• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Elucidation of RNA recognition mechanism of Xrn1

Research Project

Project/Area Number 17K15092
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Functional biochemistry
Research InstitutionOkayama University

Principal Investigator

Watanabe Kazunori  岡山大学, ヘルスシステム統合科学研究科, 助教 (70602027)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
KeywordsXrn1 / Xrn2 / 熱ストレス / miRNA / tRNA分解 / miRNA分解 / ストレス応答
Outline of Final Research Achievements

In this study, we attempted to elucidate the activation mechanism and RNA recognition mechanism of Xrn1 and Xrn2 (Xrn1/2) by heat stress. At first, to elucidate the RNA recognition mechanism of Xrn1/2, we examined the construction and purification condition of Xrn1/2 expression system using various affinity tags. As a result, the yield and purity of Xrn1/2 could not be sufficiently obtained. However, Xrn2 activity could be confirmed in in vitro analysis.
In order to clarify the activation mechanism of Xrn1/2, we attempted to determine the proteins that bind to and dissociate from Xrn1/2 in heat-dependent manner. We succeeded in identifying multiple proteins. We are currently investigating whether these proteins are involved in the heat-induced activation of Xrn1/2.

Academic Significance and Societal Importance of the Research Achievements

熱ストレス依存的なXrn1/2結合・解離タンパク質を同定することで、Xrn1/2の活性化機構を明らかにできると考えている。今後、Xrn1/2活性化機構を明らかにしていくことで、ストレス応答研究の基礎的な知見として貢献できると考えている。また、がん治療法の1つである温熱療法の基礎的な知見としても貢献できるだけでなく、より効果的な温熱療法開発研究へと普及していくと考えている。
またin vitro解析よりXrn2は開始tRNAを分解できたことから、細胞内で観察されていたXrn2の活性は正しかったことが裏付けされた。そのため、Xrn2の新たな基質としての知見として貢献できたと考えている。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (27 results)

All 2020 2019 2018 2017

All Journal Article (9 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results,  Open Access: 2 results,  Acknowledgement Compliant: 1 results) Presentation (18 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Endosomal escape of peptide-photosensitizer conjugates is affected by amino acid sequences near the photosensitizer.2020

    • Author(s)
      Miyoshi, Y., Kadono, M., Okazaki, S., Nishimura, A., Kitamatsu, M., Watanabe, K., and Ohtsuki, T.
    • Journal Title

      Bioconjugate Chemistry

      Volume: 31 Issue: 3 Pages: 916-922

    • DOI

      10.1021/acs.bioconjchem.0c00046

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Relation of photochemical internalization to heat, pH, and Ca2+ ions.2019

    • Author(s)
      Soe, T. H., Nanjo, T., Watanabe, K., and Ohtsuki, T.
    • Journal Title

      Photochemistry and Photobiology

      Volume: 95 Issue: 6 Pages: 1395-1402

    • DOI

      10.1111/php.13146

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In-stem molecular beacon targeted to a 5′-region of tRNA inclusive of the D arm that detects mature tRNA with high sensitivity2019

    • Author(s)
      Miyoshi Yuichi、Ohtsuki Takashi、Kashida Hiromu、Asanuma Hiroyuki、Watanabe Kazunori
    • Journal Title

      PLOS ONE

      Volume: 14 Issue: 1 Pages: e0211505-e0211505

    • DOI

      10.1371/journal.pone.0211505

    • NAID

      120006767317

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Formation Mechanism and Cellular Functions of Nuclear Stress Bodies Induced by Heat Stress2018

    • Author(s)
      Yuichi Miyoshi, Kazunori Watanabe
    • Journal Title

      Thermal Medicine

      Volume: 34 Issue: 3 Pages: 23-34

    • DOI

      10.3191/thermalmed.34.23

    • NAID

      130007520470

    • ISSN
      1882-2576, 1882-3750
    • Year and Date
      2018-09-15
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Red and Near-Infrared Light-Directed Cytosolic Delivery of Two Different RNAs Using Photosensitive RNA Carriers2018

    • Author(s)
      Shiraga Kaori、Soe Tet Htut、Matsumoto Sho、Watanabe Kazunori、Ohtsuki Takashi
    • Journal Title

      Bioconjugate Chemistry

      Volume: 29 Issue: 9 Pages: 3174-3179

    • DOI

      10.1021/acs.bioconjchem.8b00487

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] 創薬を支える光技術-光とRNAを用いた遺伝子発現制御法-2018

    • Author(s)
      渡邉和則、大槻高史
    • Journal Title

      光アライアンス

      Volume: 6月号 Pages: 1-5

    • Related Report
      2018 Research-status Report
  • [Journal Article] MicroRNA-664a-5p promotes neuronal differentiation of SH-SY5Y cells2018

    • Author(s)
      Watanabe Kazunori、Yamaji Ryuhei、Ohtsuki Takashi
    • Journal Title

      Genes Cells

      Volume: 23 Issue: 3 Pages: 225-233

    • DOI

      10.1111/gtc.12559

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Ultrasound-dependent cytoplasmic internalization of a peptide-sonosensitizer conjugate2017

    • Author(s)
      Inaba Yuki、Watanabe Kazunori、Kitamatsu Mizuki、Nakata Eiji、Harada Atsushi、Ohtsuki Takashi
    • Journal Title

      Bioorg. Med. Chem. Lett.

