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Construction of eukaryotic cells lacking mitochondria and their molecular biological analysis

Research Project

Project/Area Number 21K19204
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 43:Biology at molecular to cellular levels, and related fields
Research InstitutionSaitama University

Principal Investigator

Takahashi Yasuhiro  埼玉大学, 理工学研究科, 名誉教授 (10154874)

Co-Investigator(Kenkyū-buntansha) 中井 由実  大阪医科薬科大学, 医学部, 講師 (80268193)
Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2023: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2022: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2021: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords鉄硫黄クラスター / ミトコンドリア / 鉄硫黄タンパク質 / 出芽酵母
Outline of Research at the Start

本研究では、出芽酵母のサイトゾルにおけるFe-Sクラスター生合成系や硫黄供給系を操作することによって、ミトコンドリアの必須性を回避し、このオルガネラを人工的に欠失させる計画である。真核細胞におけるミトコンドリアの重要性を包括的に解明するとともに、このオルガネラを人為的に操作する道を拓く。

Outline of Final Research Achievements

In the budding yeast Saccharomyces cerevisiae, the only essential function of mitochondria is the biosynthesis of iron-sulfur (Fe-S) clusters by the ISC machinery. In this study, we attempted to create “eukaryotic cells without mitochondria” by modifying yeast so that it can biosynthesize Fe-S clusters only in the cytosol. By expressing components of the prokaryotic SUF machinery in the cytosol, we succeeded for the first time in disrupting the NFS1 gene that encodes an essential component of ISC machinery. This gene disruption indicates that the essential function of the mitochondrial ISC machinery could be bypassed by the foreign SUF machinery expressed in the cytosol. Next, we attempted under similar conditions, to disrupt the gene for Tim23, a central component of the protein transport machinery from the cytosol to the mitochondria. To date, we have not succeeded in isolating the deletion strain, but we have paved the way for future challenges.

Academic Significance and Societal Importance of the Research Achievements

本研究においてNfs1を欠失できたことは、ミトコンドリアISCマシナリーの必須機能を、サイトゾルに導入した古細菌由来のSUFマシナリーによってバイパスさせることができたことを示している。引き続き、同様の条件下で、サイトゾルからミトコンドリアへのタンパク質輸送装置の中心成分であるTim23の遺伝子の破壊を試みたが、現在まで、破壊株の単離には成功していない。ただし、今後の挑戦に向けて道筋をつけることはできた。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (16 results)

All 2024 2022 2021 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (10 results) (of which Int'l Joint Research: 2 results,  Invited: 3 results) Remarks (1 results)

  • [Journal Article] The minimal SUF system can substitute for the canonical iron-sulfur cluster biosynthesis systems by using inorganic sulfide as the sulfur source.2024

    • Author(s)
      Maya Murata, Taichi Murakami, Eiki Yuda, Nanami Mukai, Xintong Zheng, Natsumi Kurachi, Sachiko Mori, Shoko Ogawa, Kouhei Kunichika, Takashi Fujishiro, Kei Wada, and Yasuhiro Takahashi
    • Journal Title

      bioRxiv

      Volume: -

    • DOI

      10.1101/2024.03.20.586028

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cycloserine enantiomers inhibit PLP‐dependent cysteine desulfurase SufS via distinct mechanisms2022

    • Author(s)
      Nakamura Ryosuke、Ogawa Shoko、Takahashi Yasuhiro、Fujishiro Takashi
    • Journal Title

      The FEBS Journal

      Volume: 289 Issue: 19 Pages: 5947-5970

    • DOI

      10.1111/febs.16455

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] A distinct class of GTP-binding proteins mediates chloroplast protein import in Rhodophyta2022

    • Author(s)
      Baek Sanghun、Imamura Sousuke、Higa Takeshi、Nakai Yumi、Tanaka Kan、Nakai Masato
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 119 Issue: 34 Pages: 2208277119-2208277119

    • DOI

      10.1073/pnas.2208277119

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Structural diversity of cysteine desulfurases involved in iron-sulfur cluster biosynthesis2022

    • Author(s)
      Fujishiro Takashi、Nakamura Ryosuke、Kunichika Kouhei、Takahashi Yasuhiro
    • Journal Title

