Table 1.

E. coli strains used in this study

StrainGenotype or phenotypeReference or source
GASP strain
 ZK126W3110 tna2 ΔlacU169; G0 6
 ZK819ZK126 rpoS819 rpsL Smr; GI 40
 ZK820ZK126rpoS819 gyrA Nalr; GI 40
 ZK1141ZK819 sgaA sgaB sgaC; GII 38
 ZK2552ZK819 ilvGMEDA + (spontaneous suppressor) Valr This study
 ZK2553ZK819bgl + (spontaneous suppressor) Bgl+ This study
 ZK2554ZK1141ilvGMEDA + (same allele as in ZK2552) Valr This study
 ZK2555ZK1141bgl + (spontaneous suppressor) Bgl+ This study
 ZK2557ZK2553rpoS + This study
 ZK2559ZK2553sgaB This study
 ZK2561ZK2553sgaA This study
 ZK2563ZK2553sgaC This study
 ZK2564ZK2553 sgaA sgaB sgaC This study
 ZK2618ZK1141trpB::Tn10Tcr This study
Other strains
 CAG12173MG1655cysC95::Tn10Tcr 31
 CAG18501MG1655rbsD::Tn10Tcr 31
 CAG18528MG1655zbj-3110::Tn10Kanr 31
 KER176 rpsL lipA150::Tn1000dKanr 35
 NU1107VJS433serC::mini-MudI194 Kanr 14
 ZK173MB2 (Hfr Δgal trpB::Tn10 proC::Tn5 lacU169)Lab stock
 ZK1000ZK126 ΔrpoS::Kanr 4