Core DGR element found in Vibrio cholerae HE-09. A 1.5 kb fragment of the Vibrio phage kappa was replaced by a 2.9 kb fragment in V. cholerae HE-09, including an RT ORF, a template repeat (TR), an atd ORF and an mtd ORF including a variable region (VR), The inserted fragment bears high homology to corresponding elements in the Bordetella phage BPP-1. Sequences upstream and downstream of the 2.9 kb element correspond to homologous sequences in Vibrio phage kappa.
Schillinger et al. BMC Genomics 2012 13:430 doi:10.1186/1471-2164-13-430