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Biochemistry of aerobic ammonia-oxidizing archaea

Research Project

Project/Area Number 19K05805
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 InstitutionHokkaido University (2020-2021)
Nagaoka National College of Technology (2019)

Principal Investigator

oshiki mamoru  北海道大学, 工学研究院, 准教授 (90540865)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
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: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsアンモニア酸化古細菌 / AOA / 硝化 / 触媒分子 / タンパク質工学 / Nitrososphaera / 単離・精製 / 代謝メカニズム
Outline of Research at the Start

好気性アンモニア酸化古細菌(AOA)は地球規模での窒素循環に関わる微生物でありながら、どのようにアンモニアを酸化するのか明らかになっていない。本研究では、AOAから触媒分子(酵素および補酵素)を分離し、触媒機能を解明することによってアンモニア酸化反応のメカニズムを解明する。本研究では、1) AOAの大量培養、2) 触媒分子の分離条件検討、分離・同定、3) 触媒分子の機能・物性に基づく反応メカニズムの解明を試みる。AOAはアンモニアを酸化することで無機物からエネルギーを回収する新規な触媒分子と機構を有しており、これらを解明することは高い学術新規性および新規触媒としての工学的応用が期待できる。

Outline of Final Research Achievements

The present study aimed to examine the biochemistry of aerobic ammonium oxidizing archaea, Nitrososphaera viennensis. First, mass cultivation of Nitrososphaera viennensis using a membrane bioreactor has been developed, and the biomass cultivated in the reactor was subjected to protein isolation by liquid chromatography. Some enzymes were successfully isolated from N. viennensis culture and subsequently identified by MALDI-TOF/MS analysis. We also developed a heterologous protein expression system for N. viennensis protein, whereas a functional expression of those was quite challenging. Our achievements should advance the understanding of biochemistry of Nitrososphaera viennensis, while more efforts are definitely required to underpin the biochemistry of aerobic ammonia oxidation reaction.

Academic Significance and Societal Importance of the Research Achievements

好気性アンモニア酸化反応は地球上の窒素循環を担う大動脈であり、本反応のメカニズムを分子レベルで理解することは学術的にきわめて重要である。本研究では培養が困難であり、限られた知見しか得られていない好気性アンモニア酸化古細菌Nitrososphaera viennensisについて、触媒酵素を分離し、酵素レベルで反応を理解することを目指した。本研究では本細菌を高密度で大量培養する新規な培養技術の開発、タンパク質分離条件の検討、大腸菌を宿主としたタンパク質発現条件の検討を行っており、これらの成果は今後の生化学研究へのマイルストーンとなる成果といえる。

Report

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

    (25 results)

All 2022 2021 2020

All Journal Article (10 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 10 results,  Open Access: 3 results) Presentation (15 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Full-scale application of a down-flow hanging sponge reactor combined with a primary sedimentation basin for domestic sewage treatment2022

    • Author(s)
      Okubo Tsutomu、Tagawa Tadashi、Takahashi Masanobu、Iguchi Akinori、Oshiki Mamoru、Araki Nobuo、Kubota Kengo、Tawfik Ahmed、Uemura Shigeki、Harada Hideki
    • Journal Title

      Bioprocess and Biosystems Engineering

      Volume: 45 Issue: 4 Pages: 701-709

    • DOI

      10.1007/s00449-022-02689-w

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Endpoint Recombinase Polymerase Amplification (RPA) Assay for Enumeration of Thiocyanate-degrading Bacteria2022

    • Author(s)
      Oshiki Mamoru、Fukushima Toshikazu、Kawano Shuichi、Nakagawa Junichi
    • Journal Title

      Microbes and Environments

      Volume: 37 Issue: 1 Pages: n/a

    • DOI

      10.1264/jsme2.ME21073

    • ISSN
      1342-6311, 1347-4405
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Determination of 15N/14N of Ammonium, Nitrite, Nitrate, Hydroxylamine, and Hydrazine Using Colorimetric Reagents and Matrix-Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF MS)2022

    • Author(s)
      Oshiki Mamoru、Nagai Komei、Ishii Satoshi、Suzuki Yoshiyuki、Saito Nobuo、Yamaguchi Takashi、Araki Nobuo、Okabe Satoshi
    • Journal Title

