TABLE 1.
Bacterial strains used in this study
| Strain designationa | Species and strain | Genotype/description | Source |
|---|---|---|---|
| G255 | S. enterica serovar Typhimurium LT2 | Wild type | Lab collection |
| RW138/G478 | E. coli K-12 | recA galK lacZ(ochre) Spcr (λ cIts857 λ dgal-138 cIts857) | R. Weisberg |
| MA8507/G754 | S. enterica serovar Typhimurium LT2 | Gifsy-1− Gifsy-2− Fels-2− | L. Bossi |
| MA8508/G755 | S. enterica serovar Typhimurium LT2 | Gifsy-1− Gifsy-2− Fels-2− Fels-1Δ(int-attR)::Camr | L. Bossi |
| G889 | E. coli K-12 N99 | λ cIts857 virr | J. Gardner |
| SDT2679 | S. enterica serovar Typhimurium LT2 | ΔFels-1::(frt::Kanr::frt) | Lab collection |
| SDT2739 | S. enterica serovar Typhimurium LT2 | MA8507 (Gifsy-1− Gifsy-2− Fels-2−) ΔFels-1::frt | Lab collection |
| SDT2704 | S. enterica serovar Typhimurium LT2 | P22 lysogen | Lab collection |
| N6377/G158 | E. coli K-12 | C600 thr leu thi pro gal+ (chlD-pgl)Δ8/λ int+xis+ Δ(SalI-XhoI) cI857 (cro-chl(A))ΔH1 | A. Oppenheim via H. Nash |
| EDT1084 | E. coli K-12 | N6377/pLR110 | This study |
a
The Segall lab strain designation is given after the strain designation from the lab of origin.