TABLE 1.
Strains used in this study
| Strain | Description | Reference, source, or constructiona |
|---|---|---|
| CP1250 | Rx derivative, low β-galactosidase activity; hex malM511 str-1 bgl-1; Hex− Mal− Smr Bga− | 33 |
| CP1361 | CP1250, but ΔclpX::erm slx-1; Emr | 23 |
| CP1500 | Rx derivative; hex novo-r brya-r str-r1 ery-r2 ery-r6; Novr Emr Strr | 4 |
| CP1973 | CP1361, but clpX+; Ems | This study |
| CP2008 | CP1250, but Δspr1630::kan; Kanr | This study |
| CP2086 | R6, but novo-r; Novr | R6 × CP1500 |
| CP2087 | R6, but Δspr1630::kan; Kanr | R6 × CP2008 |
| CP2088 | R6, but Δspr1630 ΔclpX::erm; Kanr Emr | CP2087 × CP1361 |
| CP2089 | TIGR4, but Δspr1630::kan; Kanr | TIGR4 × CP2008 |
| R6 | Rough derivative of D39 | 14 |
| TIGR4 | Serotype 4 isolate | 42 |
a
Strain construction by transformation is indicated as recipient × DNA donor.