Mechanism and biological role of Dnmt2 in Nucleic Acid Methylation

Albert Jeltsch, Ann Ehrenhofer-Murray, Tomasz P. Jurkowski, Frank Lyko, Gunter Reuter, Serge Ankri, Wolfgang Nellen, Matthias Schaefer, Mark Helm

Research output: Contribution to journalReview articlepeer-review

Abstract

A group of homologous nucleic acid modification enzymes called Dnmt2, Trdmt1, Pmt1, DnmA, and Ehmet in different model organisms catalyze the transfer of a methyl group from the cofactor S-adenosyl-methionine (SAM) to the carbon-5 of cytosine residues. Originally considered as DNA MTases, these enzymes were shown to be tRNA methyltransferases about a decade ago. Between the presumed involvement in DNA modification-related epigenetics, and the recent foray into the RNA modification field, significant progress has characterized Dnmt2-related research. Here, we review this progress in its diverse facets including molecular evolution, structural biology, biochemistry, chemical biology, cell biology and epigenetics.

Original languageEnglish
Pages (from-to)1108-1123
Number of pages16
JournalRNA Biology
Volume14
Issue number9
DOIs
StatePublished - 2 Sep 2017

Keywords

  • DNA methylation
  • RNA methylation
  • epigenetics
  • methylcytidine
  • tRNA

All Science Journal Classification (ASJC) codes

  • Molecular Biology
  • Cell Biology

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