Figure 2

Doubling time of E. coli ΔssrA or ΔsmpB mutants expressing SmpB^HpWT, SsrA^HpWT or mutants. Doubling times were calculated for E. coli strains expressing SmpB^Hp, SsrA^Hpand different mutant versions of SsrA^Hpfrom plasmids. Doubling times (g values) correspond to the mean generation time. As a control, growth complementation of the E. coli ΔssrA with Ec-ssrA is presented. Empty vector corresponds to a vector without insert.