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Development of micro second measurement for functional analysis of DNA binding proteins

Research Project

Project/Area Number 16K07313
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Biophysics
Research InstitutionTohoku University

Principal Investigator

Kamagata Kiyoto  東北大学, 多元物質科学研究所, 准教授 (90432492)

Research Collaborator TAKAHASHI SATOSHI  
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: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywordsがん / 蛋白質 / 一分子計測 / DNA / 1分子計測(SMD) / 遺伝子 / 分子認識 / 生体分子
Outline of Final Research Achievements

DNA-binding proteins can search for and bind to the target DNA sequence among a huge non-target sequence. We hypothesized that the proteins use “hopping” and “intersegmental transfer”, which is difficult to measure, during the target search. In this study, we developed sub-millisecond time resolved single-molecule fluorescence microscopy for DNA-binding proteins and aligned DNA array “DNA garden”, and investigated the target search mechanism of the proteins by visualizing the motion at single molecule level. We found that a tumor suppressor p53 searches for the target DNA by hopping and intersegmental transfer. Furthermore, we revealed the accuracy for recognizing the target DNA and proposed the molecular mechanism for bypassing the obstacles on DNA.

Academic Significance and Societal Importance of the Research Achievements

がんなどの疾患は、p53などのDNA結合蛋白質がDNAの標的配列を探索できず結合できないことに起因するため、DNA結合蛋白質の標的配列探索の仕組みの解明は重要である。本研究の特徴は、p53が標的配列を探索する過程を可視化し、従来の方法では計測が難しい、ホッピングやセグメント間移動による探索を検証することである。マイクロ秒時間分解単分子計測法は、DNA結合タンパク質の機能の解明に貢献する。さらに、開発したDNA整列固定法は、世界でもっとも簡便で単純な方法である。このDNA整列固定による単分子計測は、様々なDNA結合蛋白質の探索の仕組みの解明、薬候補のスクリーニングなどの創薬に使用できる。

Report

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

    (45 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (2 results) Journal Article (10 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 10 results,  Open Access: 1 results,  Acknowledgement Compliant: 3 results) Presentation (33 results) (of which Int'l Joint Research: 8 results,  Invited: 12 results)

  • [Int'l Joint Research] カリフォルニア大学ロサンゼルス校(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] カリフォルニア大学ロサンゼルス校(米国)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Intrinsically disordered domain of tumor suppressor p53 facilitates target search by ultrafast transfer between different DNA strands2018

    • Author(s)
      Itoh Yuji、Murata Agato、Takahashi Satoshi、Kamagata Kiyoto
    • Journal Title

      Nucleic Acids Research

      Volume: 46 Issue: 14 Pages: 7261-7269

    • DOI

      10.1093/nar/gky586

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] High Free-Energy Barrier of 1D Diffusion Along DNA by Architectural DNA-Binding Proteins2018

    • Author(s)
      Kamagata Kiyoto、Mano Eriko、Ouchi Kana、Kanbayashi Saori、Johnson Reid C.
    • Journal Title

      Journal of Molecular Biology

      Volume: 430 Issue: 5 Pages: 655-667

    • DOI

      10.1016/j.jmb.2018.01.001

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] DNA-binding regulation of tumor suppressor p53 revealed by biophysical approach2017

    • Author(s)
      鎌形 清人、伊藤 優志
    • Journal Title

      生化学

      Volume: 89 Issue: 4 Pages: 533-537

    • DOI

      10.14952/SEIKAGAKU.2017.890533

    • NAID

      40021312474

    • ISSN
      0037-1017
    • Year and Date
      2017-08-25
    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] The Disordered Linker in p53 Participates in Nonspecific Binding to and One-Dimensional Sliding along DNA Revealed by Single-Molecule Fluorescence Measurements2017

    • Author(s)
      Subekti Dwiky Rendra Graha、Murata Agato、Itoh Yuji、Fukuchi Satoshi、Takahashi Hiroto、Kanbayashi Saori、Takahashi Satoshi、Kamagata Kiyoto
    • Journal Title

      Biochmistry

      Volume: 56 Issue: 32 Pages: 4134-4144

    • DOI

      10.1021/acs.biochem.7b00292

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] One-Dimensional Search Dynamics of Tumor Suppressor p53 Regulated by a Disordered C-Terminal Domain2017

