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Designing a highly specific transcription factor

Research Project

Project/Area Number 26840054
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Biophysics
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

Sunami Tomoko  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 量子ビーム応用研究センター, 研究副主幹 (50554648)

Project Period (FY) 2014-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords転写因子 / タンパク質・DNA相互作用 / Bacterial One-Hybrid法 / B1Hアッセイ / DNA / ホメオドメイン
Outline of Final Research Achievements

Our purpose is to develop proteins with properties different from widely used genome-editing proteins such as TALEN and CRISPR. In this study, we rationally designed novel proteins based on engrailed homeodomain and confirmed the binding specificity using bacterial one-hybrid assay. We successfully designed molecules with a strong affinity and high specificity for the target sequence which has two engrailed homeodomain binding sites. Also, we developed a method to evaluate molecular flexibility of DNA using electron density map of X-ray crystal structures.

Report

(3 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • Research Products

    (4 results)

All 2015 2014

All Presentation (4 results)

  • [Presentation] Designing a new artificial transcription factor based on engrailed homeodomain2015

    • Author(s)
      角南 智子, 河野 秀俊
    • Organizer
      第38回日本分子生物学会
    • Place of Presentation
      神戸ポートアイランド(兵庫県神戸市)
    • Year and Date
      2015-12-01
    • Related Report
      2015 Annual Research Report
  • [Presentation] Reconsidered DNA conformations in crystal structures2015

    • Author(s)
      角南 智子, 河野 秀俊
    • Organizer
      第52回生物物理学会年会
    • Place of Presentation
      金沢大学 角間キャンパス(石川県金沢市)
    • Year and Date
      2015-09-13
    • Related Report
      2015 Annual Research Report
  • [Presentation] Designing a new artificial transcription factor based on engrailed homeodomain2015

    • Author(s)
      角南 智子, 河野 秀俊
    • Organizer
      第15回日本蛋白質科学会年会
    • Place of Presentation
      あわぎんホール(徳島県徳島市)
    • Year and Date
      2015-06-24
    • Related Report
      2015 Annual Research Report
  • [Presentation] エングレイルドホメオドメインを用いた新たな転写因子の設計2014

    • Author(s)
      角南智子・河野秀俊
    • Organizer
      第52回日本生物物理学会年会
    • Place of Presentation
      札幌コンベンションセンター(札幌)
    • Year and Date
      2014-09-13 – 2014-09-15
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2017-05-10  

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