Dnmt2 is a member of the eukaryotic DNA methyltransferase family. A few model organisms, especially Drosophila melanogaster, Schizosaccharomyces pombe, Entamoeba histolytica and Dictyostelium discoideum contain only one Dnmt2 homologue but lack the more active homologues Dnmt1 and Dnmt3 (Müller et al. 2013 ). D.discoideum Dnmt2-homologue DnmA is an active tRNA methyltransferase that modifies C38 in tRNAGUCAspin vitro and in vivo. By an ultraviolet-crosslinking and immunoprecipitation approach, we identified further DnmA targets. This revealed specific tRNA fragments bound by the enzyme and identified tRNA(CUC/UUC)Glu and tRNAGCCGly as new but weaker substrates for both human Dnmt2 and DnmA in vitro but apparently not in vivo. Dnmt2 enzymes form transient covalent complexes with their substrates (Müller et al. 2013 ).