FIG. 3.

Comparison of the two PcaU binding sites characterized here and the binding site of the closest homologue of PcaU, PobR from Acinetobacter sp. strain ADP1. Genes are represented as boxes with arrowheads inside indicating the direction of transcription. Arrows above sequence, sequence repetitions. Sequence identity between the two PcaU binding sites is highlighted by shaded boxes; identity between the pca and pob intergenic binding sites is shown by small open boxes. Large open boxes indicate the areas protected by the respective regulators in DNase I footprinting experiments.