Dendrogram of confirmed and putative acquired N7 G1405 16S-RMTases. The dendrogram was generated using the tools available at http://www.phylogeny.fr (27). GenBank protein sequence accession numbers are as follows: ArmA, AAP50754.1; RmtA, BAD12551.1; RmtB1, BAC81971.1; RmtB2, AFC75738.1; RmtC, BAE48305.1; RmtD1, ABJ53409.1; RmtD2, ADW66527.1; RmtE, ADA63498.1; RmtF, AFJ11385.1. The numbers represent branch support values. The scale bar shows length in proportional difference.