TABLE 1.

Bacterial strains used in this study

Strain no.Relevant genotypeSource/referencea
3140BW25113 katE::kanCGSC# 9453 (4)
3144BW25113 ΔsodAThis work, by antibiotic marker excision from CGSC# 10798
3145BW25113 ΔsodBThis work, by antibiotic marker excision from CGSC# 9402
3149BW25113 sodA::kan ΔsodBThis work, by P1-medicated transduction from CGSC# 10798 to 3145
3156BW25113 ΔsodA ΔsodBThis work, by antibiotic marker excision from 3149
3157BW25113 ΔkatGThis work, by antibiotic marker excision from CGSC# 10827
3163BW25113 ΔkatG katE::kanThis work, by P1-medicated transduction from 3140 to 3157
3200BW25113 ΔahpCThis work, by antibiotic marker excision from CGSC# 8713
3201BW25113 ΔkatG ΔkatEThis work, by antibiotic marker excision from 3163
3202BW25113 ΔkatEThis work, by antibiotic marker excision from 3140
BW25113Wild typeCGSC# 7636 (4)
CSH7Wild typeRichard D'Ari (26)
CSH57AWild typeRichard D'Ari (26)
DKsodBBW25113 ΔsodBJames Collins (13)
GC4468Wild typeRichard D'Ari (7)
QC772GC4468F sodA::CmRichard D'Ari (7)
QC773GC4468F sodB::KanRichard D'Ari (7)
QC774GC4468F sodA::Cm sodB::KanRichard D'Ari (7)
UM1CSH7 katE1 katG14bRichard D'Ari (26)
UM2CSH57A katE2 katG15bRichard D'Ari (26)
  • a CGSC#, Coli Genetic Stock Center strain number. All CGSC strains were obtained from Yale University Coli Genetic Stock Center.

  • b katG14 encodes a protein that is deficient in catalase but proficient in peroxidase activity, while katG15 encodes a protein deficient in both enzymatic activities.