      Biophysics and Physicobiology

      Volume: 19 Issue: 0 Pages: n/a

    • DOI

      10.2142/biophysico.bppb-v19.0001

    • NAID

      130008162738

    • ISSN
      2189-4779
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] The Structure of the Dimeric State of IscU Harboring Two Adjacent [2Fe-2S] Clusters Provides Mechanistic Insights into Cluster Conversion to [4Fe-4S]2021

    • Author(s)
      Kunichika Kouhei、Nakamura Ryosuke、Fujishiro Takashi、Takahashi Yasuhiro
    • Journal Title

      Biochemistry

      Volume: 60 Issue: 20 Pages: 1569-1572

    • DOI

      10.1021/acs.biochem.1c00112

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Structural insights into biosynthesis of a [4Fe-4S] cluster via coupling of two adjacent [2Fe-2S] clusters in the IscU enzyme2022

    • Author(s)
      Kouhei Kunichika, Ryosuke Nakamura, Takashi Fujishiro, Yasuhiro Takahashi
    • Organizer
      錯体化学会第72回討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] Structural and functional analyses of E. coli SufBCD complex involved in iron-sulfur clusters biogenesis.2022

    • Author(s)
      Kei Wada, Yoshikazu Tanaka, Yasuhiro Takahashi
    • Organizer
      第60回日本生物物理学会年会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 鉄硫黄クラスター生合成に関わるSUF、SUF-like、ISC系の硫黄供給システムの酸化ストレス耐性の比較2022

    • Author(s)
      槇 千智、室賀 直来、寺畑 拓也、島田 侑希乃、國近 航平、中村 亮裕、藤城 貴史、高橋 康弘
    • Organizer
      第95回日本生化学会大会
    • Related Report
      2022 Research-status Report
  • [Presentation] メタン生成古細菌のSufB2C2複合体は鉄硫黄クラスター生合成系SUFマシナリーのプロトタイプである2022

    • Author(s)
      村上 太一、村田 真耶、藤城 貴史、高橋 康弘
    • Organizer
      第95回日本生化学会大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 2つの異なるタイプのシステインデスルフラーゼと基質類似分子との反応2022

    • Author(s)
      大塚 穂乃、中村 亮裕、小川 翔子、藤城 貴史、高橋 康弘
    • Organizer
      第95回日本生化学会大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 鉄硫黄クラスター生合成を担うSUFマシナリーの構造機能解析2022

    • Author(s)
      和田啓、田中良和、高橋康弘
    • Organizer
      第95回日本生化学会大会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Structural basis for biosynthesis of a [4Fe-4S] cluster from two [2Fe-2S] clusters on the IscU enzyme in ISC machinery2022

    • Author(s)
      Kouhei Kunichika, Ryosuke Nakamura, Takashi Fujishiro, Yasuhiro Takahashi
    • Organizer
      10th Asian Biological Inorganic Chemistry Conference (AsBIC10)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Molecular mechanism of the SUF system involved in the iron-sulfur cluster biogenesis.2022

    • Author(s)
      Kei Wada1, Yoshikazu Tanaka, Yasuhiro Takahashi
    • Organizer
      10th Asian Biological Inorganic Chemistry Conference (AsBIC10)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] ミトコンドリアの欠失を目指した真核細胞の鉄硫黄クラスター生合成系の改変2021

    • Author(s)
      市原將希、関亮太、中井由実、高橋康弘
    • Organizer
      第19回微生物研究会
    • Related Report
      2021 Research-status Report
  • [Presentation] 鉄硫黄クラスター生合成系の硫黄輸送に関わる分子種の比較2021

    • Author(s)
      槇千智、室賀直来、寺畑拓也、島田侑希乃、國近航平、中村亮祐、藤城貴史、高橋康弘
    • Organizer
      第19回微生物研究会
    • Related Report
      2021 Research-status Report
  • [Remarks] 分子統御研究室ホームページ

    • URL

      http://park.saitama-u.ac.jp/~tougyo/Home.html

    • Related Report
      2022 Research-status Report 2021 Research-status Report

URL: 

Published: 2021-07-13   Modified: 2025-01-30  

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