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Analysis of specific interactions among influenza A virus genomic RNAs

Research Project

Project/Area Number 19K22529
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 49:Pathology, infection/immunology, and related fields
Research InstitutionKyoto University

Principal Investigator

Noda Takeshi  京都大学, ウイルス・再生医科学研究所, 教授 (00422410)

Project Period (FY) 2019-06-28 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2021: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsインフルエンザウイルス / ゲノムパッケージング / RNA
Outline of Research at the Start

インフルエンザウイルスのゲノムRNAは8分節に分かれている。各RNA分節はウイルス核タンパク質およびRNAポリメラーゼと結合し、RNP複合体として存在する。これまで、子孫ウイルス粒子が何本のRNA分節をどのように取り込むか、長年の謎だった。申請者は、各ゲノムRNA分節上にそれぞれ特有のパッケージングシグナル配列が必須であること、また、子孫ウイルス粒子内には8種類のRNP複合体が規則的な配置をとって取り込まれることを明らかにした。そこで本研究では、ゲノムパッケージング機構におけるウイルスゲノムRNAを介したRNP複合体間相互作用の立証とその分子基盤の解明を目的とする。

Outline of Final Research Achievements

Influenza A virus genome consists of eight-segmented, single-stranded, negative-sense viral RNAs (vRNAs). It has been shown that the eight vRNAs are selectively packaged into progeny virions through segment-specific packaging signals that are located in both the terminal coding regions and adjacent noncoding regions of each vRNA. However, the contributions of the packaging signals to the intersegment interactions are not understood. Here, using synthesized vRNAs containing the packaging signal sequences, we performed in vitro RNA binding assays and identified 15 intersegment interactions among eight vRNAs, most of which were mediated by the 3'- and 5'-terminal regions. Interestingly, all eight vRNAs interacted with multiple other vRNAs, in that some bound to different vRNAs through their respective 3'- and 5'-terminal regions. Our findings would be of use in future studies of in vivo vRNA-vRNA interactions during selective genome packaging.

Academic Significance and Societal Importance of the Research Achievements

本研究では、インフルエンザウイルスの8種類のゲノムRNAの間にパッケージングシグナルを介したRNA-RNA相互作用が存在することを明らかにした。本相互作用は選択的ゲノムパッケージングにおいて重要な役割を果たすと考えれらることから、新たな抗インフルエンザ薬の標的となると考えられる。

Report

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

    (10 results)

All 2022 2021 2020 2019

All Journal Article (10 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 10 results,  Open Access: 7 results)

  • [Journal Article] Contribution of RNA-RNA Interactions Mediated by the Genome Packaging Signals for the Selective Genome Packaging of Influenza A Virus.2022

    • Author(s)
      Miyamoto S, Muramoto Y, Shindo K, Fujita-Fujiharu Y, Morikawa T, Tamura R, Gilmore JL, Nakano M, Noda T.
    • Journal Title

      J Virol

      Volume: 96 Issue: 6

    • DOI

      10.1128/jvi.01641-21

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Migration of Influenza Virus Nucleoprotein into the Nucleolus Is Essential for Ribonucleoprotein Complex Formation2022

    • Author(s)
      Sho Miyamoto, Masahiro Nakano, Takeshi Morikawa, Ai Hirabayashi, Ryoma Tamura, Yoko Fujita-Fujiharu, Nanami Hirose, Yukiko Muramoto, and Takeshi Noda
    • Journal Title

      mBio

      Volume: 13 Issue: 1

    • DOI

      10.1128/mbio.03315-21

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ultrastructure of influenza virus ribonucleoprotein complexes during viral RNA synthesis2021

    • Author(s)
      Masahiro Nakano, Yukihiko Sugita, Noriyuki Kodera, Sho Miyamoto, Yukiko Muramoto, Matthias Wolf, and Takeshi Noda
    • Journal Title

      Commun. Biol.

      Volume: 4 Issue: 1 Pages: 858-858

    • DOI

      10.1038/s42003-021-02388-4

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Selective Genome Packaging Mechanisms of Influenza A Viruses.2021

    • Author(s)
      Noda T
    • Journal Title

      Cold Spring Harb Perspect Med.

      Volume: in press Pages: a038497-a038497

    • DOI

      10.1101/cshperspect.a038497

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Influenza A virus NS1 optimises virus infectivity by enhancing genome packaging in a dsRNA-binding dependent manner2020

    • Author(s)
      Sha Tim Wai、Weber Michaela、Kasumba Dacquin M.、Noda Takeshi、Nakano Masahiro、Kato Hiroki、Fujita Takashi
    • Journal Title

      Virology Journal

      Volume: 17 Issue: 1 Pages: 107-107

    • DOI

      10.1186/s12985-020-01357-3

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] G Protein Pathway Suppressor 1 Promotes Influenza Virus Polymerase Activity by Activating the NF-κB Signaling Pathway.2020

    • Author(s)
      Kuwahara T, Yamayoshi S, Noda T, Kawaoka Y.
    • Journal Title

      mBio

      Volume: 10 Issue: 6

    • DOI

      10.1128/mbio.02867-19

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] In vitro vRNA-vRNA interactions in the H1N1 influenza A virus genome.2020

    • Author(s)
      Miyamoto S, Noda T.
    • Journal Title

      Microbiol Immunol

      Volume: 64 Issue: 3 Pages: 202-209

    • DOI

      10.1111/1348-0421.12766

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] N4BP1 restricts HIV-1 and its inactivation by MALT1 promotes viral reactivation.2019

    • Author(s)
      Yamasoba D, Sato K, Ichinose T, Imamura T, Koepke L, Joas S, Reith E, Hotter D, Misawa N, Akaki K, Uehata T, Mino T, Miyamoto S, Noda T, Yamashita A, Standley DM, Kirchhoff F, Sauter D, Koyanagi Y, Takeuchi O.
    • Journal Title

      Nat Microbiol

      Volume: 4 Issue: 9 Pages: 1532-1544

    • DOI

      10.1038/s41564-019-0460-3

    • NAID

      120006731123

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Generation of a purely clonal defective interfering influenza virus.2019

    • Author(s)
      Yamagata Y, Muramoto Y, Miyamoto S, Shindo K, Nakano M, Noda T.
    • Journal Title

      Microbiol Immunol.

      Volume: 63 Pages: 164-171

    • NAID

      40021927501

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Local structural changes of the influenza A virus ribonucleoprotein complex by single mutations in the specific residues involved in efficient genome packaging.2019

    • Author(s)
      Takizawa N, Ogura Y, Fujita Y, Noda T, Shigematsu H, Hayashi T, Kurokawa K
    • Journal Title

      Virology

      Volume: 531 Pages: 126-140

    • DOI

      10.1016/j.virol.2019.03.004

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access

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Published: 2019-07-04   Modified: 2023-01-30  

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