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Development of innovative and versatile tag-peptide sequences

Research Project

Project/Area Number 17H04887
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Bio-related chemistry
Research InstitutionOsaka Prefecture University

Principal Investigator

Fujieda Nobutaka  大阪府立大学, 生命環境科学研究科, 准教授 (00452318)

Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥24,830,000 (Direct Cost: ¥19,100,000、Indirect Cost: ¥5,730,000)
Fiscal Year 2020: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2019: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2018: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2017: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
KeywordsN末端修飾 / 翻訳後修飾 / 翻訳後化学修飾 / 自己水酸化 / ペプチドタグ / Tyrosine dimer / Self-hydroxylation / タンパク質修飾 / タグペプチド / タンパク質タグ
Outline of Final Research Achievements

Some copper oxidases bear the cofactors which is generated by post-translationally chemical modification of the corresponding amino acid side chains near the copper active center. If such unusual cofactors are able to be formed on the small peptide and proteins, they will be promising tools for the modification of protein and the direct observation of the labeled-proteins in the cells. In this study, we have prepared rationally designed copper-binding peptides and proteins, which can induce the organic cofactors by posttranslationally chemical modifications. The structures and spectroscopic properties of the generated unusual amino acids were examined by several analytical methods including MS analysis and UV-vis spectroscopy.

Academic Significance and Societal Importance of the Research Achievements

緑色蛍光タンパク質などにおいては標的タンパク質が発現されるに伴って自発的に蛍光団が形成するため、利用部位を問わない。そのため、他の手法とは一線を画し、簡便でかつ、生きたままに最も近い生細胞の状態が直接観測可能となる。本研究ではこのタンパク質の小型化をはかり、生細胞に影響を与えないまま、適応範囲を拡張できる。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (13 results)

All 2021 2020 2019 2018 2017

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results) Presentation (10 results) (of which Int'l Joint Research: 1 results,  Invited: 5 results)

  • [Journal Article] Copper‐oxygen Dynamics in Tyrosinase Mechanism2020

    • Author(s)
      Fujieda Nobutaka、Umakoshi Kyohei、Ochi Yuta、Nishikawa Yosuke、Yanagisawa Sachiko、Kubo Minoru、Kurisu Genji、Itoh Shinobu
    • Journal Title

      Angewandte Chemie International Edition

      Volume: - Issue: 32 Pages: 13385-13390

    • DOI

      10.1002/anie.202004733

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] His-Cys and Trp-Cys cross-links generated by post-translational chemical modification2019

    • Author(s)
      Fujieda Nobutaka
    • Journal Title

      Bioscience, Biotechnology, and Biochemistry

      Volume: 84 Issue: 3 Pages: 445-454

    • DOI

      10.1080/09168451.2019.1696178

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] (1)Tyrosinases in organic chemistry: a versatile tool for the α-arylation of β-dicarbonyl compounds2018

    • Author(s)
      Roxanne Krug, Dennis Schder, Jan Gebauer, Sanel Suljic;, Yuma Morimoto, Nobutaka Fujieda, Shinobu Itoh, and Jorg Pietruszka
    • Journal Title

      Euro. J. Org. Chem.

      Volume: 2018 Issue: 15 Pages: 1789-1796

    • DOI

      10.1002/ejoc.201800188

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] タンパク質金属配位子を利用した反応制御2021

    • Author(s)
      藤枝伸宇
    • Organizer
      分子研研究会「錯体化学に基づく分子の構造変換設計と機能制御」
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Artificial Metalloenzymes Bearing a Cupin Fold2019

    • Author(s)
      Nobutaka Fujieda
    • Organizer
      ArtZymes 2.0
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 特異な翻訳後修飾アミノ酸を有する金属酵素の機能解析および新規創製2019

    • Author(s)
      藤枝伸宇
    • Organizer
      2019年度日本農芸化学会関西支部大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 高機能性配位子としてのタンパク質2018

    • Author(s)
      藤枝伸宇
    • Organizer
      生体機能関連化学若手の会 第30回サマースクール
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] チロシナーゼの成熟過程と反応機構2018

    • Author(s)
      藤枝伸宇
    • Organizer
      第91回生化学会大会シンポジウム
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 繊維状ペプチド集積体を用いた不斉錯体触媒の開発2018

    • Author(s)
      殿村篤史・藤枝伸宇・伊東 忍
    • Organizer
      第45回生体分子科学討論会
    • Related Report
      2018 Annual Research Report
  • [Presentation] チロシナーゼと阻害剤複合体の結晶構造解析2018

    • Author(s)
      越智祐太・馬越恭平・藤枝伸宇・伊東 忍
    • Organizer
      第45回生体分子科学討論会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 線維状ペプチド集積体を用いた不斉銅錯体触媒の開発2018

    • Author(s)
      藤枝伸宇・殿村篤史・伊東 忍
    • Organizer
      第31回生物無機夏期セミナー
    • Related Report
      2018 Annual Research Report
  • [Presentation] 有機ラジカル活性種を含む人工金属酵素の設計と特性評価2017

    • Author(s)
      山脇沙耶香・谷口勇希・藤枝伸宇・伊東 忍
    • Organizer
      第11回バイオ関連化学シンポジウム
    • Related Report
      2017 Annual Research Report
  • [Presentation] 新規なペプチド架橋構造を有する人工金属酵素の構築2017

    • Author(s)
      山脇沙耶香・谷口勇希・藤枝伸宇・伊東 忍
    • Organizer
      日本化学会第98回春季年会
    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2022-01-27  

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