• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Biosynthetic study of oxaleimides

Research Project

Project/Area Number 17H07002
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Bioorganic chemistry
Research InstitutionUniversity of Shizuoka

Principal Investigator

Sato Michio  静岡県立大学, 薬学部, 講師 (10629695)

Project Period (FY) 2017-08-25 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords生合成 / ポリケタイド / 非リボソームペプチド / シトクロームP450 / 二次代謝産物 / X線結晶構造解析 / 酵素 / 抗生物質 / 微生物
Outline of Final Research Achievements

We identified the enzymes which are responsible for two key reactions in the biosynthesis of oxaleimides through gene targeting and in vitro reaction. One of the key reactions is the decalin ring modification to indane ring, and another is a rearrangement of the olefin from the amino acid building block to yield the maleimide scaffold compound. We propose oxidation of the decalin ring at C3, followed by hydroxylation at C2 to give a hydroxy ketone compound, which can undergo a semipinacol rearrangement to afford an indane ring compound. We characterized the enzyme PoxD, which is a member of cytochrome P450 enzymes, can catalyze the oxidation of the olefin at C3 in the decalin ring, and PoxK can hydroxylate the C2 carbon. Furthermore, we identified PoxN is involved in the rearrangement of the olefin from the amino acid. We established the purification method of fungal P450 enzymes, which can be a powerful tool to analyze the complex and intriguing reaction catalyzed by P450 enzymes.

Academic Significance and Societal Importance of the Research Achievements

糸状菌Penicillium oxalicumが生産するoxaleimide類の骨格構築機構の解明を進めるうえで、P450およびそのパートナータンパク質であるNADPH還元酵素の精製法を確立した。両酵素とも膜貫通型のタンパク質であり、微生物の二次代謝に関わるP450を含む膜タンパク質には興味深い反応を触媒するものが多いが、精製が壁となり分子レベルでの解析が困難であった。本研究で用いた精製法は今後の膜タンパク質の研究の強力なツールとなると言える。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • Research Products

    (12 results)

All 2019 2018 2017

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

  • [Journal Article] Identifying the Biosynthetic Gene Cluster for Triacsins with an N-Hydroxytriazene Moiety.2019

    • Author(s)
      Twigg FF, Cai W, Huang W, Liu J, Sato M, Perez TJ, Geng J, Dror MJ, Montanez I, Tong TL, Lee H, Zhang W.
    • Journal Title

      ChemBioChem

      Volume: 20 Issue: 9 Pages: 1145-1149

    • DOI

      10.1002/cbic.201800762

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Biosynthesis of lagopodins in mushroom involves a complex network of oxidation reactions2019

    • Author(s)
      Masuya Takahiro、Tsunematsu Yuta、Hirayama Yuichiro、Sato Michio、Noguchi Hiroshi、Nakazawa Takehito、Watanabe Kenji
    • Journal Title

      Organic & Biomolecular Chemistry

      Volume: 17 Issue: 2 Pages: 234-239

    • DOI

      10.1039/c8ob02814a

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] 共生型子嚢菌Pyrenula sp.由来pyrenulic acid類の生合成研究2019

    • Author(s)
      佐藤道大、籠浦倫美、恒松雄太、竹仲由希子、棚橋孝雄、渡辺賢二
    • Organizer
      日本薬学会第139年会(千葉)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 共生型子嚢菌Pyrenula sp.由来pyrenulic acid類の生合成研究2019

    • Author(s)
      佐藤道大、籠浦倫美、恒松雄太、竹仲由希子、棚橋孝雄、渡辺賢二
    • Organizer
      日本農芸化学会2019年度大会(東京)
    • Related Report
      2018 Annual Research Report
  • [Presentation] Expanding the Scope of Biosynthetic Cooperativity Between Polyketide Megasynthases Through Genome Mining2018

    • Author(s)
      Michio Sato, Yi Tang, Kenji Watanabe
    • Organizer
      30th International Symposium on the Chemistry of Natural Products and the 10th International Congress on Biodiversity (ISCNP30 & ICOB10)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 大腸がんリスク因子物質コリバクチンの生産菌検出に関する化学的研究2018

    • Author(s)
      平山裕一郎、松崎信生、玉舟亮太、恒松雄太、佐藤道大、吉川悠、三好規之、岩下雄二、椙村春彦、若林敬二、武藤倫弘、石川秀樹、渡辺賢二
    • Organizer
      がん予防学術大会2018高松
    • Related Report
      2018 Annual Research Report
  • [Presentation] 立体選択的反応機構の解明を目指したDiels-Alder反応を触媒するCghAの基質合成研究2018

    • Author(s)
      成田一仁、岸本真治、横山葵、恒松 雄太、佐藤 道大、渡辺賢二
    • Organizer
      日本薬学会東海支部合同学術大会2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] 酵素-生成物複合体を用いたCghAの立体選択的反応機構の解明2018

    • Author(s)
      横山葵、佐藤 道大、前田 直哉、恒松 雄太、原 幸大、橋本 博、渡辺 賢二
    • Organizer
      日本薬学会東海支部合同学術大会2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] 共生型子嚢菌Pyrenula sp.に由来するPyrenulic acid類の生合成遺伝子の同定2018

    • Author(s)
      籠浦倫美、佐藤道大、恒松雄太、竹仲由希子、棚橋孝雄、渡辺賢二
    • Organizer
      日本生薬学会第65回年会(広島)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 糸状菌由来azaphilone系天然物cochliodone Aの生合成研究2018

    • Author(s)
      赤岡史人、高西潤、佐藤道大、三野孝、渡辺賢二
    • Organizer
      日本生薬学会第65回年会(広島)
    • Related Report
      2018 Annual Research Report
  • [Presentation] BIOSYNTHETIC COOPERATIVITY BETWEEN FUNGAL POLYKETIDE MEGASYNTHASES REVEALED THROUGH GENOME MINING2017

    • Author(s)
      Michio Sato, Kenji Watanabe, Yi Tang
    • Organizer
      IUMS2017(国際微生物学連合2017会議)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 糸状菌ポリケタイド合成酵素によるイミド含有天然物の生合成2017

    • Author(s)
      佐藤道大, Jacob E. Dander, Neil K. Garg, Yi Tang, 渡辺賢二
    • Organizer
      第59回 天然有機化合物討論会
    • Related Report
      2017 Annual Research Report

URL: 

Published: 2017-08-25   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi