TABLE 1.
Strains and plasmids
| Strain or plasmid | Description | Reference or source |
|---|---|---|
| Strains | ||
| S. Typhi | ||
| Ty2 | S. Typhi wild type | ATCC 19430 |
| QT74 | Ty2ΔompR::Kanr | This study |
| Plasmids | ||
| pCR2.1 | Cloning vector | Invitrogen |
| pBluescript SK+ | Cloning vector | Stratagene |
| pEGFP | GFPmut1 variant-expressing vector | Clontech |
| pQT13 | pGP704::ompRFR1 | This study |
| pQT17 | pGP704::ompRFR1:: ompRFR2 | This study |
| pQT19 | pGP704::ompRFR1:: ompRFR2::Kmr | This study |
| pQT27 | pEGFP::viaB promoter | This study |
| pQT28 | pBluescript SK+::egfp::viaB promoter | This study |
| pQT50 | pBluescript KS::ompR | This study |