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Isolation of high D-amino acid-producing bacteria by an enzymatic screening method and analysis of the high production mechanism

Research Project

Project/Area Number 19K05765
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38020:Applied microbiology-related
Research InstitutionNagaoka University of Technology

Principal Investigator

Takahashi Shouji  長岡技術科学大学, 工学研究科, 教授 (90324011)

Co-Investigator(Kenkyū-buntansha) 柴田 公彦  長岡技術科学大学, 工学研究科, 准教授 (10369928)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
KeywordsD-アスパラギン酸 / 乳酸菌 / 高分泌生産 / 酵素学的スクリーニング / Lactobacillus curvatus / D-アスパラギンオキシダーゼ / アスパラギン酸ラセマーゼ / ゲノム配列 / 高分泌生産機構 / アスパラギナーゼ / アスパラギン酸アミノトランスフェラーゼ / 高発現 / トランスポゾン / Lactobacillus sp. / 高生産機構 / D-アスパラギン酸オキシダーゼ / 酵素スクリーニング / 発酵 / D-アミノ酸
Outline of Research at the Start

(1)D-Asp高特異性DDOを用いてハイスループットなD-Asp高分泌生産乳酸菌のスクリーニング法を開発する。
(2)開発した酵素スクリーニング法を用いてD-Asp高分泌生産乳酸菌を単離・同定し,どのような乳酸菌が細胞外に多量のD-Aspを分泌するか明らかにする。
(3)D-Asp高分泌生産乳酸菌における浸透圧と細胞内D-Asp濃度との関係および機械受容チャネル(MscS)の同定とそのD-Asp分泌との関係を明らかにする。

Outline of Final Research Achievements

We have developed an enzymatic screening method for D-aspartate (D-Asp)-producing lactic acid bacteria (LAB) using a yeast D-aspartate oxidase with a high substrate specificity toward D-Asp. We have isolated a high D-Asp-producing LAB strain, Lactobacillus curvatus strain WDN19, using the screening method. The high D-Asp-producing ability of strain WDN19 was attributed to the high aspartate racemase (RacD) activity and the high L-Asp providing ability, a precursor of D-Asp biosynthesis by RacD, due to the high asparaginase activity and the disruption of an aspartate aminotransferase gene and the insertion of an aspartate transporter gene by a transposon insertion.

Academic Significance and Societal Importance of the Research Achievements

D-アスパラギン酸(D-Asp)は抗生物質原料として有用であり,またヒトに対して有益な健康効果を示すことから,D-Aspの多様な応用的利用が期待されている.したがって,D-Aspの生産技術の開発が重要となっており,本研究は微生物を用いたD-Aspの工業的発酵生産法開発の基盤となる研究である.また,乳酸菌はヒトに対して多様な健康効果を示すことから,新規な機能性食品の開発においても意義のある研究である.近年,多様な種類のD-アミノ酸が微生物により分泌生産されることが明らかにされているが,その生理機能は明らかにされていない.本研究は,微生物界におけるD-アミノ酸の機能解明にも貢献すると期待される.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (15 results)

All 2022 2021 2020 2019 Other

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 1 results) Presentation (5 results) (of which Int'l Joint Research: 4 results) Remarks (2 results)

  • [Journal Article] Mechanism of high D-aspartate production in the lactic acid bacterium Latilactobacillus sp. strain WDN192022

    • Author(s)
      Kengo Kajitani, Takumi Ishikawa, Tomohiro Kobayashi, Miharu Asato, Kimihiko Shibata, Tomoaki Kouya, Shouji Takahashi
    • Journal Title

      Applied Microbial and Cell Physiology

      Volume: 106 Issue: 7 Pages: 2651-2663

    • DOI

      10.1007/s00253-022-11870-w

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of an enzymatic screening method for D-aspartate-producing lactic acid bacteria2021

    • Author(s)
      Kengo Kajitani, Takumi Ishikawa, Kimihiko Shibata, Tomoaki Kouya, Yoshio Kera, Shouji Takahashi
    • Journal Title

      Enzyme and Microbial Technology

      Volume: 149 Pages: 109835-109835

    • DOI

      10.1016/j.enzmictec.2021.109835

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Complete genome sequence of Latilactobacillus sp. strain WDN19, a high-D-aspartate-producing lactic acid bacterium isolated from a Japanese pickle2021

    • Author(s)
      Kengo Kajitani, Shouji Takahashi
    • Journal Title

      Microbiology Resource Announcements

      Volume: 10 Issue: 34

    • DOI

      10.1128/mra.00568-21

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] D-Aspartate oxidase: distribution, functions, properties, and biotechnological applications2020

    • Author(s)
      Takahashi Shouji
    • Journal Title

      Applied Microbiology and Biotechnology

      Volume: 104 Issue: 7 Pages: 2883-2895

    • DOI

      10.1007/s00253-020-10439-9

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Liquid chromatography-electrospray ionization-tandem mass spectrometric assay for d-aspartate N-methyltransferase activity in ark shells2019

    • Author(s)
      Shibata Kimihiko、Hagiya Saho、Okawara Rena、Abe Katsumasa、Takahashi Shouji、Kera Yoshio
    • Journal Title

      Bioscience, Biotechnology, and Biochemistry

      Volume: 84 Issue: 3 Pages: 500-506

    • DOI

      10.1080/09168451.2019.1689094

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Aspartate racemase and D-aspartate in starfish; possible involvement in testicular maturation2019

    • Author(s)
      Shibata Kimihiko、Sugaya Noriko、Kuboki Yuko、Matsuda Hiroko、Abe Katsumasa、Takahashi Shouji、Kera Yoshio
    • Journal Title

      Bioscience, Biotechnology, and Biochemistry

      Volume: 84 Issue: 1 Pages: 95-102

    • DOI

      10.1080/09168451.2019.1660614

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] A novel thermostable d-amino acid oxidase of the thermophilic fungus Rasamsonia emersonii strain YA2019

    • Author(s)
      Shimekake Yuya、Furuichi Takehiro、Abe Katsumasa、Kera Yoshio、Takahashi Shouji
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 11948-11948

    • DOI

      10.1038/s41598-019-48480-y

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Characterization and improvement of substrate-binding affinity of D-aspartate oxidase of the thermophilic fungus Thermomyces dupontii2019

    • Author(s)
      Takahashi S, Osugi K, Shimekake Y, Shinbo A, Abe K, Kera Y.
    • Journal Title

      Applied microbiology and biotechnology

      Volume: 103 Issue: 10 Pages: 4053-4064

    • DOI

      10.1007/s00253-019-09787-y

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] D-アスパラギン酸高生産乳酸菌の単離と高生産機構の解明2021

    • Author(s)
      梶谷 賢吾、石川 拓実、小林 智浩、安里 光波留、高屋 朋彰、柴田 公彦 、 高橋 祥司
    • Organizer
      日本乳酸菌学会 2021 年度大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Isolation of a highly D-aspartate-producing lactic acid bacterium by enzymatic screening method2019

    • Author(s)
      Kajitani K, Ishikawa T, Shibata K, Kouya T, Abe K, Kera Y, Takahashi S.
    • Organizer
      The 4th International Conference of D-Amino Acid Research (IDAR2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Structure insights into a themostable fungal D-amino acid oxidase2019

    • Author(s)
      Shimekake Y, Furuichi T, Goto M, Abe K, Kera Y, Takahahsi S.
    • Organizer
      The 4th International Conference of D-Amino Acid Research (IDAR2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] A structural determinant of the substrate specificity of thermophilic fungal D-amino acid oxidases2019

    • Author(s)
      Shimekake Y, Furuichi T, Suzuki H, Abe K, Goto M, Kera Y, Takahahsi S.
    • Organizer
      The 4th International Conference of D-Amino Acid Research (IDAR2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Identification of amino acid residues involved in the thermal stability of a thermostable fungal D-amino acid oxidase2019

    • Author(s)
      Furuichi T, Shimekake Y, Goto M, Abe K, Kera Y, Takahahsi S.
    • Organizer
      The 4th International Conference of D-Amino Acid Research (IDAR2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Remarks] 長岡技術科学大学 環境生物化学研究室

    • URL

      https://envbiochem.amebaownd.com/

    • Related Report
      2021 Annual Research Report
  • [Remarks] 長岡技術科学大学 環境生物化学研究室HP

    • URL

      https://envbiochem.amebaownd.com/

    • Related Report
      2020 Research-status Report 2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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