Shogo Tsuji, Kouki Shinoda, Shiorh Futaki, MIki Imanishi
    • Journal Title

      Analyst

      Volume: 143 Issue: 16 Pages: 3793-3797

    • DOI

      10.1039/c8an00562a

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Nested PUF Proteins: Extending Target RNA Elements for Gene Regulation2018

    • Author(s)
      Kouki Shinoda, Shogo Tsuji, Shiroh Futaki, Miki Imanishi
    • Journal Title

      Chembiochem

      Volume: 19 Issue: 2 Pages: 171-176

    • DOI

      10.1002/cbic.201700458

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Detection of N6-Methyladenosine Based on the Methyl-Sensitivity of MazF RNA endonuclease2017

    • Author(s)
      Miki Imanishi, Shogo Tsuji, Akiyo Suda, Shiroh Futaki
    • Journal Title

      Chem Commun

      Volume: 53 Issue: 96 Pages: 12930-12933

    • DOI

      10.1039/c7cc07699a

    • NAID

      120006888026

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Sequence-Specific Recognition of Methylated DNA by an Engineered Transcription Activator-Like Effector Protein2016

    • Author(s)
      Shogo Tsuji, Shiroh Futaki and Miki Imanishi
    • Journal Title

      Chem. Commun.

      Volume: 52 Issue: 99 Pages: 14238-14241

    • DOI

      10.1039/c6cc06824c

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] エンドリボヌクレアーゼMazFを用いたN6-メチルアデノシン調節酵素活性の検出法の開発2018

    • Author(s)
      今西未来、須田明代、二木史朗
    • Organizer
      第65回日本生化学会近畿支部例会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 核酸修飾を標的とした遺伝子操作2018

    • Author(s)
      今西未来
    • Organizer
      2018年度 先端分析・機能創発研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Design of Nucleic Acid Binding Proteins to Control Cellular Events2018

    • Author(s)
      今西未来
    • Organizer
      熊本大学発生研リエゾンラボ研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Artificial DNA/RNA Binding Proteins Regulating Specific Gene Expression2018

    • Author(s)
      Miki Imanishi
    • Organizer
      The Fifth Asian Chemical Biology Conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Detection of the m6A-Regulatory-Enzymes Activities Using an Endoribonuclease, MazF2018

    • Author(s)
      Miki Imanishi, Akiyo Suda, Shiroh Futaki
    • Organizer
      RNA 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] RNA切断酵素MazFを利用したN6-メチルアデノシン調節酵素活性検出法の開発2018

    • Author(s)
      今西未来、須田明代、二木史朗
    • Organizer
      日本ケミカルバイオロジー学会 第13回年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Site-Specific Regulation Of RNA Demethylation Based on Sequence-specific RNA Binding Proteins2018

    • Author(s)
      Kouki Shinoda, Miki Imanishi, Shiroh Futaki
    • Organizer
      10th International Peptide Symposium/第55回ペプチド討論会
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 遺伝子発現を制御する人工タンパク質の創製2018

    • Author(s)
      今西未来
    • Organizer
      日本化学会第98春季年会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] 新規メチル化シトシン検出法を志向したTALEタンパク質の機能改変2017

    • Author(s)
      辻将吾、二木史朗、今西未来
    • Organizer
      日本薬学会第137年会
    • Place of Presentation
      東北大学
    • Year and Date
      2017-03-26
    • Related Report
      2016 Annual Research Report
  • [Presentation] メチル化シトシン選択性を有する ゲノム編集ツールの創製2017

    • Author(s)
      今西未来
    • Organizer
      日本薬学会第137年会
    • Place of Presentation
      東北大学
    • Year and Date
      2017-03-25
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Extending RNA sequence recognition of PUF proteins toward RNA sequence-specific regulation2017

    • Author(s)
      Kouki Shinoda, Miki Imanishi, Shiroh Futaki
    • Organizer
      RNA2017 The 22nd Annual Meeting of the RNA Society
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Enzymatic detection of activities of m6A RNA methyltransferases and demetylases2017

    • Author(s)
      Miki Imanishi, Akiyo Suda, Shiroh Futaki
    • Organizer
      RNA2017 The 22nd Annual Meeting of the RNA Society
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of a simple strategy to detect activities of N6-methyladenosine regulatory enzymes2017

    • Author(s)
      Miki Imanishi, Akiyo Suda, Shiroh Futaki
    • Organizer
      ISBC2017 The International Symposium on Biofunctional Chemistry
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Engineering of nested PUF proteins with 16 RNA-binding repeats for regulation of endogenous RNA2017

    • Author(s)
      Kouki Shinoda, Miki Imanishi, Shiroh Futaki
    • Organizer
      ISBC2017 The International Symposium on Biofunctional Chemistry
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] RNA結合タンパク質PUFの認識塩基数拡張と内在RNAの制御2017

    • Author(s)
      篠田 昂樹、今西 未来、二木 史朗
    • Organizer
      ConBio2017生命科学系合同年次大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 配列選択的RNA結合蛋白質PUFの結合領域の拡張と遺伝子発現制御2017

    • Author(s)
      今西 未来、篠田 昂樹、辻 将吾、二木 史朗
    • Organizer
      第11回バイオ関連化学シンポジウム
    • Related Report
      2017 Annual Research Report
  • [Presentation] Engineering of nucleic acid binding proteins toward manipulation of gene expression2017

    • Author(s)
      Miki Imanishi
    • Organizer
      日中若手女性研究者会議
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 天然にないDNA認識能を持つTALEタンパク質の開発2016

    • Author(s)
      今西未来
    • Organizer
      第89回日本生化学会大会
    • Place of Presentation
      仙台国際センター
    • Year and Date
      2016-09-25
    • Related Report
      2016 Annual Research Report
    • Invited

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

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