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Comprehensive Single-Molecule Protein Quantification Analysis Using Ribosome-Integrated Nanopore Technology

Research Project

Project/Area Number 21K18232
Research Category

Grant-in-Aid for Challenging Research (Pioneering)

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

Principal Investigator

UEMURA Sotaro  東京大学, 大学院理学系研究科(理学部), 教授 (00447442)

Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥26,000,000 (Direct Cost: ¥20,000,000、Indirect Cost: ¥6,000,000)
Fiscal Year 2023: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2022: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2021: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Keywords1分子計測 / ナノポア計測 / ペプチド / 機械学習 / ナノポア / 脂質膜 / 1分子 / タンパク質翻訳 / リボソーム / 膜タンパク質
Outline of Research at the Start

質量分析のタンパク質測定限界以下で、かつ抗体を必要としない高感度でハイスループットなタンパク質網羅解析技術を開発するために、本研究では無細胞翻訳系を融合したナノポアによるタンパク質の網羅解析を行う基盤技術の開発を行います。この手法を用いればタンパク質の高次構造が形成される前に測定が可能であり、ナノポアの通過はタンパク質翻訳と共役しているため、従来の通過速度より遅く制御させることが可能です。
さらに特定のアミノ酸信号を事前に機械学習させることによってアミノ酸配列の決定精度を向上させ、最終的には細胞から抽出した細胞液を用いて新しいペプチドの配列を網羅的にかつ定量的に決定することを目標とします。

Outline of Final Research Achievements

In this study, the goal was to develop a foundational technology for comprehensive protein analysis using ribosome-integrated nanopores to advance the comprehensive analysis of peptide molecules. Throughout the duration of the study, we first selected the translocon SecYEG and the molecular motor SecA complex from among the membrane channel proteins available for nanopore measurements, and successfully reconstituted them on artificial lipid bilayers. As a result, we detected membrane insertion current signals and were able to observe characteristic nanopore current waveforms only in the presence of peptide molecule substrates and ATP. Currently, we are attempting to detect current signal changes in response to artificial peptides containing repetitive amino acid sequences.

Academic Significance and Societal Importance of the Research Achievements

本研究による1分子ペプチドのアミノ酸配列同定の学術的意義や社会的意義は極めて大きく、その効果は計り知れない。特にペプチドはそもそも分解酵素によって分解されやすく分子数が少なく、増幅する技術も存在しない。基礎研究においてはシグナル伝達、アポトーシス制御だけでなく成長因子や免疫応答、神経伝達などの細胞機能制御に関わる学問領域に大きな貢献が期待される。さらに応用研究として、抗菌ペプチド、ドラッグデリバリー、ペプチド医薬品やホルモン検出などの臨床応用や診断、創薬領域にも大きな貢献が期待される。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Comments on the Screening Results   Research-status Report
  • Research Products

    (14 results)

All 2023 2022 2021

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 6 results) Presentation (7 results) Book (1 results)

  • [Journal Article] Comprehensive quantitative analysis of single-molecule proteins using ribosome fusion nanopore technology2023

    • Author(s)
      Uemura Sotaro
    • Journal Title

      Impact

      Volume: 2023 Issue: 2 Pages: 50-52

    • DOI

      10.21820/23987073.2023.2.50

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Accumulation of TERT in mitochondria shows two opposing effects on apoptosis2023

    • Author(s)
      Hiroshi Ebata, Tomohiro Shima, Ryo Iizuka, Sotaro Uemura
    • Journal Title

      FEBS Open Bio

      Volume: 13 Issue: 9 Pages: 1667-1682

    • DOI

      10.1002/2211-5463.13682

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Time-dependent cell-state selection identifies transiently expressed genes regulating ILC2 activation2023

    • Author(s)
      Tanaka Yumiko、Yamagishi Mai、Motomura Yasutaka、Kamatani Takashi、Oguchi Yusuke、Suzuki Nobutake、Kiniwa Tsuyoshi、Kabata Hiroki、Irie Misato、Tsunoda Tatsuhiko、Miya Fuyuki、Goda Keisuke、Ohara Osamu、Funatsu Takashi、Fukunaga Koichi、Moro Kazuyo、Uemura Sotaro、Shirasaki Yoshitaka
    • Journal Title

