FIG. 5.

Graphical comparison of the H₂O₂ stimulon and the effects of the perR mutation. The log₂ of the induction ratio at 3 min after exposure to 58 μM H₂O₂ (x axis) is compared with the log₂ of the ratio of induction in the perR mutant to induction in the wild type (y axis). Members of the PerR and σ^B regulons are indicated by solid diamonds and open triangles, respectively. The three most strongly regulated members of the PerR regulon are labeled. Note that PerR-regulated genes are in the upper right quadrant (these genes derepressed in the perR mutant and peroxide inducible in the wild type).