Topological characterization of human and mouse M5C epitranscriptome revealed by bisulfite sequencing

Zhen Wei, Subbarayalu Panneerdoss, Santosh Timilsina, Jingting Zhu, Tabrez A. Mohammad, Zhi Liang Lu, João Pedro De Magalhães, Yidong Chen, Rong Rong, Yufei Huang, Manjeet K. Rao, Jia Meng

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Background. Compared with the well-studied 5-methylcytosine (m5C) in DNA, the role and topology of epitranscriptome m5C remain insufficiently characterized. Results. Through analyzing transcriptome-wide m5C distribution in human and mouse, we show that the m5C modification is significantly enriched at 5′ untranslated regions (5′UTRs) of mRNA in human and mouse. With a comparative analysis of the mRNA and DNA methylome, we demonstrate that, like DNA methylation, transcriptome m5C methylation exhibits a strong clustering effect. Surprisingly, an inverse correlation between mRNA and DNA m5C methylation is observed at CpG sites. Further analysis reveals that RNA m5C methylation level is positively correlated with both RNA expression and RNA half-life. We also observed that the methylation level of mitochondrial RNAs is significantly higher than RNAs transcribed from the nuclear genome. Conclusions. This study provides an in-depth topological characterization of transcriptome-wide m5C modification by associating RNA m5C methylation patterns with transcriptional expression, DNA methylations, RNA stabilities, and mitochondrial genome.

Original languageEnglish (US)
Article number1351964
JournalInternational Journal of Genomics
Volume2018
DOIs
StatePublished - 2018

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Genetics
  • Pharmaceutical Science

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