Table 3 Characterization of class I integrons encoded by S. Heidelberg and E. coli. Integrons were amplified using primers intAF and intAR [25] and sequenced using these same primers, and if necessary to achieve complete coverage, intAF2a, intAF2b, intAF3, intAF4, intAR3 and intAR4 (Table 2).
Isolate | Source | Integron length (kbp) | Location | Genes encodeda |
|---|---|---|---|---|
01–7169 | Human – stool | 1.2 | Unknown b | aadA2 |
02–4660 | Human – stool | 1.2 | HMW plasmid | dhfRA1 |
02–5785 | Human – stool | 1.2 | Unknown c | nd |
03–0845 | Human – stool | 3.0 | HMW plasmid | aadB, cmlA |
05–4264 | Bovine – passive | 1.2 | Unknown c | dhfRA1 |
E. coli 830 | Chicken – abattoir | 1.0 | HMW plasmid | aadA1 |
E. coli 831 | Chicken – abattoir | 1.0 | HMW plasmid | aadA1 |
E. coli 833 | Chicken – abattoir | 1.0 | HMW plasmid | aadA1 |