Figure 7: The P21A peptide inhibits Rgg-dependent transcription by SHP144.
Decreasing ratios of Δshp144comP21A and wild type (WT) supernatants were incubated with a pellet of reporter strain Pshp144 ∷ lacZ-Δshp144, and the Pshp144 driven β-galactosidase activity was measured (red columns). As a control dilutions of wild type supernatant in Δshp144 supernate were used (black columns). Comparisons are made relative to shp144 transcription levels in culture containing a mixture of WT and Δshp144 supernates. * P<0.05 and ‘ns’ non- significant (n=3).