    • Author(s)
      Murata Agato、Itoh Yuji、Mano Eriko、Kanbayashi Saori、Igarashi Chihiro、Takahashi Hiroto、Takahashi Satoshi、Kamagata Kiyoto
    • Journal Title

      Biophysical Journal

      Volume: 112 Issue: 11 Pages: 2301-2314

    • DOI

      10.1016/j.bpj.2017.04.038

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Probing native metal ion association sites through quenching of fluorophores in the nucleotide-binding domains of the ABC transporter MsbA2017

    • Author(s)
      Daiki Tatsumi, Kei Nanatani, Yuto Koike, Kiyoto Kamagata, Satoshi Takahashi, Ayumu Konno, Tadaomi Furuta, Minoru Sakurai, Nobuyuki Uozumi
    • Journal Title

      Biochem. J.

      Volume: 474 Issue: 12 Pages: 1993-2007

    • DOI

      10.1042/bcj20161051

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Finding the target: Characterization of the facilitated diffusion of transcriptional factor p53 along DNA using ensemble kinetic and single-molecule fluorescence measurements2017

    • Author(s)
      Kamagata K., Murata A., Itoh Y., Takahashi S.
    • Journal Title

      J. Photochem. Photobiol., C: Photochem. Reviews

      Volume: 30 Pages: 36-50

    • DOI

      10.1016/j.jphotochemrev.2017.01.004

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] DNA garden: A simple method for producing arrays of stretchable DNA for single-molecule fluorescence imaging of DNA binding proteins2017

    • Author(s)
      Igarashi C., Murata A., Itoh Y., Subekti D. R. G., Takahashi S., Kamagata K.
    • Journal Title

      Bull. Chem. Soc. Jpn.

      Volume: 90 Issue: 1 Pages: 34-43

    • DOI

      10.1246/bcsj.20160298

    • NAID

      130005289868

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Activation of p53 facilitates the target search in DNA by enhancing the target recognition probability2016

    • Author(s)
      Itoh Y., Murata A., Sakamoto S., Nanatani K., Wada T., Takahashi S., Kamagata K.
    • Journal Title

      J. Mol. Biol.

      Volume: 428 Issue: 14 Pages: 2916-2930

    • DOI

      10.1016/j.jmb.2016.06.001

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Single-molecule Characterization of Sliding Dynamics of Tumor Suppressor p53 along DNA2016

    • Author(s)
      村田崇人、伊藤優志、鎌形清人
    • Journal Title

      Seibutsu Butsuri

      Volume: 56 Issue: 2 Pages: 109-111

    • DOI

      10.2142/biophys.56.109

    • NAID

      130005140949

    • ISSN
      0582-4052, 1347-4219
    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] 天然変性タンパク質p53は液-液相分離するのか?2019

    • Author(s)
      鎌形清人
    • Organizer
      第2回LLPS研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 単分子蛍光顕微鏡を用いた 天然変性タンパク質p53とDNAの 相互作用解析2019

    • Author(s)
      鎌形清人
    • Organizer
      「水和とATPエネルギー」研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Single molecule dynamics and aggregation in intrinsically disordered protein p532019

    • Author(s)
      Kamagata Kiyoto
    • Organizer
      RIKEN Symposium "Recent Progress in Protein Conformation and Aggregation"
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 天然変性タンパク質を対象とした機能調整ペプチドの人工設計法の開発 -がん抑制タンパク質p53への応用-2019

    • Author(s)
      鎌形清人
    • Organizer
      第4回 東北大学若手研究者アンサンブル研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Ecological search dynamics of DNA-binding proteins for target DNA2018

    • Author(s)
      Kamagata Kiyoto
    • Organizer
      An Update on Molecular Motors: Open Challenges and New Perspectives
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Single-molecule fluorescence imaging of architectural DNA-binding proteins in vitro and in vivo2018

    • Author(s)
      Kiyoto Kamagata, Eriko Mano, Sridhar Mandali, Yuji Itoh, Reid C. Johnson
    • Organizer
      第56回日本生物物理学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Single-molecule characterization of tumor suppressor protein p53 using DNA garden2018

    • Author(s)
      Kamagata Kiyoto
    • Organizer
      3rd international symposium on chemical communication
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 天然変性DNA結合タンパク質p53の濃度依存的な物性の変化ーLLPSとの関連性ー2018

    • Author(s)
      鎌形清人
    • Organizer
      LLPS研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] DNA結合タンパク質の単分子蛍光観察―DNA上における障害物回避―2018

