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Engineering antibody stability using molecular simulations and machine learning

Research Project

Project/Area Number 17K18113
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Biophysics
Life / Health / Medical informatics
Research InstitutionThe University of Tokyo

Principal Investigator

Kuroda Daisuke  東京大学, 大学院工学系研究科(工学部), 講師 (60756732)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Discontinued (Fiscal Year 2019)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords抗体設計 / タンパク質工学 / 分子シミュレーション / 機械学習 / データベース / 熱安定性 / 凝集性 / 物理化学測定
Outline of Final Research Achievements

The purpose of this study was to develop a method to control the physical stability of antibodies using computational technology.
(1) We have created virtual libraries containing more than 6000 mutants by mutagenesis experiments in a computer. we have experimentally confirmed by using a differential scanning calorimeter and ELISA that there are mutants with improved thermal stability while maintaining affinity.
(2) We have compared amino acid sequences of a stable antibody and an unstable antibody, and mutations for stability improvement were identified. We were able to clarified stabilizing factors by using the molecular simulation. Based on the mutant information thus obtained, a prediction model for evaluating antibody stability by machine learning was constructed.

Academic Significance and Societal Importance of the Research Achievements

物質を分子レベルで自在に設計・制御する技術は、多くの研究者にとって「夢の技術」である。蛋白質の物性を自在に制御できるようになれば、基礎研究のみならず、蛋白質医薬品や新規素材開発への応用など、その社会へのインパクトも大きい。代表者が本助成により開発してきた計算・情報科学技術と、蛋白質工学や物理化学測定の実験手法を融合させることで、新たな分子操作技術の開発へ向けた次世代蛋白質工学への展開が期待できる。本研究で開発に取り組んだ、生体分子の物性を自在に制御するコンピュータシステムにより、将来的には抗体の完全人工設計や人工蛋白質の創製など、「夢の技術」の実現につながると考えている。

Report

(2 results)
  • 2019 Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (15 results)

All 2018 2017 Other

All Int'l Joint Research (1 results) Journal Article (4 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (10 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Int'l Joint Research] Johns Hopkins university(米国)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Intramolecular H-bonds govern the recognition of a flexible peptide by an antibody2018

    • Author(s)
      Miyanabe K, Akiba H, Kuroda D, Nakakido M, Kusano-Arai O, Iwanari H, Hamakubo T, Caaveiro JMM, Tsumoto K
    • Journal Title

      Journal of Biochemistry

      Volume: in press

    • NAID

      40021625331

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Repertoire analysis of antibody CDR-H3 loops suggests affinity maturation does not typically result in rigidification2018

    • Author(s)
      Jeliazkov JR, Sljoka A, Kuroda D, Tsuchimura N, Katoh N, Tsumoto K, Gray JJ
    • Journal Title

      Frontiers in Immunology

      Volume: 9:413 Pages: 1-17

    • DOI

      10.3389/fimmu.2018.00413

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Assessing the Heterogeneity of the Fc-Glycan of a Therapeutic Antibody Using an engineered FcγReceptor IIIa-Immobilized Column2018

    • Author(s)
      Kiyoshi M, Caaveiro JMM, Tada M, Tamura H, Tanaka T, Terao Y, Morante K, Harazono A, Hashii N, Shibata H, Kuroda D, Nagatoishi S, Oe S, Ide T, Tsumoto K, Ishii-Watabe A
    • Journal Title

      Scientific Reports

      Volume: 8:3955 Issue: 1 Pages: 1-11

    • DOI

      10.1038/s41598-018-22199-8

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Structures of the prefusion form of measles virus fusion protein in complex with inhibitors2018

    • Author(s)
      Hashiguchi T, Fukuda Y, Matsuoka R, Kuroda D, Kubota M, Shirogane Y, Watanabe S, Tsumoto K, Kohda D, Plemper RK, Yanagi Y
    • Journal Title

      Proceedings of the National Academy of Sciences of the United States of America

      Volume: 115(10) Issue: 10 Pages: 2496-2501

    • DOI

      10.1073/pnas.1718957115

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 分子シミュレーションと物理化学解析による抗体の熱安定性に関する研究2018

    • Author(s)
      河上恵理, 黒田大祐、中木戸誠、津本浩平
    • Organizer
      日本化学会第98春季年会
    • Related Report
      2017 Research-status Report
  • [Presentation] Structural, physicochemical and computational analysis to reveal the mechanism of recognition of phosphorylated antigen by an antibody2018

    • Author(s)
      KAWADE, Raiji; AKIBA, Hiroki; NAKAKIDO, Makoto; KURODA, Daisuke; MARUYAMA, Toshiaki; OKUMURA, Shigeru; ENTZMINGER, Kevin; CAAVEIRO, Jose; TSUMOTO, Kouhei
    • Organizer
      日本化学会第98春季年会
    • Related Report
      2017 Research-status Report
  • [Presentation] コンピュータ技術を用いたタンパク質のモデリング計算とその応用2018

    • Author(s)
      黒田大祐
    • Organizer
      東京大学工学部化学生命工学講演会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 分子動力学シミュレーションによる抗HIV中和抗体PG16のCDR-H3の変異における構造への影響2018

    • Author(s)
      桐林遼, 近藤寛子, 黒田大祐, 齋藤徹, 香田次郎, 釘宮章光, 中野靖久, 津本浩平, 鷹野優
    • Organizer
      第5回生命分子科学研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] Analysis of the denaturation midpoint to design the VHH with high thermal stability2018

    • Author(s)
      Emina Ikeuchi, Daisuke Kuroda, Makoto Nakakido, Maiko Yoshida, Narutoshi Tsukahara, Akikazu Murakami, Kouhei Tsumoto
    • Organizer
      62nd Annual Meeting of the Biophysical Society
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] アミノ酸電荷交換に関する抗原-抗体相互作用の物理化学解析2017

    • Author(s)
      吉田浩平, 木吉真人、黒田大祐、中木戸誠、長門石曉、曽我真司、白井宏樹、津本浩平
    • Organizer
      第45回 構造活性相関シンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] Physicochemical analysis of antigen-antibody interaction associated with charge exchange of amino acids, Kouhei Yoshida, Masato Kiyoshi2017

    • Author(s)
      Kouhei Yoshida, Masato Kiyoshi, Daisuke Kuroda, Makoto Nakakido, Satoru Nagatoishi, Shinji Soga, Hiroki Shirai, Kouhei Tsumoto
    • Organizer
      The Second International Symposium on Biofunctional Chemistry
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] MD法による抗HIV抗体PG16のCDR-H3の変異における中和能への影響の解析2017

    • Author(s)
      桐林遼, 近藤寛子, 黒田大祐, 齋藤徹, 香田次郎, 釘宮章光, 中野靖久, 鷹野優
    • Organizer
      日本化学会中国四国支部大会鳥取大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Molecular dynamics study of mutation effects on the neutralizing ability in CDR-H3 of an anti-HIV antibody PG162017

    • Author(s)
      Ryo Kiribayashi,Hiroko X. Kondo, Daisuke Kuroda, Toru Saito, Jiro Kohda, Akimitsu Kugimiya, Yasuhisa Nakano, Yu Takano
    • Organizer
      Swedish-Japanese Workshop on Nano-Structure Science by Novel Light Sources
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 抗原配列の硫酸化が抗体との相互作用に与える影響の熱力学的解析2017

    • Author(s)
      宮鍋 一紘、秋葉 宏樹、カアベイロ ホセ、黒田 大祐、中木戸 誠、高松 祐一郎、山下 雄史、津本 浩平
    • Organizer
      第11回バイオ関連化学シンポジウム
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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