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2010 Fiscal Year Annual Research Report

生合成マシナリー研究の総括

Administrative Group

Project AreaBiosynthetic machinery: Deciphering and regulating the system for bioactive metabolite diversification
Project/Area Number 22108001
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Research InstitutionHokkaido University

Principal Investigator

及川 英秋  北海道大学, 大学院・理学研究院, 教授 (00185175)

Co-Investigator(Kenkyū-buntansha) 池田 治生  北里大学, 感染制御科学府, 教授 (90159632)
斉藤 和季  千葉大学, 大学院・薬学研究院, 教授 (00146705)
江口 正  東京工業大学, 大学院・理工学研究科, 教授 (60201365)
五味 勝也  東北大学, 大学院・農学研究科, 教授 (60302197)
金谷 重彦  奈良先端科学技術大学院大学, 情報科学研究科, 教授 (90224584)
Keywordsペプチド合成酵素 / 大腸菌 / 抗腫瘍性物質 / 化学酵素合成 / 生合成
Research Abstract

22年度は、1)天然物の設計図解読;2)異種発現系の構築;3)天然物生合成酵素の機能解析および生産に関して以下の成果が得られた。1)としては、Nocardiaの放線菌ゲノム情報に基づく生合成遺伝子群の同定と実際の物質生産(nocobactinNA)やメタボロームデータに基づくシロイヌナズナの生産するフラボノイド代謝産物の生合成遺伝子の同定などの成果が出た。項目2では、モデル放線菌Str.avermitilisを宿主とする4種の代表的抗生物質の生産に成功し、糸状菌A.oryzaeによる発現系の汎用性を確認すべく、ペニシリンの高生産条件の検討が行われた。項目3では、代表的天然物骨格合成酵素ペプチド系NRPSの新機能が、抗腫瘍性物質saframycinの骨格系で見出され、5環性の複雑な骨格が単一の酵素で作り上げられることが判った。さらに骨格修飾酵素の基質受容性や多機能性を検証すべく、放線菌の代謝産物マロライド系抗生物質FD-891の水酸化酵素gfsFについて機能解析され、単一の酵素がエポキシ化と水酸化を触媒することを明らかにした。また酵素の立体構造に基づいた機能改変として植物由来のベンザルラクトン合成酵素(ポリケタイド合成酵素III型の一種)部位特異的変異を行い、合成基質をスターターとして用いることにより、種々の誘導体の合成に成功した。最後に普遍性の高い経路(メバロン酸経路)への基質供給系に新たな酵素(アセトアセチルCoA合成酵素)が見つかり、その機能解析が終了した。このように、設計図解読や遺伝子発現系、さらにはそれを用いた物質生産に必要な基礎的知見が集積させることができた。

  • Research Products

    (19 results)

All 2011 2010

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (9 results) Book (6 results)

  • [Journal Article] Reconstruction of the Saframycin Core Scaffold Defines Dual Pictet-Spengler Mechanisms2010

    • Author(s)
      K.Koketsu, K.Watanabe, H.Suda, H.Oguri, H.Oikawa
    • Journal Title

      Nat.Chem.Biol.

      Volume: Vol 6, No 6 Pages: 408-410

    • Peer Reviewed
  • [Journal Article] Cloning and Characterization of the Biosynthetic Gene Cluster of 16-Membered Macrolide Antibiotic FD-891 : Involvement of a Dual Functional Cytochrome P450 Monooxygenase Catalyzing Epoxidation and Hydroxylation2010

    • Author(s)
      F.Kudo, A.Motegi, K.Mizoue, T.Eguchi
    • Journal Title

      ChemBioChem

      Volume: Vol.11 Pages: 1574-1582

    • Peer Reviewed
  • [Journal Article] A Structure-Based Mechanism for Benzalacetone Synthase from Rheum palmatum2010

    • Author(s)
      H.Morita, Y.Shimokawa, M.Tanio, R.Kato, H.Noguchi, S.Sugio, T.Kohno, I.Abe
    • Journal Title

      Proc.Natl.Acad.Sci.USA

      Volume: 107 Pages: 669-673

    • Peer Reviewed
  • [Journal Article] Unprecedented acetoacetyl-coenzyme A synthesizing enzyme of the thiolase superfamily involved in the mevalonate pathway2010

    • Author(s)
      Okamura E, Tomita T, Sawa R, Nishiyama M, Kuzuyama T
    • Journal Title

      Proc.Natl.Acad.Sci.USA

      Volume: 107 Pages: 11265-11270

    • Peer Reviewed
  • [Presentation] Marker recycling in Aspergillus oryzae by application of the Cre/loxP system with direct introduction of Cre recombinase2011

