FIGURE 4.

The effects of replacement mutations and hns deletion on the β-galactosidase produced by a FimB-LacZ fusion in the presence and absence of SlyA. A, effects of mutations rm35, rm39, and rm40 in the wild type (dark bars) and ΔslyA mutant (light bars). Strains BGEC905, KCEC1243, KCEC1831, KCEC1854, KCEC2014, KCEC2016, KCEC2020, and KCEC2022 were used. B, effect of an hns::mTn10 mutation in the presence of the wild type (dark bars) or deleted (light bars) slyA gene. Strains BGEC905, KCEC1243, KCEC755, and KCEC1300 were used. Error bars and experimental conditions are described in Fig. 2.