Table 2 Bacterial strains and plasmids used in this study
Strain or plasmid | Characteristics | Source or reference |
|---|---|---|
Strains | ||
 SL1344 | Serovar Typhimurium, wild-type | [38] |
 SL1344ΔsseK2 | sseK2 deletion mutant | In this study |
 χ7213 | χ7213, containing plasmid of pREsseK2, Cmr | In this study |
Plasmids | Â | Laboratory stock |
 pBluescriptIISK (+) | Phagemid cloning vector, oriCOLE1 oriF1(+) bla lacZa | In this study |
 pBSKsseK2 | pBluescriptIIKSt, sseK2 | [39] |
 pRE112 | pGP704 suicide plasmid, pir dependent, oriT, oriV, sacB, Cmr | In this study |
 pREΔsseK2 | pRE112 dervative containing ssek2 fused in-frame, Cmr | Laboratory stock |
 pBR322 | oriColE1, AmprTcr | In this study |
 pBR322-sseK2 | pBR322 carrying the full sseK2gene (Ampr) |  |