TABLE 4.
Clonal distribution of MSSA strains of major MRSA lineages according to efficiency of transformation with pYK20
| Clonal complex | Strainsa
|
|||
|---|---|---|---|---|
| Total no. | No. with the following efficiency of transformation:
|
|||
| ≤10−11 | 10−10 to 10−8 | 10−7 | ||
| CC9 | 4 (4) | 0 | 4 (4) | 0 |
| CC12 | 7 | 3 | 4 | 0 |
| CC15 | 5 (1) | 4 (1) | 1 | 0 |
| CC25 | 5 (2) | 2 | 3 (2) | 0 |
| CC51 | 4 (1) | 2 | 2 (1) | 0 |
| ST20 | 2 (2) | 1 (1) | 1 (1) | 0 |
| ST59-296 | 3 | 3 | 0 | 0 |
| ST97 | 2 (1) | 1 | 1 (1) | 0 |
| ST101 | 2 | 0 | 1 | 1 |
| ST145-10 | 2 (1) | 2 (1) | 0 | 0 |
| Otherb | 14 (7) | 8 (6) | 5 (1) | 1 |
| Total (%) | 50 (100) | 26c (52) | 22 (44) | 2 (4) |
a
Values in parentheses are numbers of β-lactamase-producing strains.
b
Other singletons are ST6, -7, -17, -19, -49, -50, -55, -182, -248, -264, -266, -301, -517, and -529.
c
One or more transformants were obtained at this low efficiency for nine strains.