Table 2.
Number of integrons identified and integron gene cassette content in retrospective isolates (n = 193).
| Integron | Number of isolates containing integron | Number located on plasmids | Integron gene cassettes arranged 5′–3′ | |||
|---|---|---|---|---|---|---|
| In2 | 21 | 19 | aadA1a | |||
| In740 | 9 | 9 | aadA1bs | |||
| In571 | 5 | 5 | aadB | gcuE2 | gcu8 | cmlA1g |
| In363 | 4 | 4 | dfrA1 | gcuC | ||
| In27 | 2 | 1 | dfrA12 | gcuF | aadA2 | |
| In0 | 2 | 0 | ||||
| In142 | 2 | 2 | aadA7 | |||
| In167 | 2 | 0 | blaCARB-2 | |||
| In287 | 2 | 2 | aadA6D2 | |||
| In839 | 2 | 1 | aadA1bx | |||
| In45 | 1 | 1 | aadA12 | |||
| In127 | 1 | 0 | aadA2 | |||
| In191 | 1 | 0 | dfrA14b | |||
| In862 | 1 | 1 | estX-3 | aadA1a | ||
| In1581∗ | 1 | 0 | aadA7g | |||
| In1582∗ | 1 | 0 | dfrA16c | blaCARB-3 | aadA2 | ereA1c |
| In1583∗ | 1 | 1 | aadA31 | |||
| In1584∗ | 1 | 1 | estX-6 | gcu116 | ||
| In1585∗ | 1 | 0 | aadA2 | cmlA1g | aadA1a | qacH2 |
| In1586∗ | 1 | 1 | aadA1D13 | |||
Integron gene cassettes are listed in order of arrangement within the DNA. gcu indicates gene cassette of unknown function (hypothetical protein). (∗) indicates a new integron number.