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Creation of Excellent Mutant Enzymes and Synthetic Application

Research Project

Project/Area Number 20550152
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Chemistry related to living body
Research InstitutionOkayama University

Principal Investigator

EMA Tadashi  Okayama University, 大学院・自然科学研究科, 准教授 (20263626)

Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords酵素 / 変異 / 遷移状態 / エナンチオ選択性 / 光学活性化合物 / 不斉合成 / 酵素反応 / 進化 / 合成化学 / 光学活性アルコール / 動的速度論的光学分割 / フッ素
Research Abstract

The catalytic function of versatile biocatalysts such as lipase and carbonyl reductase were improved by rational design or random mutagenesis, and useful optically active compounds were synthesized. (1) Catalytic activity and enantioselectivity of lipase toward poor substrates have been dramatically improved by rational design. (2) The bioreduction ofα,α-difluorinated β-keto ester with recombinant E. coli gave the corresponding optically active alcohol, which was converted into α,α-difluorinated β-amino acid derivative.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (29 results)

All 2010 2009 2008 Other

All Journal Article (4 results) (of which Peer Reviewed: 3 results) Presentation (21 results) Remarks (4 results)

  • [Journal Article] Chemoenzymatic Synthesis of Optically Active Alcohol and β-Amino-Acid Derivative Containing the Difluoromethylene Group.2010

    • Author(s)
      Ema, T.; Kadoya, T.; Akihara, K.; Sakai, T.
    • Journal Title

      J.Mol.Catal.B:Enz. 66(1-2)

      Pages: 198-202

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Rational Creation of Mutant Enzyme Showing Remarkable Enhancement of Catalytic Activity and Enantioselectivity toward Poor Substrates.2010

    • Author(s)
      Ema, T.; Kamata, S.; Takeda, M.; Nakano, Y.; Sakai, T.
    • Journal Title

      Chem.Commun. 46(30)

      Pages: 5440-5442

    • Related Report
      2010 Final Research Report
  • [Journal Article] Chemoenzymatic Synthesis of Optically Active Alcohol and β-Amino-Acid Derivative Containing the Difluoromethylene Group2010

    • Author(s)
      Tadashi Ema
    • Journal Title

      J.Mol.Catal.B : Enz.

      Volume: 66(1-2) Pages: 198-202

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Rational Creation of Mutant Enzyme Showing Remarkable Enhancement of Catalytic Activity and Enantioselectivity toward Poor Substrates2010

    • Author(s)
      Tadashi Ema
    • Journal Title

      Chemical Communications 46(印刷中)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] Rational Creation of Mutant Enzyme Showing Remarkable Enhancement of Catalytic Activity and Enantioselectivity toward Poor Substrates2010

    • Author(s)
      依馬正, 鎌田修輔, 武田匡弘, 中野靖子, 是永敏伸, 酒井貴志
    • Organizer
      2010 International Chemical Congress of Pacific Basin Societies (Pacifichem 2010)
    • Place of Presentation
      Hawaii, USA
    • Year and Date
      2010-12-19
    • Related Report
      2010 Final Research Report
  • [Presentation] Rational Creation of Mutant Enzyme Showing Remarkable Enhancement of Catalytic Activity and Enantioselectivity toward Poor Substrates2010

    • Author(s)
      依馬正
    • Organizer
      2010 International Chemical Congress of Pacific Basin Societies (Pacifichem 2010)
    • Place of Presentation
      ハワイ
    • Year and Date
      2010-12-19
    • Related Report
      2010 Annual Research Report
  • [Presentation] 酵素の合理的改変:遷移状態でCH/π相互作用を働かせる2010

    • Author(s)
      依馬正, 中野靖子, 鎌田修輔, 是永敏伸, 酒井貴志
    • Organizer
      第4回バイオ関連化学シンポジウム
    • Place of Presentation
      豊中
    • Year and Date
      2010-09-26
    • Related Report
      2010 Annual Research Report 2010 Final Research Report
  • [Presentation] 酵素の合理的改変:遷移状態でCH/π相互作用を働かせる2010

