N6-methyladenosine Modification of Hepatitis B Virus RNA in the Coding Region of HBx

Takayuki Murata, Satoko Iwahori, Yusuke Okuno, Hironori Nishitsuji, Yusuke Yanagi, Koichi Watashi, Takaji Wakita, Hiroshi Kimura, Kunitada Shimotohno

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


N6-methyladenosine (m6A) is a post-transcriptional modification of RNA involved in transcript transport, degradation, translation, and splicing. We found that HBV RNA is modified by m6A predominantly in the coding region of HBx. The mutagenesis of methylation sites reduced the HBV mRNA and HBs protein levels. The suppression of m6A by an inhibitor or knockdown in primary hepatocytes decreased the viral RNA and HBs protein levels in the medium. These results suggest that the m6A modification of HBV RNA is needed for the efficient replication of HBV in hepatocytes.

Original languageEnglish
Article number2265
JournalInternational journal of molecular sciences
Issue number3
Publication statusPublished - 02-2023

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Molecular Biology
  • Spectroscopy
  • Computer Science Applications
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry


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