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RNA informatics for epi-transcriptome analysis

Research Project

Project/Area Number 16H02484
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field System genome science
Research InstitutionThe University of Tokyo

Principal Investigator

Asai Kiyoshi  東京大学, 大学院新領域創成科学研究科, 教授 (30356357)

Co-Investigator(Kenkyū-buntansha) 浜田 道昭  早稲田大学, 理工学術院, 教授 (00596538)
亀田 倫史  国立研究開発法人産業技術総合研究所, 情報・人間工学領域, 主任研究員 (40415774)
阿部 洋  名古屋大学, 理学研究科, 教授 (80415067)
櫻庭 俊  国立研究開発法人量子科学技術研究開発機構, 量子生命科学領域, 主任研究員(任常) (90647380)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥45,630,000 (Direct Cost: ¥35,100,000、Indirect Cost: ¥10,530,000)
Fiscal Year 2018: ¥12,090,000 (Direct Cost: ¥9,300,000、Indirect Cost: ¥2,790,000)
Fiscal Year 2017: ¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000)
Fiscal Year 2016: ¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Keywords修飾塩基 / RNA2次構造 / エピトランスクリプトーム / バイオインフォマティクス / 分子動力学 / エネルギーパラメタ / RNA2次構造 / エヒトランスプリクトーム / RNA2次構造 / エピとランスクリプトーム解析 / エピトランスクリプトーム解析
Outline of Final Research Achievements

The energy parameters of the important modified bases, inosine and N6 methyladenosine were identified by a combination of thermometric experiments and molecular simulations. The effect of estimation error on structure prediction was evaluated and presented by theoretical analysis and computer experiments. A model of the effect of A-to-I editing on translational repression efficiency by miRNA was constructed and presented in a joint study using the identified inosine parameters.
We have improved RintD, an analysis tool for secondary structure probability distribution, by developing RintW, which calculates the distribution of base pair probability, and RintC, which speeds up the calculation with maximum base pair constraint. At that time, the effect of the Fourier transform on the numerical error was analyzed using the accuracy guarantee calculation, and it was shown that the large probability was reliable.

Academic Significance and Societal Importance of the Research Achievements

重要な修飾塩基であるイノシン、m6Aの未同定のエネルギーパラメタを熱測定実験と分子シミュレーションによって同定し、イノシン、m6Aを含むRNA分子の2次構造予測が可能となった。
RNAの塩基修飾はRNA2次構造変化をもたらし、他の分子との相互作用の変化はその機能を変化させる。我々の成果により、これまで不可能であったイノシン、m6A修飾の構造・相互作用へ影響の解析が可能となった。イノシンのエネルギーパラメータはmiRNAによる翻訳抑制効率に対する A-to-I 編集の影響のモデルで検証された。

Report

(4 results)
  • 2019 Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (13 results)

All 2020 2019 2018 2017 2016

All Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results,  Open Access: 7 results,  Acknowledgement Compliant: 1 results) Presentation (5 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Journal Article] RintC: fast and accuracy-aware decomposition of distributions of RNA secondary structures with extended logsumexp2020

    • Author(s)
      Hiroki Takizawa, Junichi Iwakiri, Kiyoshi Asai
    • Journal Title

      BMC Bioinformatics

      Volume: 21 Issue: 1 Pages: 210-210

    • DOI

      10.1186/s12859-020-3535-5

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A robust model for quantitative prediction of the silencing efficacy of wild-type and A-to-I edited miRNAs2019

    • Author(s)
      Tian Shen、Terai Goro、Kobayashi Yoshiaki、Kimura Yasuaki、Abe Hiroshi、Asai Kiyoshi、Ui-Tei Kumiko
    • Journal Title

      RNA Biology

      Volume: 17 Issue: 2 Pages: 264-280

    • DOI

      10.1080/15476286.2019.1678364

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Estimating energy parameters for RNA secondary structure predictions using both experimental and computational data2018

    • Author(s)
      Shimpei Nishida, Shun Sakuraba, Kiyoshi Asai, and Michiaki Hamada
    • Journal Title

      IEEE/ACM Transactions on Computational Biology and Bioinformatics

      Volume: - Issue: 5 Pages: 1645-1655

    • DOI

      10.1109/tcbb.2018.2813388

    • Description
      in press
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Capturing alternative secondary structures of RNA by decomposition of base-pairing probabilities2018

    • Author(s)
      Hagio Taichi、Sakuraba Shun、Iwakiri Junichi、Mori Ryota、Asai Kiyoshi
    • Journal Title

      BMC Bioinformatics

      Volume: 19 Issue: Suppl 1 Pages: 38-38

    • DOI

      10.1186/s12859-018-2018-4

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Identification of Transposable Elements Contributing to Tissue-Specific Expression of Long Non-Coding RNAs2018

    • Author(s)
      Chishima Takafumi、Iwakiri Junichi、Hamada Michiaki
    • Journal Title

      Genes

      Volume: 9 Issue: 1 Pages: 23-23

    • DOI

      10.3390/genes9010023

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Chemical ligation of oligonucleotides using an electrophilic phosphorothioester2017

    • Author(s)
      Maruyama Hideto、Oikawa Ryota、Hayakawa Mayu、Takamori Shono、Kimura Yasuaki、Abe Naoko、Tsuji Genichiro、Matsuda Akira、Shuto Satoshi、Ito Yoshihiro、Abe Hiroshi
    • Journal Title

      Nucleic Acids Research

      Volume: 45 Issue: 12 Pages: 7042-7048

    • DOI

      10.1093/nar/gkx459

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Training alignment parameters for arbitrary sequencers with LAST-TRAIN2017

    • Author(s)
      Hamada M, Ono Y, Asai K, Frith MC
    • Journal Title

      Bioinformatics

      Volume: 33 Issue: 6 Pages: 926-928

    • DOI

      10.1093/bioinformatics/btw742

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Computational prediction of lncRNA-mRNA interactions by integrating tissue specificity in human transcriptome2017

    • Author(s)
      Iwakiri Junichi、Terai Goro、Hamada Michiaki
    • Journal Title

      Biology Direct

      Volume: 12 Issue: 1 Pages: 15-15

    • DOI

      10.1186/s13062-017-0183-4

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Capturing Alternative Secondary Structures of RNA by Decomposition of Base Pairing Probabilities2017

    • Author(s)
      Taichi Hagio, Shun Sakuraba, Junichi Iwakiri, Ryota Mori and Kiyoshi Asai
    • Organizer
      The 28th International Conference on Genome Informatics GIW/BIOINFO 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Estimating energy parameters for RNA secondary structure predictions using both experimental and computational data2017

    • Author(s)
      Shimpei Nishida, Shun Sakuraba, Kiyoshi Asai, Michiaki Hamada
    • Organizer
      The 28th International Conference on Genome Informatics GIW/BIOINFO 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Predicting RNA-RNA duplex dimerization energy from the molecular dynamics simulation2016

    • Author(s)
      Shun Sakuraba, Tomoshi Kameda and Kiyoshi Asai
    • Organizer
      RNA2016
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] RNA-RNA の相対結合自由エネルギー計算2016

    • Author(s)
      桜庭 俊, 浅井 潔, 亀田 倫史
    • Organizer
      第19回理論化学討論会
    • Related Report
      2016 Annual Research Report
  • [Presentation] Algorithms for Marginal Probabilities on RNA Secondary Structures2016

    • Author(s)
      Kiyoshi Asai
    • Organizer
      ALGO2016 & WABI2016
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited

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Published: 2016-04-21   Modified: 2021-02-19  

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