      Applied and Environmental Microbiology

      Volume: 88 Issue: 7

    • DOI

      10.1128/aem.02416-21

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 海洋性Anammox細菌の脱アンモニウム能に及ぼすpHの影響:至適pH制御による脱アンモニウム能の回復2021

    • Author(s)
      田中孝国, 岡悟史, 押木守, 金田一智規, 新田見匡
    • Journal Title

      工業用水

      Volume: 669 Pages: 51-55

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 異なるpH条件下における 海洋性Anammox細菌の脱アンモニウム能2021

    • Author(s)
      田中孝国, 岡悟史, 田中昭雄, 押木守, 金田一智規, 新田見匡
    • Journal Title

      工業用水

      Volume: 667 Pages: 76-82

    • NAID

      40022662846

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Glycogen metabolism of the anammox bacterium “Candidatus Brocadia sinica”2020

    • Author(s)
      Okabe Satoshi、Shafdar Amrini Amalia、Kobayashi Kanae、Zhang Lei、Oshiki Mamoru
    • Journal Title

      The ISME Journal

      Volume: ‐ Issue: 5 Pages: 1287-1301

    • DOI

      10.1038/s41396-020-00850-5

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Biosynthesis of hydrazine from ammonium and hydroxylamine using an anaerobic ammonium oxidizing bacterium2020

    • Author(s)
      Oshiki Mamoru、Yamada Koshiro、Kato Itsuki、Okoshi Kento、Imai Toshiro、Yamaguchi Takashi、Araki Nobuo
    • Journal Title

      Biotechnology Letters

      Volume: 42 Issue: 6 Pages: 979-985

    • DOI

      10.1007/s10529-020-02865-6

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Total ammonia nitrogen (TAN) removal performance of a recirculating down-hanging sponge (DHS) reactor operated at 10 to 20°C with activated carbon2020

    • Author(s)
      Oshiki Mamoru、Aizuka Takashi、Netsu Hirotoshi、Oomori Satoshi、Nagano Akihiro、Yamaguchi Takashi、Araki Nobuo
    • Journal Title

      Aquaculture

      Volume: 520 Pages: 734963-734963

    • DOI

      10.1016/j.aquaculture.2020.734963

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] N2O production using native nos-deficient denitrifying bacterial strains screened by a genome mining approach2020

    • Author(s)
      Oshiki Mamoru、Ishimaru Miho、Hatamoto Masashi、Yamaguchi Takashi、Araki Nobuo、Okabe Satoshi
    • Journal Title

      Bioresource Technology Reports

      Volume: 11 Pages: 100529-100529

    • DOI

      10.1016/j.biteb.2020.100529

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Cell Density-dependent Anammox Activity of <i>Candidatus</i> Brocadia sinica Regulated by <i>N</i>-acyl Homoserine Lactone-mediated Quorum Sensing2020

    • Author(s)
      Oshiki Mamoru、Hiraizumi Haruna、Satoh Hisashi、Okabe Satoshi
    • Journal Title

      Microbes and Environments

      Volume: 35 Issue: 4 Pages: n/a

    • DOI

      10.1264/jsme2.ME20086

    • NAID

      130007929929

    • ISSN
      1342-6311, 1347-4405
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Oxygen isotopic fractionation and exchange during anaerobic ammonium oxidation (anammox)2021

    • Author(s)
      Kanae Kobayashi, Keitaro Fukushima, Yuji Onishi, Kazuya Nishina, Akiko Makabe, Mamoru Oshiki, Keisuke Koba, Satoshi Okabe
    • Organizer
      7th International Conference on Nitrification and Related Processes
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Colorimetric MALDI-TOF/MS; a simple and high-throughput method for determining 15N atom % of NH3, NO2-, NO3-, NH2OH and N2H42021

    • Author(s)
      Mamoru Oshiki, Komei Nagai, Satoshi Ishii, Yoshiyuki Suzuki, Nobuo Saito, Takashi Yamaguchi, Nobuo Araki, Satoshi Okabe
    • Organizer
      7th International Conference on Nitrification and Related Processes
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Metabolic pathways of urea and cyanate in an enrichment culture of a marine anammox bacterium Ca. Scalindua sp.”2021

