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Studies on improvement and change of function of hemolytic lectin based on molecular modeling

Research Project

Project/Area Number 23580470
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Applied molecular and cellular biology
Research InstitutionIbaraki University

Principal Investigator

KOUZUMA Yoshiaki  茨城大学, 農学部, 准教授 (10284556)

Co-Investigator(Kenkyū-buntansha) KAKUTA Yoshimitsu  九州大学, 大学院・農学研究院, 准教授 (00314360)
Co-Investigator(Renkei-kenkyūsha) YOSHIDA Shigeto  金沢大学, 医薬保健研究域, 教授 (10296121)
Research Collaborator YONEKURA Masami  茨城大学, 農学部, 教授 (40134168)
Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsレクチン / 溶血 / マラリア
Research Abstract

In this study, mutants of hemolytic lectin CEL-III were constructed to improve the hemolytic activity and change the Ca-dependency. A fusion protein of earthworm lectin with pore-forming domain of CEL-III was constructed and showed hemagglutinating activity with no Ca-dependency. Furthermore, amino acid residues involved in stacking interaction with carbohydrate in five carbohydrate binding sites of CEL-III were replaced to other amino acids. Among the CEL-III mutants, five mutants (H36F, Y134H, Y181F,Y181W, Y222F) have a stronger hemolytic activity than wild type CEL-III.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (9 results)

All 2014 2013 2012 2011 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (7 results)

  • [Journal Article] Molecular cloning,recombinant expression,and characterization of isolectin genes of hemolytic lectin CEL-III from the marine invertebrate Cucumaria echinata2012

    • Author(s)
      Y. Shimizu,H. Yamazaki,S. Yoshida,M. Yonekura,and Y. Kouzuma
    • Journal Title

      Biosci. Biotechnol. Biochem

      Volume: 76 Pages: 276-282

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Molecular cloning, recombinant expression, and characterization of isolectin genes of hemolytic lectin CEL-III from the marine invertebrate Cucumaria echinata2012

    • Author(s)
      Y. Shimizu, H. Yamazaki, S. Yoshida, M. Yonekura, and Y. Kouzuma
    • Journal Title

      Bioscience, Biotechnology, and Biochemistry

      Volume: 76(2) Pages: 276-282

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Presentation] 溶血性レクチンCEL-IIIの溶血活性向上に向けた糖結合部位の変異体解析2014

    • Author(s)
      上妻由章、山田麻由、劉佳、清水良樹、米倉政実
    • Organizer
      第14回日本蛋白質科学会年会
    • Place of Presentation
      横浜産貿ホールマリネリア
    • Year and Date
      2014-06-25
    • Related Report
      2013 Final Research Report
  • [Presentation] 溶血性レクチンCEL-IIIの溶血活性向上にむけた糖結合部位の変異体解析2014

    • Author(s)
      上妻由章、山田麻由、劉佳、清水良樹、米倉政実
    • Organizer
      第14回日本蛋白質科学会年会
    • Place of Presentation
      横浜産貿ホールマリネリア
    • Related Report
      2013 Annual Research Report
  • [Presentation] 溶血性レクチンCEL-IIIの糖結合サブドメイン2ßへの変異導入による溶血活性の向上2013

    • Author(s)
      上妻由章、清水良樹、米倉政実
    • Organizer
      日本農芸化学会大会
    • Place of Presentation
      東北大学
    • Year and Date
      2013-03-25
    • Related Report
      2013 Final Research Report
  • [Presentation] 糖結合サブドメインへの変異導入による溶血性レクチンCEL-IIIの機能向上2012

    • Author(s)
      清水良樹、米倉政実、上妻由章
    • Organizer
      日本農芸化学会2012年度大会
    • Place of Presentation
      京都女子大学
    • Year and Date
      2012-03-24
    • Related Report
      2013 Final Research Report 2011 Research-status Report
  • [Presentation] 海産無脊椎動物グミ由来溶血性レクチンCEL-IIIの糖結合部位への変異導入による糖結合活性及び溶血活性に対する影響2011

    • Author(s)
      清水良樹、米倉政実、上妻由章
    • Organizer
      日本蛋白質化学会年会
    • Place of Presentation
      ホテル阪急エキスポパーク
    • Year and Date
      2011-06-07
    • Related Report
      2013 Final Research Report
  • [Presentation] 海産無脊椎動物グミ由来溶血性レクチンCEL-IIIの糖結合部位への変異導入による糖結合活性及び溶血活性に対する影響2011

    • Author(s)
      清水 良樹、米倉 政実、上妻 由章
    • Organizer
      日本蛋白質化学会年会
    • Place of Presentation
      ホテル阪急エキスポパーク(大阪)
    • Related Report
      2011 Research-status Report
  • [Presentation] 溶血性レクチンCEL-IIIの糖結合サブドメイン2βへの変異導入による溶血活性の向上

    • Author(s)
      上妻 由章、清水 良樹、米倉 政実
    • Organizer
      日本農芸化学会
    • Place of Presentation
      東北大学
    • Related Report
      2012 Research-status Report

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Published: 2011-08-05   Modified: 2019-07-29  

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