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Development of binding scaffold with a protein from a hyperthermophilic archaeon

Research Project

Project/Area Number 19K05827
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38030:Applied biochemistry-related
Research InstitutionOsaka University

Principal Investigator

Koga Yuichi  大阪大学, 工学研究科, 准教授 (30379119)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords可溶性改変 / binding scaffold / 熱安定性 / Binding scaffold / 人工抗体 / ファージディスプレイ / 可溶性発現 / Binfing scaffold / scaffold protein / thermalstability / phage display / antibody
Outline of Research at the Start

人工抗体分子として活用できるscaffoldタンパク質の開発を行う。Scaffold タンパク質とは、分子全体構造を構成する分子骨格と改変可能な標的結合領域からなり、結合領域をタンパク質工学的に改変することによって、任意の標的に特異的に結合する分子を得るためのプラットフォームである。本研究では、超好熱菌由来酵素で、極めて高い安定性と、金属イオン配位による構造変化が予測できる、免疫グロブリン型タンパク質ドメインを材料として、高安定性、低分子、高生産性、高改変性等の第三世代抗体医薬品として求められる特性を持った新規のタンパク質scaffoldを開発する

Outline of Final Research Achievements

A thermostable protein domain from a protease is expected to develop to artificial binding scaffold. To improve the solubility of SD1, SD1 protein was mutated by rational design using several structure prediction programs (foldx and Tango). The designed mutants were expressed in E. coli, and mutations of SD1 surface residues (Y15K, W18R, S106R) improved solubility expression. Furthermore, introduction of mutations (S26K, Q91P) in the aggregation-prone region (APR) identified by calculation improved soluble expression.

Academic Significance and Societal Importance of the Research Achievements

超好熱菌由来プロテアーゼの一部であるSD1は、抗体の基質結合ドメインと類似の構造をとっており、標的に対して特異的に結合する分子(binding scaffold)としての開発が期待されるが、タンパク質の可溶性に問題があった。本研究で可溶性の向上したSD1が得られたことから、SD1のbinding scaffoldとしての課題を解決したものである。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (8 results)

All 2021 2020 2019

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (4 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Production of monoclonal shark-derived immunoglobulin new antigen receptor antibodies using Chinese hamster ovary cell expression system2021

    • Author(s)
      Hajime Enatsu, Nako Okamoto, Yoshiki Nomura, Masayoshi Onitsuka, Noriko Yamano-Adachi, Yuichi Koga, Takeshi Omasa
    • Journal Title

      Journal of bioscience and bioengineering

      Volume: 132 Issue: 3 Pages: 302-309

    • DOI

      10.1016/j.jbiosc.2021.04.015

    • NAID

      40022688030

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Insertion loop‐mediated folding propagation governs efficient maturation of hyperthermophilic Tk‐subtilisin at high temperatures2020

    • Author(s)
      Uehara R., Dan N., Amesaka H., Yoshizawa T., Koga Y.., Kanaya S., Takano K., Matsumura H., Tanaka SI.
    • Journal Title

      FEBS letters

      Volume: 594 Issue: 4 Pages: 452-461

    • DOI

      10.1002/1873-3468.14028

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Affinity shift of ATP upon glycerol binding to a glycerol kinase from the hyperthermophilic archaeon Thermococcus kodakarensis KOD12020

    • Author(s)
      Hokao R., Matsumura H., Katsumi R., Angkawidjaja C., Takano K., Kanaya S., Koga Y.
    • Journal Title

      J. Biosci. Bioeng.

      Volume: 129 Issue: 6 Pages: 657-663

    • DOI

      10.1016/j.jbiosc.2019.12.008

    • NAID

      40022261697

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Anaerobic glycerol-3-phosphate dehydrogenase complex from hyperthermophilic archaeon Thermococcus kodakarensis KOD1.2019

    • Author(s)
      Koga Y., Konishi K., Kobayashi A., Kanaya S., Takano K.
    • Journal Title

      Journal of Bioscience and Biotechnology

      Volume: 127 Issue: 6 Pages: 679-685

    • DOI

      10.1016/j.jbiosc.2018.11.012

    • NAID

      40021920321

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Protein trans-splicingを利用した耐熱性プロテアーゼ再構成の検討2019

    • Author(s)
      巽 祐介,山野-足立 範子, 古賀 雄一, 大政 健史
    • Organizer
      第71回日本生物工学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 有機溶媒中におけるTk-subtilisinの酵素活性の解析2019

    • Author(s)
      宮田大暉, 山野-足立 範子, 古賀 雄一, 大政 健史
    • Organizer
      第71回日本生物工学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 超好熱古細菌(始原菌)由来プロテアーゼ(Tk-SP)のProペプチドが成熟化に与える影響2019

    • Author(s)
      長尾征秀, 前川大樹, 山野-足立 範子, 古賀 雄一, 大政 健史
    • Organizer
      第71回日本生物工学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Novel application of proteins from hyperthermophiles2019

    • Author(s)
      古賀雄一
    • Organizer
      Thai society of biotechnology 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2019-04-18   Modified: 2023-01-30  

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