      Communications Biology

      Volume: 6 Issue: 1 Pages: 915-915

    • DOI

      10.1038/s42003-023-05297-w

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Upregulation of IL-4 receptor signaling pathway in circulating ILC2s from asthma patients2022

    • Author(s)
      Baba Rie、Kabata Hiroki、Shirasaki Yoshitaka、Kamatani Takashi、Yamagishi Mai、Irie Misato、Watanabe Risa、Matsusaka Masako、Masaki Katsunori、Miyata Jun、Moro Kazuyo、Uemura Sotaro、Fukunaga Koichi
    • Journal Title

      Journal of Allergy and Clinical Immunology: Global

      Volume: 1 Issue: 4 Pages: 299-304

    • DOI

      10.1016/j.jacig.2022.07.007

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Whole-embryonic identification of maternal microchimeric cell types in mouse using single-cell RNA sequencing2022

    • Author(s)
      Fujimoto Kana、Nakajima Akira、Hori Shohei、Tanaka Yumiko、Shirasaki Yoshitaka、Uemura Sotaro、Irie Naoki
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 18313-18313

    • DOI

      10.1038/s41598-022-20781-9

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Zero-mode waveguides and nanopore-based sequencing technologies accelerate single-molecule studies2022

    • Author(s)
      Ryo Iizuka, Hirohito Yamazaki, Sotaro Uemura
    • Journal Title

      Biophysics and Physicobiology

      Volume: 19 Issue: 0 Pages: n/a

    • DOI

      10.2142/biophysico.bppb-v19.0032

    • ISSN
      2189-4779
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Development of a single-particle inclusions detection method by solid-state nanopore for miRNA in single exosome detection2022

    • Author(s)
      Takumi Uchida, Hirohito Yamazaki, Ryo Iizuka, Sotaro Uemura
    • Organizer
      第60回日本生物物理学会年会
    • Related Report
      2022 Research-status Report
  • [Presentation] A study on the structural dynamics of the nucleosome containing H2A.B using solid-state nanopores2022

    • Author(s)
      Hikaru Nozawa, Hirohito Yamazaki, Ryo Iizuka, Rina Hirano, Tomoya Kujirai, Hitoshi Kurumizaka, Sotaro Uemura
    • Organizer
      第60回日本生物物理学会年会
    • Related Report
      2022 Research-status Report
  • [Presentation] ナノポア計測によるCALHM2チャネルダイナミクスの解明2022

    • Author(s)
      中村宗太郎、山崎洋人、志甫谷渉、濡木理、上村想太郎
    • Organizer
      第60回日本生物物理学会年会
    • Related Report
      2022 Research-status Report
  • [Presentation] フォトサーマル効果を活用した一分子ナノポア計測技術の創出2021

    • Author(s)
      山崎洋人、上村想太郎
    • Organizer
      第82回 応用物理学会秋季学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Photothermally enhanced single molecule nanopore sensing2021

    • Author(s)
      Hirohito Yamazaki, Sotaro Uemura
    • Organizer
      第59回日本生物物理学会年会
    • Related Report
      2021 Research-status Report
  • [Presentation] レーザー照射による固液界面でのリポソームの捕捉と破壊2021

    • Author(s)
      内田匠、山崎洋人、上村想太郎
    • Organizer
      第59回日本生物物理学会年会
    • Related Report
      2021 Research-status Report
  • [Presentation] CALHM2をナノポアとして用いた多様なサイズの分子検出法の開発2021

    • Author(s)
      中村宗太郎、山崎洋人、志甫谷渉、濡木理、上村想太郎
    • Organizer
      第59回日本生物物理学会年会
    • Related Report
      2021 Research-status Report
  • [Book] 生体分子環境の化学2023

    • Author(s)
      日本化学会
    • Total Pages
      208
    • Publisher
      化学同人
    • ISBN
      9784759814057
    • Related Report
      2022 Research-status Report

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

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