Table 3. Comparison of the distribution of selected resistance genes among different lineages of MRSA strains analyzed in CGH microarray.
| Resistance gene | Gene description | Cluster No. | Number of positive isolates (%) | |||
| ST239 | ST5 | ST59 | ST9 | |||
| N = 24 | N = 5 | N = 3 | N = 5 | |||
| mecA | penicillin binding protein 2 prime | C11 | 24 (100) | 3 (60) | 2 (66.7) | 5 (100) |
| aadD | kanamycin nucleotidyltransferase | C10 | 0 | 1 (20) | 0 | 5 (100) |
| aphA | phosphotransferase A | – a | 24 (100) | 5 (100) | 3 (100) | 5 (100) |
| ermA | rRNA methylase | C11, C12 | 24 (100) | 2 (40) | 0 | 0 |
| tetM | tetracycline resistance protein | C4 | 24 (100) | 2 (40) | 0 | 0 |
| dfrA | dihydrofolate reductase | – | 24 (100) | 5 (100) | 3 (100) | 5 (100) |
| ant(9) | O-nucleotidylltransferase | C11, C12 | 20 (83.3) | 0 | 2 (66.7) | 1 (20) |
| isaA | immunodominant antigen A | – | 24 (100) | 5 (100) | 3 (100) | 5 (100) |
| msrA | methionine sulfoxide reductase A | – | 24 (100) | 5 (100) | 3 (100) | 5 (100) |
| msrB | methionine sulfoxide reductase B | – | 24 (100) | 5 (100) | 3 (100) | 5 (100) |
a
Resistance genes were not located at the reported gene clusters.