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Functional structure of internal ribosomal entry site in an RNA mycovirus

Research Project

Project/Area Number 15H06276
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Applied molecular and cellular biology
Research InstitutionNagoya University

Principal Investigator

CHIBA SOTARO  名古屋大学, アジアサテライトキャンパス学院(農), 特任准教授 (70754521)

Project Period (FY) 2015-08-28 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords菌類ウイルス / RNAウイルス / ハイポウイルス / IRES / 翻訳開始 / レポーターアッセイ / RNA高次構造 / 翻訳機構 / レポーターシステム / CHV1 / ウイルス / RNA構造 / RNAウイルス / IRES / CHV1
Outline of Final Research Achievements

Internal ribosomal entry site (IRES) recruits factors involved in translation initiation complex via specific RNA folding structures in a cap-independent manner. Some animal and plant viruses are known to use this machinery for their protein production. In this study, we developed an assay system for investigating IRES activity in filamentous fungi and discovered that fungal viruses (mycoviruses) holding IRES elements are present, for the first time. By taking mutagenesis approach, important RNA sequences and potential structures were identified from 5’ untranslated region of genomic RNA of Cryphonectria hypovirus 1 (CHV1, Hypoviridae) which is a representative of mycoviruses. Interestingly, the functional IRES needed a part of coding region of CHV1 p29, the most upstream open reading frame for multifunctional RNA silencing suppressor.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Annual Research Report
  • Research Products

    (12 results)

All 2016 2015

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Acknowledgement Compliant: 3 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Rice productivity improvement in Cambodia through the application of technical recommendation in a farmer field school2016

    • Author(s)
      Ngin Chhay, Suon Seng, Toshiharu Tanaka, Akira Yamauchi, Editha C. Cedicol, Kazuhito Kawakita, Sotaro Chiba
    • Journal Title

      International Journal of Sustainable Agriculture

      Volume: 15 Pages: 54-69

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Sequence and phylogenetic analyses of novel totivirus-like double-stranded RNAs from field-collected powdery mildew fungi2016

    • Author(s)
      Kondo, H., Hisano, S., Chiba, S., Maruyama K, Andika IB, Toyoda, K., Fujimori, F. and Suzuki, N.
    • Journal Title

      Virus Research

      Volume: 213 Pages: 353-364

    • DOI

      10.1016/j.virusres.2015.11.015

    • NAID

      120006732633

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] A novel betapartitivirus RnPV6 tolerate host RNA silencing but is interfered by its defective- RNAs.2016

    • Author(s)
      Chiba, S., Lin, Y.-H., Zhang, Kondo, H., Kanematsu, S., and Suzuki, N.
    • Journal Title

      Virus Research

      Volume: in press Pages: 62-72

    • DOI

      10.1016/j.virusres.2015.10.017

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Vigorous induction of dicer-like 2 gene by a virus interferes with an unrelated virus in the model phytopathogenic fungus Cryphonectria parasitica2016

    • Author(s)
      Chiba S, Suzuki N
    • Journal Title

      PSJ Plant Virus Disease Workshop Report

      Volume: 12 Pages: 51-57

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Highly activated RNA silencing via strong induction of dicer by one virus can interfere with the replication of an unrelated virus.2015

    • Author(s)
      Chiba, S. and Suzuki, N.
    • Journal Title

      Proceedings of the National Academy of Science, U S A

      Volume: 112 Issue: 35 Pages: 4911-8211

    • DOI

      10.1073/pnas.1509151112

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] フザリウム属菌のヴァイロコントロールを目指した菌類ウイルスの探索2016

    • Author(s)
      水谷行善, 須賀晴久, 鈴木信弘, 千葉壮太郎
    • Organizer
      アグリビジネス創出フェア2016 in 東海
    • Place of Presentation
      名古屋大学ES総合館
    • Year and Date
      2016-11-28
    • Related Report
      2016 Annual Research Report
  • [Presentation] Screening friendly viruses: characterization of novel mitochondrial viruses with potential to control a phytopathogenic fungus Fusarium boothii2016

    • Author(s)
      Y. Mizutani, A. Abraham, H, Suga, N. Suzuki, S. Chiba
    • Organizer
      名古屋大学,東亜大学校,中国・華中農業大学(HZAU)の3者のジョイントシンポジウム
    • Place of Presentation
      釜山東亜大学
    • Year and Date
      2016-11-10
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Vigorous induction of dicer-like 2 gene by a virus interferes with an unrelated virus in the model phytopathogenic fungus Cryphonectria parasitica2016

    • Author(s)
      千葉 壮太郎、鈴木信弘
    • Organizer
      日本植物病理学会大会
    • Place of Presentation
      倉敷市
    • Year and Date
      2016-03-24
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] RNAサイレンシング活性化による異種菌類ウイルス間の新規干渉作用(I)2016

    • Author(s)
      千葉 壮太郎、鈴木信弘
    • Organizer
      日本植物病理学会大会
    • Place of Presentation
      岡山市
    • Year and Date
      2016-03-21
    • Related Report
      2015 Annual Research Report
  • [Presentation] RNAサイレンシング活性化による異種菌類ウイルス間の新規干渉作用(II)2016

    • Author(s)
      林諭昕、千葉壮太郎、近藤秀樹、兼松聡子、鈴木信弘
    • Organizer
      日本植物病理学会大会
    • Place of Presentation
      岡山市
    • Year and Date
      2016-03-21
    • Related Report
      2015 Annual Research Report
  • [Presentation] 赤かび病菌感染ウイルスに関する研究2016

    • Author(s)
      水谷行善・須賀晴久・鈴木信弘・千葉壮太郎
    • Organizer
      菌類/植物ウイルス研究ミニシンポジウム
    • Place of Presentation
      岡山大学資源植物科学研究所
    • Related Report
      2016 Annual Research Report
  • [Presentation] Highly activated RNA silencing via strong induction of dicer by one virus can interfere with the replication of an unrelated virus2015

    • Author(s)
      千葉 壮太郎、鈴木信弘
    • Organizer
      日本ウイルス学会学
    • Place of Presentation
      福岡市
    • Year and Date
      2015-11-22
    • Related Report
      2015 Annual Research Report

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Published: 2015-08-26   Modified: 2019-03-29  

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