TABLE 1.
Bacterial strains
| Species and strain | β-lactamase(s) produceda | Description | Sourcec or reference |
|---|---|---|---|
| K. pneumoniae | |||
| CL 5188 | TEM-10, SHV-1 | Clinical isolate | J. P. Quinn |
| CL 5189 | TEM-10, SHV-1 | Clinical isolate | J. P. Quinn |
| CL 5128 | TEM-5 | Clinical isolate | G. Jacoby |
| CL 5196 | TEM-10 | Clinical isolate | J. P. Quinn |
| CL 5203 | Unchar. ESBLb | Clinical isolate | C. Urban |
| CL 5212 | Unchar. ESBLb | Clinical isolate | C. Urban |
| E. coli | |||
| CL 5121 | SHV-1 | Clinical isolate | G. Jacoby |
| CL 5190 | TEM-10 | Clinical isolate | J. P. Quinn |
| CL 5115 | TEM-1 | Clinical isolate | G. Jacoby |
| CL 5120 | TEM-7 | Clinical isolate | G. Jacoby |
| CL 5197 | TEM-12 | Clinical isolate | J. P. Quinn |
| MB5503 | Bush group 1 | Strain LS619 (envA+) | 28 |
| DH5α | Bush group 1 | F− φ80 ΔlacZ ΔM15 Δ(lacZYA-argF)U169 deoR recA1 endA1 hsdR17(rK− mK+) supE44 λ− thi-1 gyrA96 relA1 | BRL |
| LS641 | Bush group 1 | Resistant to fusidic acid | K. Young and L. L. Silver, MRL |
| MB4903 | Bush group 1 | Strain LS584 | 28 |
| KN126 (MB4303) | Bush group 1 | 14 |
a
No additional β-lactamases are known to be produced.
b
Enzymes have not been characterized; however, since these strains and those included in studies by Urban et al. (26) have a common origin, it is inferred that they carry the TEM-26 enzyme (26a). Unchar., uncharacterized.
c
J. P. Quinn is at Columbus Hospital, Chicago, Ill., G. Jacoby is at Massachusetts General Hospital, Boston, Mass., and C. Urban is at New York Hospital Medical Center, New York, N.Y.