    • Author(s)
      鎌形清人, 間野絵梨子, MANDALI Sridhar, 大内加奈, 伊藤優志, JOHNSON Reid C.
    • Organizer
      日本蛋白質科学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] DNA整列固定技術を用いたDNA結合タンパク質の単分子蛍光観察2018

    • Author(s)
      鎌形清人, 間野絵梨子, MANDALI Sridhar, 大内加奈, 伊藤優志, 高橋聡, JOHNSON Reid C.
    • Organizer
      東北大学多元物質科学研究所研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Single-molecule investigation of the sliding dynamics of architectural DNA-binding proteins along crowded DNA using DNA garden technique2018

    • Author(s)
      Kana Ouchi, Reid C. Johnson, Satoshi Takahashi, Kiyoto Kamagata
    • Organizer
      第56回日本生物物理学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Single-molecule observation of the target search dynamics of a tumor suppressor p532018

    • Author(s)
      Yuji Itoh, Agato Murata, Satoshi Takahashi, Kiyoto Kamagata
    • Organizer
      第56回日本生物物理学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Development of the Sub-millisecond Resolved Single-molecule Fluorescence Microscopy for the Functional Analysis of DNA-binding Proteins2018

    • Author(s)
      Dwiky R.G. Subekti, Agato Mutata, Yuji Itoh, Reid C. Johnson, Satoshi Takahashi, Kiyoto Kamagata
    • Organizer
      日本蛋白質科学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] DNA整列固定技術を用いたDNA結合タンパク質の単分子蛍光観察2018

    • Author(s)
      鎌形清人, 間野絵梨子, MANDALI Sridhar, 大内加奈, 伊藤優志, JOHNSON Reid C.
    • Organizer
      細胞を作る会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Single-molecule characterization of DNA-binding protein using DNA arrays “DNA garden”-welcome to biophysical world-2018

    • Author(s)
      Kiyoto Kamagata
    • Organizer
      Biological Chemistry Seminar
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Single-molecule characterization of p53 on DNA using DNA array “DNA garden”2018

    • Author(s)
      Kiyoto Kamagata, Agato Murata, Yuji Itoh, Dwiky Rendra Graha Subekti
    • Organizer
      62nd annual meeting of Biophysical Society
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 実験と計算によるp53の標的DNA配列探索機能2017

    • Author(s)
      北尾彰朗、鎌形清人、高橋聡
    • Organizer
      日本化学会第97春季年会
    • Place of Presentation
      慶応大学(神奈川県横浜市)
    • Year and Date
      2017-03-16
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 多分子及び一分子蛍光分光法によるがん抑制タンパク質p53の超高速セグメント間移動の解明2017

    • Author(s)
      伊藤優志、村田崇人、高橋聡、鎌形清人
    • Organizer
      第17回蛋白質科学会年会
    • Related Report
      2017 Research-status Report
  • [Presentation] Single-molecule characterization of p53 on DNA using DNA array “DNA garden”2017

    • Author(s)
      Kiyoto Kamagata, Agato Murata, Yuji Itoh
    • Organizer
      The 17th International p53 Workshop
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Ultrafast intersegmental transfer of a tumor suppressor p53 characterized by ensemble and single-molecule fluorescence spectroscopy2017

    • Author(s)
      Yuji Itoh, Agato Murata, Satoshi Takahashi, Kiyoto Kamagata
    • Organizer
      The 17th International p53 Workshop
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] p53-DNA Interaction: Effect of Linker Modulation on Binding and Sliding2017

    • Author(s)
      Dwiky Rendra Graha Subekti, Agato Murata, Yuji Itoh, Satoshi Takahashi, Kiyoto Kamagata
    • Organizer
      The 17th International p53 Workshop
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Ultrafast intersegmental transfer of a tumor suppressor p53 investigated by ensemble and single-molecule measurements2016

    • Author(s)
      Yuji Itoh, Agato Murata, Satoshi Takahashi, Kiyoto Kamagata
    • Organizer
      第16回東北大学多元物質科学研究所研究発表会
    • Place of Presentation
      東北大学(宮城県仙台市)
    • Year and Date
      2016-12-07
    • Related Report
      2016 Research-status Report
  • [Presentation] がん抑制蛋白質の単分子機能解析2016

    • Author(s)
      鎌形清人、村田崇人、伊藤優志、高橋聡
    • Organizer
      ダイナミックアライアンスG3分会
    • Place of Presentation
      北海道大学(北海道札幌市)
    • Year and Date
      2016-12-01
    • Related Report
      2016 Research-status Report
  • [Presentation] Ultrafast intersegmental transfer of a tumor suppressor p53 investigated by ensemble and single-molecule measurements2016

    • Author(s)
      Yuji Itoh, Agato Murata, Satoshi Takahashi, and Kiyoto Kamagata
    • Organizer
      第54回日本生物物理学会年会
    • Place of Presentation
      つくば国際会議場(茨城県つくば市)
    • Year and Date
      2016-11-25
    • Related Report
      2016 Research-status Report
  • [Presentation] Single-molecule characterization of DNA-binding proteins with stretchable DNA array2016

    • Author(s)
      Kiyoto Kamagata
    • Organizer
      第54回日本生物物理学会年会
    • Place of Presentation
      つくば国際会議場(茨城県つくば市)
    • Year and Date
      2016-11-25
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] Elongation of Intrinsically Disordered Linker in p53 and the Effects on DNA Binding and Sliding Ability2016

    • Author(s)
      Dwiky Rendra Graha Subekti, Agato Murata,Yuji Itoh, Satoshi Takahashi, Kiyoto Kamagata
    • Organizer
      第54回日本生物物理学会年会
    • Place of Presentation
      つくば国際会議場(茨城県つくば市)
    • Year and Date
      2016-11-25
    • Related Report
      2016 Research-status Report
  • [Presentation] Target search dynamics of tumor suppressor p53 revealed by ensemble kinetic and single-molecule fluorescence measurements2016

    • Author(s)
      Kiyoto Kamagata, Agato Murata and Yuji Itoh
    • Organizer
      The 10th 3R Symposium
    • Place of Presentation
      ホテル一畑(島根県松江市)
    • Year and Date
      2016-11-13
    • Related Report
      2016 Research-status Report
  • [Presentation] Single-molecule investigation of DNA-binding proteins2016

    • Author(s)
      Kiyoto Kamagata
    • Organizer
      平成28年度化学系学協会東北大会
    • Place of Presentation
      いわき明星大学(福島県いわき市)
    • Year and Date
      2016-09-10
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] Investigation of Intersegmental Transfer in the Target Search of a Tumor Suppressor Protein p532016

    • Author(s)
      Yuji Itoh, Agato Murata, Satoshi Takahashi, and Kiyoto Kamagata
    • Organizer
      Tohoku University’s Chemistry Summer School 2016
    • Place of Presentation
      東北大学(宮城県仙台市)
    • Year and Date
      2016-08-18
    • Related Report
      2016 Research-status Report
  • [Presentation] Activation of a transcription factor p53 by the regulation of the target recognition probability2016

    • Author(s)
      Yuji Itoh, Agato Murata, Seiji Sakamoto, Kei Nanatani, Takehiko Wada, Satoshi Takahashi, and Kiyoto Kamagata
    • Organizer
      新学術領域「柔らかな分子系」第5回全体合宿会議
    • Place of Presentation
      ホテルベルナティオ(新潟県十日町市)
    • Year and Date
      2016-05-30
    • Related Report
      2016 Research-status Report
  • [Presentation] DNA整列固定法の開発とDNA結合蛋白質の単分子蛍光観察2016

    • Author(s)
      鎌形清人
    • Organizer
      生物物理学会東北支部会
    • Place of Presentation
      東北大学(宮城県仙台市)
    • Related Report
      2016 Research-status Report
  • [Presentation] Elongation of Intrinsically Disordered Linker in p53 and the Effects on DNA Binding and Sliding Ability2016

    • Author(s)
      Dwiky Rendra Graha Subekti, Agato Murata,Yuji Itoh, Satoshi Takahashi, Kiyoto Kamagata
    • Organizer
      生物物理学会東北支部会
    • Place of Presentation
      東北大学(宮城県仙台市)
    • Related Report
      2016 Research-status Report
  • [Presentation] 単分子蛍光顕微鏡を用いたDNA結合蛋白質p53の機能解析2016

    • Author(s)
      鎌形清人
    • Organizer
      Ambitious物質科学セミナー
    • Place of Presentation
      北海道大学(北海道札幌市)
    • Related Report
      2016 Research-status Report
    • Invited

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Published: 2016-04-21   Modified: 2022-02-21  

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