Table 2. Isolates bearing gene cassettes related to antibiotic resistance or bearing no cassettes (empty class 1 integron).
| RIa | Isolate | Approx length (bp) | Nature of gene cassette | Cassette encoded Function | Ac. No. |
| 0.0 | MB 39 | 1009 | aadA2 | STR | AM997277 |
| MB 43 | 792 | aacA4 | KAN | HE653231 | |
| MB 46 | 1009 | aadA2 | STR | AM997280 | |
| MB 63 | 153 | In0 | Empty class 1 integron | FM958478 | |
| 0.08 | MB 20 | 1009 | aadA1 | STR | MB 32b |
| MB 24 | 1003 | aadA1 | STR | AM991326 | |
| MB 50 | 1009 | aadA1 | STR | MB 32b | |
| MB 57AMB 57B | 1242 (i)973 (ii) | dfrA1-orfB (i)aadA1 (ii) | TMP-Hypothetical (i)STR (ii) | HE653233 (i)HE653234 (ii) | |
| 0.16 | MB 23 | 1009 | aadA1 | STR/SPEC | MB 32b |
| MB 36 | 1009 | aadA1 | STR/SPEC | AM937245 | |
| MB 49 | 792 | aacA4 | KAN | MB43b | |
| MB 52 | 1694 | dfrA28- aadA1 | TMP-STR | FN263373 | |
| MB 64 | 769 | dfrA7 | TMP | MB31b | |
| 0.25 | MB 03 | 1647 | dfrA28-aadA1 | TMP-STR | AM937241 |
| MB 21 | 1569 | dfrA1- aadA1 | TMP-STR | AM937243 | |
| MB 26 | 1571 | dfrA1-aadA1 | TMP-STR | AM991328 | |
| MB 32 | 1009 | aadA1 | STR/SPEC | AM991330 | |
| MB 33 | 1009 | aadA1 | STR/SPEC | AM991333 | |
| MB 42 | 862 | aacA4 | KAN | HE653230 | |
| MB 67 | 1913 | dfrA12-orf40A- aadA2 | TMP-Hypothetical-STR | MB40Ab | |
| MB 77 | 730 | dfrA30 | TMP | MB72b | |
| 0.33 | MR 03 | 737 | dfrA16 | TMP | FN561628 |
| MB 47 | 1569 | dfrA1- aadA1 | TMP-STR | FM179327 | |
| MB 62 | 153 | In0 | Empty class 1 integron | FM998811 | |
| 0.41 | MB 18 | 1048 | aadA5 | STR/SPE | AM937242 |
| MB 31 | 769 | dfrA7 | TMP | HE650981 | |
| MB 40AMB 40B | 1913 (i)704 (ii) | dfrA12- orf40A-aadA2 (i)yrf1 (ii) | TMP-Hypothetical-STR(i)Helicase (ii) | FM179328 (i)AM997278 (ii) | |
| MB 59 | 1543 | dfrA1-aadA1 | TMP-STR | HE653235 | |
| MB 66 | 1009 | aadA1 | STR/SPE | HE650982 | |
| MB 72 | 730 | dfrA30 | TMP | HE650983 | |
| MB 74 | 1242 | dfrA1-orf38 | TMP-Hypothetical | MB38b | |
| MB 75 | 1242 | dfrA1-orf38 | TMP-Hypothetical | MB38b | |
| 0.5 | MB 27 | 1614 | dfrA17-aadA5 | TMP-STR | AM937244 |
| MB 30 | 1664 | dfrA7-aadA5 | TMP-STR | HE650980 | |
| MB 60 | 1556 | dfrA1-aadA1 | TMP-STR | HE653236 | |
| MB 61 | 1913 | dfrA12-orf40A-aadA2 | TMP-Hypothetical-STR | MB40Ab | |
| MB 69 | 1543 | dfrA1-aadA1 | TMP-STR | MB59b | |
| MB 78 | 1694 | dfrA28-aadA1 | TMP-STR | MB52b | |
| MB 82 | 2013 | Oxa1-aadA1 | Bla-STR | HE650986 | |
| SR 19 | 729 | dfrA5 | TMP | FN396373 | |
| OD 05 | 1009 | aadA1 | STR | FN396375 | |
| OD 08 | 1009 | aadA1 | STR | FN396376 | |
| OC 16 | 1664 | dfrA17-aadA5 | TMP-STR | FN396368 | |
| 0.58 | MB 29 | 1657 | dfrA7-aadA5 | TMP-STR | HE650979 |
| MB 34B | 1663 | dfrA17-aadA4 | TMP-STR | AM997275 | |
| MB 37A | 1661 | dfrA17-aadA5 | TMP-STR | AM991329 | |
| MB 53 | 1664 | dfrA17-aadA5 | TMP-STR | FM179325 | |
| MB 73 | 1664 | dfrA7-aadA5 | TMP-STR | bMB30 | |
| OC 78 | 1170 | aac-6′-Ib | STR | FN396372 | |
| 0.66 | MB 25 | 1606 | dfrA17-aadA4 | TMP-STR | AM997274 |
| MB 35 | 3454 | blaIMP-9-aacA4-oxa-10-aadA2 | Kan-Bla-STR | FN178517 | |
| MB 45 | 667 | dfrA30 | TMP | AM997279 | |
| MB 65 | 1556 | dfrA1-aadA1 | TMP-STR | MB60b | |
| MB 76 | 769 | dfrA7 | TMP | MB31b | |
| MB 79AMB 79B | 1167 (i)1009 (ii) | dfrIIe-arr2 (i)aadA1 (ii) | TMP-RMP (i)STR (ii) | HE650984 (i)HE650985 (ii) | |
| OD 10 | 1350 | aadA | STR | FN396374 | |
| OC 24 | 1521 | dfrA17-aadA5 | TMP-STR | FN396369 | |
| OD 21 | 1009 | aadA2 | STR | FN396378 | |
| OD 24 | 1000 | dfrA12 | TMP | FN396377 | |
| 0.75 | OC 74 | 1000 | aac-6′-Ib | STR | FN396370 |
| 0.83 | MB 38 | 1241 | dfrA1-orf38 | TMP-Hypothetical | AM997276 |
| MB 68 | 1543 | dfrA1-aadA1 | TMP-STR | MB59b | |
| OC 75 | 1400 | dfrA17 | TMP | FN396371 | |
| 0.91 | NV 66 | 1009 | aadA2 | STR | FN396367 |
a
Resistance index (RI); b gene sequence identical to that isolate.
TMP, trimethoprim; STR, streptomycin; KAN, kanamycin; SPEC, spectinomycin.