      Volume: 25 Issue: 15 Pages: 4212-4217

    • DOI

      10.1016/j.bmc.2017.06.024

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Detection of small, highly structured RNAs by molecular beacons.2017

    • Author(s)
      Jin Li, Chengzhen Xu, Naotaka Shimada, Yuichi Miyoshi, Kazunori Watanabe, Wang Cong, Takashi Ohtsuki
    • Journal Title

      Analytical Methods

      Volume: 印刷中 Issue: 20 Pages: 2971-2976

    • DOI

      10.1039/c7ay00341b

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] mTOR複合体を介した核内ストレス顆粒形成機構の解明2019

    • Author(s)
      渡邉和則、井上歩実、岡田真実、山本理紗子、大槻高史
    • Organizer
      日本ハイパーサーミア学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 温熱によるSatellite III RNAの発現上昇はmTOR複合体により制御されている2019

    • Author(s)
      渡邉和則、井上歩実、大槻高史
    • Organizer
      日本RNA学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] mTOR複合体制御による核内ストレス顆粒形成機構の解明2019

    • Author(s)
      渡邉和則、井上歩実、岡田真実、山本理紗子、大槻高史
    • Organizer
      日本分子生物学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 温熱によるXrn1/2活性化機構の解明2019

    • Author(s)
      岩城 香菜子、大槻高史、渡邉和則
    • Organizer
      日本ハイパーサーミア学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ヒトRNA分解酵素Xrn1, Xrn2の基質認識機構の解明2019

    • Author(s)
      大西雄也、渡邉和則、大槻高史
    • Organizer
      日本分子生物学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Pre-miR-664aによるアポトーシスの誘導2018

    • Author(s)
      渡邉和則、縄稚朋子、大槻高史
    • Organizer
      日本RNA学会
    • Related Report
      2018 Research-status Report
  • [Presentation] moleculer beaconによる高度に構造をとる短鎖RNAの検出2018

    • Author(s)
      三好祐一、渡邉和則、樫田啓、浅沼浩之、大槻高史
    • Organizer
      日本RNA学会
    • Related Report
      2018 Research-status Report
  • [Presentation] mTOR複合体を介した温熱による核内ストレス構造体形成機構の解明2018

    • Author(s)
      井上歩実、岡田真実、山本理紗子、大槻高史、渡邉和則
    • Organizer
      日本ハイパーサーミア学会
    • Related Report
      2018 Research-status Report
  • [Presentation] 温熱による開始tRNA分解を介した翻訳抑制と細胞周期との関係性2018

    • Author(s)
      渡邉和則、梅本裕介、長房すずか、高橋昭久、井尻憲一、大槻高史
    • Organizer
      日本ハイパーサーミア学会
    • Related Report
      2018 Research-status Report
  • [Presentation] 細胞周期依存的な開始tRNA分解を介した温熱による翻訳抑制機構2018

    • Author(s)
      渡邉和則、梅本裕介、長房すずか、高橋昭久、井尻憲一、大槻高史
    • Organizer
      日本生化学会
    • Related Report
      2018 Research-status Report
  • [Presentation] Mechanism and Application of photoinduced cytosolic dispersion of RNA (PCDR) method2018

    • Author(s)
      Takashi Ohtsuki, Tet Htut Soe, Kazunori Watanabe
    • Organizer
      日本生物物理学会
    • Related Report
      2018 Research-status Report
  • [Presentation] 温熱により形成される核内ストレス顆粒形成機構の解明2018

    • Author(s)
      渡邉和則、井上歩実、岡田真実、山本理紗子、大槻高史
    • Organizer
      日本分子生物学会
    • Related Report
      2018 Research-status Report
  • [Presentation] pre-miR-664aによる光依存的なアポトーシス誘導法の開発2018

    • Author(s)
      縄稚朋子、渡邉和則、大槻高史
    • Organizer
      日本分子生物学会
    • Related Report
      2018 Research-status Report
  • [Presentation] Photochemical and sonochemical internalization of CPP-cargo-sensitizer conjugates2018

    • Author(s)
      T. Ohtsuki, S. Miki, Y. Inaba, S. Kobayashi, T. Haraguchi, E. Nakata, A. Harada, K. Hirakawa, S. Okazaki, M. Kitamatsu, K. Watanabe
    • Organizer
      Pacific Rim Nano Medicine Symposium
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] MiR-664a-5pは神経分化誘導に重要である2017

    • Author(s)
      渡邉和則、山路隆平、大槻高史
    • Organizer
      日本RNA学会
    • Related Report
      2017 Research-status Report
  • [Presentation] mTORを介した温熱による核内ストレス構造体形成機構2017

    • Author(s)
      渡邉和則、岡田真実、井上歩実、山本理紗子、大槻高史
    • Organizer
      日本ハイパーサーミア学会
    • Related Report
      2017 Research-status Report
  • [Presentation] Pre-miR-664aを用いた光依存的な細胞死の誘導2017

    • Author(s)
      縄稚朋子、渡邉和則、大槻高史
    • Organizer
      日本分子生物学会
    • Related Report
      2017 Research-status Report
  • [Presentation] mTORを介した核内ストレス構造体の熱ストレス下における形成機構2017

    • Author(s)
      井上歩実、渡邉和則、岡田真実、山本理紗子、大槻高史
    • Organizer
      日本分子生物学会
    • Related Report
      2017 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi