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Development of genetic test method utilizing DNA sequence recognition characteristics of TALE.

Research Project

Project/Area Number 18K04849
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 27040:Biofunction and bioprocess engineering-related
Research InstitutionUniversity of Toyama

Principal Investigator

Sakono Masafumi  富山大学, 学術研究部工学系, 准教授 (50391959)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords遺伝子検査 / TALEN / ゲノム編集 / オフターゲット効果 / TALE / BRET / 遺伝子変異 / DNA結合タンパク質
Outline of Final Research Achievements

When TALE was prepared by deliberately introducing a mismatch at a specific position, the difference in one base of DNA was clearly distinguished, and the dissociation constant changed dramatically. TALEN produced by the mismatch method selectively cleaved the target sequence, and did not cleave non-target sequences that differed by one base. This result means that the TALE prepared by the mismatch method has higher sequence specificity and accuracy than the TALE prepared by the conventional method.

Academic Significance and Societal Importance of the Research Achievements

ゲノム編集技術は細胞の特定の遺伝子を塩基配列特異的に編集できる技術だが、類似の塩基配列をもつ目的外の遺伝子の編集リスクが存在する。オフターゲット効果の低減は、発がんリスクの低減において極めて重要である。現在の塩基配列分析法において、in vivo遺伝子修正による目的遺伝子以外の遺伝子改変が生じた際の、改変部位の特定は非常に難しいといわれている。オフターゲット変異はゲノムワイドに生じることから、精度の高い全ゲノムシーケンス解析が要求される。したがって、意図しない編集が行われた際の部位特定は現状困難であり、治療の安全性を担保するには、正確性の高い遺伝子編集技術の開発が極めて重要であるといえる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (7 results)

All 2021 2020 2019 2018

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (4 results)

  • [Journal Article] Preparation of Luciferase-fused Peptides for Immunoassay of Amyloid Beta2021

    • Author(s)
      SAKONO Masafumi、ARISAWA Taiki、OHYA Takuma、SAKONO Naomi、MANAKA Atsushi
    • Journal Title

      Analytical Sciences

      Volume: 37 Issue: 5 Pages: 759-763

    • DOI

      10.2116/analsci.20SCP19

    • NAID

      130008036578

    • ISSN
      0910-6340, 1348-2246
    • Year and Date
      2021-05-10
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dimerization of ER-resident molecular chaperones mediated by ERp292021

    • Author(s)
      Nakao Hitomi、Seko Akira、Ito Yukishige、Sakono Masafumi
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 536 Pages: 52-58

    • DOI

      10.1016/j.bbrc.2020.12.023

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Repressor‐Like On‐Off Regulation of Protein Expression by the DNA‐Binding Transcription Activator‐Like Effector in T7 Promoter‐Based Cell‐Free Protein Synthesis2020

    • Author(s)
      Sakono Masafumi、Hayakawa Ryoto
    • Journal Title

      ChemBioChem

      Volume: 22 Issue: 5 Pages: 888-893

    • DOI

      10.1002/cbic.202000591

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] 一塩基の違いを区別するゲノム編集は可能か?2020

    • Author(s)
      大谷拓摩・迫野昌文
    • Organizer
      化学工学会第85年会
    • Related Report
      2019 Research-status Report
  • [Presentation] DNA結合タンパク質TALEを用いたBRETベース遺伝子変異検出法の開発2019

    • Author(s)
      大谷 拓摩・迫野 昌文
    • Organizer
      第19回日本蛋白質科学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] DNA結合タンパク質を用いた一塩基変異検出系の構築2018

    • Author(s)
      大谷拓摩・迫野昌文
    • Organizer
      第8回CSJ化学フェスタ2018
    • Related Report
      2018 Research-status Report
  • [Presentation] DNA結合タンパク質TALEを用いた一塩基変異検出系の開発2018

    • Author(s)
      大谷 拓摩・迫野 昌文
    • Organizer
      化学工学会 第50回秋季大会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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