    • Author(s)
      Katsuya Gomi
    • Organizer
      26th Fungal Genetics Conference
    • Place of Presentation
      Asilomar Convention Center, (USA)(招待講演)
    • Year and Date
      20110315-20110320
  • [Presentation] Recent progress on the biosynthesis of peptide antitumor antibiotics2010

    • Author(s)
      Hideaki Oikawa
    • Organizer
      Pacifichem 2010 Symposium on Recent Advances in Natural Products as Anticancer Agents
    • Place of Presentation
      Hilton Hawaiian Village Hotel (USA)(招待講演)
    • Year and Date
      20101215-20101220
  • [Presentation] Molecular Analysis of Glycosyltransferase VinC2010

    • Author(s)
      Tadashi Eguchi
    • Organizer
      Pacifichem 2010 Symposium on Biosynthesis of Natural Products
    • Place of Presentation
      Hilton Hawaiian Village Hotel (USA)(招待講演)
    • Year and Date
      20101215-20101220
  • [Presentation] Molecular/cellular regulation of sulfate uptake and assimilation-what we know and what we should know2010

    • Author(s)
      Kazuki Saito
    • Organizer
      8^<th> International Workshop on Plant Sulphur Metabolism
    • Place of Presentation
      Creswick Convention Center, (Australia)(招待講演)
    • Year and Date
      20101122-20101127
  • [Presentation] Plant metabolomics for systems biology and crop biotechnology2010

    • Author(s)
      Kazuki Saito
    • Organizer
      Cold Spring Harbor Asia conference From Plant Biology to Crop Biotechnology
    • Place of Presentation
      Suzhou Convention Center, (China)(招待講演)
    • Year and Date
      20101025-20101029
  • [Presentation] Highly unusual iterative use of NRPS involved in the biosynthesis of saframycin2010

    • Author(s)
      Hideaki Oikawa
    • Organizer
      Directed Biosynthesis II
    • Place of Presentation
      Durham University (UK)(招待講演)
    • Year and Date
      20100915-20100917
  • [Presentation] Genome Minimization of an Industrial Microorganism Streptomyces avermitilis2010

    • Author(s)
      Haruo Ikeda
    • Organizer
      11^<th> International Symposium on the Genetics of Industrial Microorganisms
    • Place of Presentation
      Melbourne Convention Center (Australia)(招待講演)
    • Year and Date
      20100628-20100701
  • [Presentation] Engineered Biosynthesis of Plant Polyketide2010

    • Author(s)
      Ikuro Abe
    • Organizer
      Japan-Finland Biotechnology Symposium 2010
    • Place of Presentation
      The Univ.of Turku, Finland(招待講演)
    • Year and Date
      20100608-20100611
  • [Presentation] Functional characterization of Streptomyces ABBA prenyltransferases in the biosyntheses of naphthoquinone derivatives and novobiocin2010

    • Author(s)
      Tomohisa Kuzuyama
    • Organizer
      60^<th> SIM Annual Meeting
    • Place of Presentation
      San Francisco Convention Center (USA)(招待講演)
    • Year and Date
      2010-08-03
  • [Book] "Chapter 8 Chemical Difence and Toxins of Plant," In Comprehensive Natural Products II : Chemistry and Biology2010

    • Author(s)
      H.Yamane, K.Konno, M.Sabelis, J.Takabayashi, T.Sassa, H.Oikawa(共著)
    • Total Pages
      47
    • Publisher
      Elsevier
  • [Book] "Chapter 8 Diels-Alderases," In Comprehensive Natural Products II : Chemistry and Biology ; Mander2010

    • Author(s)
      Oikawa, H.
    • Total Pages
      38
    • Publisher
      Elsevier
  • [Book] 天然薬物の生合成工学創薬科学の魅力:東京大学大学院薬学系研究科からの発信2010

    • Author(s)
      阿部郁朗
    • Total Pages
      16
    • Publisher
      廣川書店
  • [Book] "Plant Polyketide Synthase," In Comprehensive Natural Products II : Chemistry and Biology, Vol.12010

    • Author(s)
      H.Morita, I.Abe, H.Noguchi(共著)
    • Total Pages
      55
    • Publisher
      Elsevier
  • [Book] "Chapter 12 Mevalonate Pathway in Archaea and Bacteria." In Comprehensive Natural Products II. Chemistry & Biology2010

    • Author(s)
      Kuzuyama T., H.Hemmi, S.Takahashi(共著)
    • Total Pages
      24
    • Publisher
      Elsevier
  • [Book] Production of Pharmaceuticals by Plant Tissue Cultures. In "Comprehensive Natural Products II Chemistry and Biology"2010

    • Author(s)
      Toshiya Muranaka, Kazuki Saito(共著)
    • Total Pages
      14
    • Publisher
      Elsevier

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Published: 2013-06-26  

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