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Development of gene expression-metabolic model of Escherichia coli

Research Project

Project/Area Number 22860056
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Biofunction/Bioprocess
Research InstitutionKeio University

Principal Investigator

TOYA Yoshihiro  慶應義塾大学, 政策・メディア研究科, 特任助教 (70582162)

Project Period (FY) 2010 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥3,146,000 (Direct Cost: ¥2,420,000、Indirect Cost: ¥726,000)
Fiscal Year 2011: ¥1,508,000 (Direct Cost: ¥1,160,000、Indirect Cost: ¥348,000)
Fiscal Year 2010: ¥1,638,000 (Direct Cost: ¥1,260,000、Indirect Cost: ¥378,000)
Keywords大腸菌 / 中心炭素代謝経路 / 動的シミュレーション / 代謝フラックス解析 / トランスクリプトーム / 硝酸代謝 / メタボローム / arcA遺伝子欠損株 / 代謝工学 / 細胞シミュレーション / 代謝フラックス / カタボライト抑制 / 硝酸呼吸
Research Abstract

Cellular metabolism is regulated at transcription, translation, and enzymatic reactions. It is of interest how the metabolism is controlled at the multi-levels system. We measured transcriptome, metabolome, and metabolic fluxes for wild-type E. coli and the. arcA mutant under various conditions in continuous culture, and revealed the regulatory mechanism in each condition. Furthermore, the measured multi-omics data were integrated using the dynamic model and the model parameters were tuned. The arcA gene knockout condition was simulated based on the measured gene expressions. The simulated reaction rates were well matched with the^<13> C flux values. In this study, we demonstrated that the dynamic model has a potential as a platform for the integration of different levels omics data in order to reveal the intracellular regulatory mechanisms.

Report

(3 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • Research Products

    (12 results)

All 2012 2011 2010

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (8 results)

  • [Journal Article] Metabolic regulation analysis of wild-type and arcA mutant Escherichia coli under nitrate conditions using different levels of omics data2012

    • Author(s)
      Yoshihiro Toya, Kenji Nakahigashi, Masaru Tomita, Kazuyuki Shimizu
    • Journal Title

      Molecular BioSystems

      Volume: 8 Issue: 10 Pages: 2593-2593

    • DOI

      10.1039/c2mb25069a

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Metabolic flux analysis and visualization2011

    • Author(s)
      Yoshihiro Toya, Nobuaki Kono, Kazuharu Arakawa, Masaru Tomita
    • Journal Title

      Journal of Proteome Research

      Volume: Vol.10, No.8 Pages: 3313-3323

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Metabolic flux analysis and visualization2011

    • Author(s)
      Yoshihiro Toya
    • Journal Title

      Journal of Proteome Research

      Volume: 10 Issue: 8 Pages: 3313-3323

    • DOI

      10.1021/pr2002885

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 13C-metabolic flux analysis for batch culture of Escherichia coli and its Pyk and Pgi gene knockout mutants based on mass isotopomer distribution of intracellular metabolites.2010

    • Author(s)
      戸谷吉博
    • Journal Title

      Biotechnology Progress

      Volume: 26 Pages: 975-992

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] ^<13>C代謝フラックス解析とマルチオミックスデータの統合に基づく大腸菌の硝酸呼吸代謝の解明2011

    • Author(s)
      戸谷吉博
    • Organizer
      第6回メタボロームシンポジウム
    • Place of Presentation
      大阪大学コンベンションセンター(大阪府)
    • Year and Date
      2011-10-14
    • Related Report
      2011 Annual Research Report
  • [Presentation] ^<13>C-Metabolic flux analysis of Escherichia coli under nitrate respiration with integration of different levels of omics data2011

    • Author(s)
      戸谷吉博
    • Organizer
      The Korean Society for Microbiology and Biotechnology
    • Place of Presentation
      Hotel Hyundai Gyeongiu(韓国)
    • Year and Date
      2011-06-22
    • Related Report
      2011 Annual Research Report
  • [Presentation] 13C-Metabolic flux analysis of Escherichia coli under nitrate respiration with integration of different levels of omics data2011

    • Author(s)
      Yoshihiro Toya, Kenji Nakahigashi, Masaru Tomita, Kazuyuki Shimizu
    • Organizer
      The Korean Society for Microbiology and Biotechnology
    • Place of Presentation
      Korea
    • Related Report
      2011 Final Research Report
  • [Presentation] 13C同位体標識メタボロミクスデータを用いた酵素キネティクス最適化手法の開発2011

    • Author(s)
      佐伯憲和, 戸谷吉博, 西野泰子, 冨田勝
    • Organizer
      第34回日本分子生物学会年会
    • Place of Presentation
      横浜
    • Related Report
      2011 Final Research Report
  • [Presentation] 13C-Metabolic Flux Analysis Based on Mass Isotopomers of Intracellular Metabolites and Integration of Different Levels of Information for Metabolic Regulation Analysis2010

    • Author(s)
      戸谷吉博
    • Organizer
      International Conference on Systems Biology 2010
    • Place of Presentation
      Edingburgh, UK
    • Year and Date
      2010-10-11
    • Related Report
      2010 Annual Research Report
  • [Presentation] ^<13> C代謝フラックス解析とマルチオミックスデータの統合に基づく大腸菌の硝酸呼吸代謝の解明2010

    • Author(s)
      戸谷吉博, 中東憲治, 冨田勝, 清水和幸
    • Organizer
      第6回メタボロームシンポジウム
    • Place of Presentation
      大阪
    • Related Report
      2011 Final Research Report
  • [Presentation] ^<13> C-metabolic flux analysis based on mass isotopomers of intracellular metabolites and integration of different levels of information for metabolic regulation analysis2010

    • Author(s)
      Yoshihiro Toya, Nobuyoshi Ishii, Kenji Nakahigashi, Takashi Hirasawa, Tomoyoshi Soga, Masaru Tomita, Kazuyuki Shimizu
    • Organizer
      11th International Conference on Systems Biology
    • Place of Presentation
      Scotland, UK
    • Related Report
      2011 Final Research Report
  • [Presentation] Kinetic Parameter Optimization of Human Erythrocyte Model Using Metabolomics approach based on 13C-labeling2010

    • Author(s)
      Norikazu Saiki, Yoshihiro Toya, Taiko Nishino, Masaru Tomita
    • Organizer
      11th International Conference on Systems Biology
    • Place of Presentation
      Scotland, UK
    • Related Report
      2011 Final Research Report

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Published: 2010-08-27   Modified: 2016-04-21  

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