TABLE 2.
Antimicrobial susceptibilities, IEF of β-lactamases, and plasmid sizes of K. pneumoniae clinical isolates and their transconjugants
| Strain | MIC (μg/ml)a
|
Isoelectric point(s) | Plasmid size(s) (kb) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| AMP | PIP | CEP | CFX | CTX | CAZ | ATM | IMP | |||
| KpY25 | >512 | >512 | 512 | 16 | 64 | 256 | 512 | <1 | 7.6, 5.9, 8.2 | |
| Transconjugant | >512 | 128 | 8 | 4 | 2 | 2 | <1 | 5.9 | 77 | |
| KpS15 | >512 | >512 | 512 | 8 | 64 | 32 | 32 | <1 | 7.6, 5.4, 5.9 | |
| Transconjugant | >512 | 64 | 16 | 4 | 4 | 4 | 2 | 5.9 | 77 | |
| KpB35 | >512 | 512 | 256 | 4 | 32 | 16 | 4 | <1 | 7.6, 5.4, 5.9 | |
| Transconjugant | >512 | >512 | 32 | 4 | 32 | 8 | 8 | 5.4, 5.9 | 81 | |
| KpY36 | >512 | >512 | 64 | 4 | 16 | 16 | 16 | <1 | 7.6, 5.4, 5.9 | |
| Transconjugant | >512 | 512 | 32 | 4 | 8 | 4 | 2 | 5.4, 5.9 | 100 | |
| KpY9 | >512 | 512 | 128 | 4 | 64 | 8 | 4 | <1 | 7.6, 5.4, 5.9 | |
| Transconjugant | >512 | 512 | 32 | 4 | 16 | 4 | 2 | 5.4, 5.9 | 81 | |
| KpY10 | >512 | 512 | 128 | 4 | 32 | 8 | 8 | <1 | 7.6, 5.4, 5.9 | |
| Transconjugant | >512 | 128 | 4 | 4 | 4 | 4 | 2 | 5.4 5.9 | 81 | |
| KpY40 | >512 | >512 | 256 | 16 | 32 | 16 | 32 | <1 | 7.6, 5.4, 5.9 | |
| Transconjugant | >512 | 256 | 64 | 4 | 32 | 16 | 2 | 5.4, 5.9 | 100 | |
| KpS37 | >512 | >512 | 512 | 4 | <1 | 8 | <1 | <1 | 7.6, 5.4, 5.9 | |
| Transconjugant | >512 | >512 | 512 | 32 | <1 | 8 | 2 | 5.4, 5.9 | 71 | |
| KpY27 | >512 | 512 | 64 | 16 | 64 | 16 | 32 | <1 | 7.6, 5.4, 5.9 | |
| Transconjugant | >512 | 128 | 16 | 4 | 4 | 8 | 1 | 5.4, 5.9 | 100 | |
| KpS36 | >512 | 512 | 512 | 4 | 32 | 16 | 8 | <1 | 7.6, 5.4 | |
| Transconjugant | >512 | >512 | 128 | 4 | 16 | 8 | 2 | 7.6, 5.4 | 71 | |
| KpS18 | >512 | 512 | >512 | >512 | 128 | 128 | 512 | <1 | 7.6, 5.4, 5.9, 8.0 | |
| Transconjugant | >512 | 128 | 32 | 4 | 4 | 8 | 2 | 5.4, 5.9 | 100 | |
| KpY5 | >512 | 512 | >512 | >512 | >512 | 512 | 512 | 32 | 7.6, 5.4, 5.9, 8.0 | |
| Transconjugant | >512 | 512 | 32 | 4 | 16 | 8 | 2 | 5.4, 5.9 | 100 | |
| KpY26 | >512 | 512 | 128 | 8 | 64 | 256 | 512 | <1 | 5.9, 7.6, 8.2 | |
a
Abbreviations: PIP, piperacillin; CEP, cephalothin; CFX, cefoxitin; CTX, cefotaxime; CAZ, ceftazidime; ATM, aztreonam; IMP, imipenem.