TABLE 1.
Control strains used in study
| Strain designation | Organism | β-Lactamase | Reference or source |
|---|---|---|---|
| R6K | E. coli | TEM-1 | Wyeth Strain Collection |
| GC 1481 | E. coli | SHV-1 | Wyeth Strain Collection |
| J53.2 | E. coli | CTX-M-1 | Wyeth Strain Collection |
| GC 5429 | E. coli | CTX-M-5 | 9 |
| R6N238 | E. coli | OXA-1 | Wyeth Strain Collection |
| GC 1777 | E. coli | OXA-2 | Wyeth Strain Collection |
| GC 1806 | E. coli | OXA-5 | Wyeth Strain Collection |
| GC 7870 | P. mirabilis | PER-1 | Gift of M.-J. Ferraro |
| GC 2809 | E. coli | ACT-1 | 8 |
| GAR 1703 | K. pneumoniae | MIR-1 | Wyeth Strain Collection |
| GC 6202 | E. coli | CMY | Wyeth Strain Collection |
| G52328 | K. pneumoniae | FOX-5 | Gift of G. Jacoby |
| UCLA 14 | K. pneumoniae | DHA-1 | Gift of G. Jacoby |
| GC 3805 | Hafnia alvei | ACC-1 | Wyeth Strain Collection |
| KP1569 | E. coli | KPC-2 | 6 |
| DH5α | E. coli | None | New England BioLabs |