FIG. 2.
Genetic organization of the blaTEM-52 carrying transposon on a conjugative IncI1 plasmid from serovar Typhimurium strain 04-3486. The position and orientation of the genes are indicated by arrows. Gray arrows correspond to plasmid genes flanking the transposon. IRL and IRR correspond, respectively, to left and right terminal inverted repeats of Tn3 and are indicated as black arrowheads. The sequences of IRL and IRR are also indicated. The 5-bp direct repeat at the integration site of Tn3 downstream IRR is indicated in boldface letters. The black box between tnpA and tnpR indicates the resolution site of Tn3. The nucleotide sequence of TnblaTEM-52 has been deposited under GenBank accession number EF141186. A distance scale in kilobase pairs is given above the map.