    • Author(s)
      依馬正, 中野靖子, 鎌田修輔, 武田匡弘, 是永敏伸, 酒井貴志
    • Organizer
      第14回生体触媒化学シンポジウムin静岡
    • Place of Presentation
      静岡
    • Year and Date
      2010-09-23
    • Related Report
      2010 Annual Research Report 2010 Final Research Report
  • [Presentation] 多重変異導入によるリパーゼの触媒活性とエナンチオ選択性の合理的向上2010

    • Author(s)
      依馬正, 中野靖子, 鎌田修輔, 是永敏伸, 酒井貴志
    • Organizer
      日本化学会第90春季年会
    • Place of Presentation
      大阪
    • Year and Date
      2010-03-28
    • Related Report
      2010 Final Research Report 2009 Annual Research Report
  • [Presentation] 酵素の合理的進化と機能強化2010

    • Author(s)
      依馬正
    • Organizer
      日本化学会第90春季年会
    • Place of Presentation
      大阪
    • Year and Date
      2010-03-26
    • Related Report
      2010 Final Research Report 2009 Annual Research Report
  • [Presentation] Synthesis of Chiral Intermediates with Biocatalysts and Organocatalysts2010

    • Author(s)
      依馬正
    • Organizer
      The 3rd International Symposium for Future Technology Creating Better Human Health and Society : Molecular Targets for the Development of Therapeutic Agents against Cancer and Infectious Diseases in vitro, in vivo and in silico
    • Place of Presentation
      Okayama
    • Year and Date
      2010-02-03
    • Related Report
      2010 Final Research Report
  • [Presentation] Synthesis of Chiral Intermediates with Biocatalysts and Organocatalysts2010

    • Author(s)
      依馬正
    • Organizer
      The 3rd International Symposium for Future Technology Creating Better Human Health and Society : Molecular Targets for the Development of Therapeutic Agents against Cancer and Infectious Diseases in vitro, in vivo and in silico
    • Place of Presentation
      岡山
    • Year and Date
      2010-02-03
    • Related Report
      2009 Annual Research Report
  • [Presentation] 変異導入による酵素の触媒活性とエナンチオ選択性の合理的向上2009

    • Author(s)
      依馬正, 鎌田修輔, 武田匡弘, 中野靖子, 是永敏伸, 酒井貴志
    • Organizer
      第13回生体触媒化学シンポジウム
    • Place of Presentation
      香川
    • Year and Date
      2009-12-03
    • Related Report
      2010 Final Research Report 2009 Annual Research Report
  • [Presentation] gem-ジフルオロ化ケトンのバイオ不斉還元2009

    • Author(s)
      依馬正, 穐原久美子, 門屋太郎, 是永敏伸, 酒井貴志
    • Organizer
      日本化学会第89春季年会
    • Place of Presentation
      船橋
    • Year and Date
      2009-03-29
    • Related Report
      2010 Final Research Report
  • [Presentation] 二重変異導入によるリパーゼのエナンチオ選択性の合理的向上2009

    • Author(s)
      依馬正, 鎌田修輔, 武田匡弘, 是永敏伸, 酒井貴志
    • Organizer
      日本化学会第89春季年会
    • Place of Presentation
      船橋
    • Year and Date
      2009-03-29
    • Related Report
      2010 Final Research Report
  • [Presentation] 二重変異導入によるリパーゼのエナンチオ選択性の合理的向上2009

    • Author(s)
      依馬正, 鎌田修輔, 武田匡弘, 是永敏伸, 酒井貴志
    • Organizer
      日本化学会第89春季年会
    • Place of Presentation
      日本大学(船橋)
    • Year and Date
      2009-03-29
    • Related Report
      2008 Annual Research Report
  • [Presentation] gem-ジフルオロ化ケトンのバイオ不斉還元2009

    • Author(s)
      依馬正, 穐原久美子, 門屋太郎, 是永敏伸, 酒井貴志
    • Organizer
      日本化学会第89春季年会
    • Place of Presentation
      日本大学(船橋)
    • Year and Date
      2009-03-29
    • Related Report
      2008 Annual Research Report
  • [Presentation] カルボニル還元酵素を用いた有用キラル化合物群の不斉合成2008

    • Author(s)
      依馬正, 井手彩矢佳, 門屋太郎, 穐原久美子, 是永敏伸, 酒井貴志
    • Organizer
      第12回生体触媒化学シンポジウム
    • Place of Presentation
      習志野
    • Year and Date
      2008-12-04
    • Related Report
      2010 Final Research Report
  • [Presentation] カルボニル還元酵素を用いたジフルオロメチレン基を有する光学活性アルコールの合成2008

    • Author(s)
      依馬正, 門屋太郎, 穐原久美子, 是永敏伸, 酒井貴志
    • Organizer
      第12回生体触媒化学シンポジウム
    • Place of Presentation
      習志野
    • Year and Date
      2008-12-04
    • Related Report
      2010 Final Research Report
  • [Presentation] カルボニル還元酵素を用いた有用キラル化合物群の不斉合成2008

    • Author(s)
      依馬正, 井手彩矢佳, 門屋太郎, 穐原久美子, 是永敏伸, 酒井貴志
    • Organizer
      第12回生体触媒化学シンポジウム
    • Place of Presentation
      東邦大学(習志野)
    • Year and Date
      2008-12-04
    • Related Report
      2008 Annual Research Report
  • [Presentation] カルボニル還元酵素を用いたジフルオロメチレン基を有する光学活性アルコールの合成2008

    • Author(s)
      依馬正, 門屋太郎, 穐原久美子, 是永敏伸, 酒井貴志
    • Organizer
      第12回生体触媒化学シンポジウム
    • Place of Presentation
      東邦大学(習志野)
    • Year and Date
      2008-12-04
    • Related Report
      2008 Annual Research Report
  • [Presentation] 点変異導入による酵素の触媒活性とエナンチオ選択性の制御2008

    • Author(s)
      依馬正, 鎌田修輔, 武田匡弘, 是永敏伸, 酒井貴志
    • Organizer
      第3回バイオ関連化学合同シンポジウム
    • Place of Presentation
      横浜
    • Year and Date
      2008-09-19
    • Related Report
      2010 Final Research Report
  • [Presentation] 遺伝子組換え大腸菌を用いた医薬中間体の不斉合成に関するプロセス研究2008

    • Author(s)
      依馬正, 井手彩矢佳, 沖田修康, 是永敏伸, 酒井貴志
    • Organizer
      第3回バイオ関連化学合同シンポジウム
    • Place of Presentation
      横浜
    • Year and Date
      2008-09-19
    • Related Report
      2010 Final Research Report
  • [Presentation] 点変異導入による酵素の触媒活性とエナンチオ選択性の制御2008

    • Author(s)
      依馬正, 鎌田修輔, 武田匡弘, 是永敏伸, 酒井貴志
    • Organizer
      第3回バイオ関連化学合同シンポジウム
    • Place of Presentation
      東京工業大学(横浜)
    • Year and Date
      2008-09-19
    • Related Report
      2008 Annual Research Report
  • [Presentation] 遺伝子組換え大腸菌を用いた医薬中間体の不斉合成に関するプロセス研究2008

    • Author(s)
      依馬正, 井手彩矢佳, 沖田修康, 是永敏伸, 酒井貴志
    • Organizer
      第3回バイオ関連化学合同シンポジウム
    • Place of Presentation
      東京工業大学(横浜)
    • Year and Date
      2008-09-19
    • Related Report
      2008 Annual Research Report
  • [Remarks] ホームページ等

    • URL

      http://achem.okayama-u.ac.jp/soc/index.html

    • Related Report
      2010 Final Research Report
  • [Remarks]

    • URL

      http://achem.okayama-u.ac.jp/soc/index.html

    • Related Report
      2010 Annual Research Report
  • [Remarks]

    • URL

      http://achem.okayama-u.ac.jp/soc/index.html

    • Related Report
      2009 Annual Research Report
  • [Remarks]

    • URL

      http://achem.okayama-u.ac.jp/soc/index.html

    • Related Report
      2008 Annual Research Report

URL: 

Published: 2008-04-01   Modified: 2016-04-21  

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