    • Author(s)
      Morimoto, E, Kamizono, A, Kobayashi, K, Oshiki, M, Okabe, S
    • Organizer
      7th International Conference on Nitrification and Related Processes
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dual nitrogen and oxygen isotope fractionation during complete ammonia oxidation by comammox bacteria "Nitrospira inopinata"2021

    • Author(s)
      Baku Tsukada, Kanae Kobayashi, Keitaro Fukushima, Yuji Onishi, Mamoru Oshiki, Keisuke Koba, Satoshi Okabe
    • Organizer
      7th International Conference on Nitrification and Related Processes
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 海洋性アナモックス細菌 "Ca. Scalindua sp.”集積培養系における尿素及びシアン酸の代謝経路の解析2021

    • Author(s)
      森本衣美, 上薗亮達, 小林香苗, 押木守, 岡部聡
    • Organizer
      第34回日本微生物生態学会年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 海洋性アナモックス細菌とAOAは相利共生するか?2021

    • Author(s)
      松本衿花, 森本衣美, 上薗亮達, Shaoyu YE, 小林香苗, 押木守, 岡部聡
    • Organizer
      第34回日本微生物生態学会年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] なぜ低温硝化リアクター内で亜硝酸酸化細菌Nitrospira は優占できたのか~ Nitrospira とNitrosomonas の炭素固定経路の違い~2021

    • Author(s)
      根津 拓福, 黒田 恭平, 成廣 隆, 金田一 智規, 藤井 直樹, 荒木 信夫, 山口 隆司, 幡本 将史, 鈴木 義之, 岡部 聡, 押木 守
    • Organizer
      第34回日本微生物生態学会年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 比色分析と質量分析法を組み合わせた溶存無機態窒素の 15N/14N 比の新たな測定手法2021

    • Author(s)
      永井 孔明, 荒木 信夫, 鈴木 義之, 斉藤 信雄, 山口 隆司, 石井 聡, 押木 守
    • Organizer
      第34回日本微生物生態学会年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] AOB は電極呼吸によるアンモニア酸化が可能か?2021

    • Author(s)
      市原りえ, KOFFI Joel, 押木 守, 岡部 聡
    • Organizer
      第56回日本水環境学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 海洋性アナモックス細菌“Ca. Scalindua sp.”集積培養系における尿素及びシアン酸の代謝経路の解析2021

    • Author(s)
      森本衣美, 小林香苗, 押木 守, 岡部 聡
    • Organizer
      第56回日本水環境学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 公開 完全なアンモニア酸化(COMAMMOX)細菌“Nitrospira inopinata”の窒素・酸素同位体分別の解析2021

    • Author(s)
      塚田 麦, 小林香苗, 押木 守, 岡部 聡
    • Organizer
      第56回日本水環境学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 公開 フローサイトメトリーとアンプリコンシーケンス解析による活性汚泥における多剤耐性プラスミドの伝播頻度・宿 主域の調査2021

    • Author(s)
      樋口宏介, 北島正章, 岡部 聡, 押木 守
    • Organizer
      第56回日本水環境学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 煮沸・プロテアーゼK処理で失活しないanammox細菌の亜硝酸還元酵素の諸特性~anammox代謝機構の解明をめざして~2021

    • Author(s)
      中林豊博, 荒木信夫, 山口隆司, 岡部聡, 押木守
    • Organizer
      第55回日本水環境学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] MALDI-TOF/MSを用いた溶存無機態窒素の安定同位体比の測定~複合系内の窒素動態を簡便かつ迅速に評価する革新技術の開発~2021

    • Author(s)
      永井孔明, 荒木信夫, 鈴木義之, 斎藤信雄, 山口隆司, 石井聡, 押木守
    • Organizer
      第55回日本水環境学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 海洋性NitrospiraはなぜAOBより優占度が大きいのか2021

    • Author(s)
      根津拓福, 荒木信夫, 鈴木義之, 山口隆司, 幡本将史, 藤井直樹, 金田一智規, 黒田恭平, 成廣隆, 岡部聡, 押木守
    • Organizer
      第55回日本水環境学会年会
    • Related Report
      2020 Research-status Report

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

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