FIG 1.

Structural comparison of E. faecalis transposon Tn6674 with other related Tn554 family transposons. Accession numbers are as follows: Tn554, X03216; Tn5406, AF186237; Tn558, AJ715531; Tn559, FN677369; Tn6133, FR772051; Tn6188, HF565366; Tn6260, KX470419; and Tn6674, MK737778. A distance scale in kilobases is given. The transposase genes (tnpA, tnpB, and tnpC), antimicrobial and disinfectant resistance genes, and genes that code for other functions are shown in blue, red, and black, respectively. The 6-bp nucleotide sequences at the transposon junctions are shown in boxes. The disrupted radC genes are indicated by asterisks. The positions of primers circ-fw/circ-rev used to detect the presence of the circular intermediates are shown by black arrows.