FIG. 2.
Effects of the ΔrimJ and hns651 mutations on papBA transcription. The bars indicate β-galactosidase activities measured in the wild-type (wt) strain DL1504, in the ΔrimJ mutant strain CWZ388, in the hns651 mutant strain DL1947, and in the ΔrimJ hns651 double-mutant strain CWZ403. β-Galactosidase activity was measured as described in Materials and Methods. Error is expressed as 1 standard deviation from the mean.