FIG. 5.

Promoter region of pstS and comparison of putative Pho box sequences. (A) Sequence upstream of the pstS gene. Pho box-like sequences are indicated by numbered arrows, with the consensus E. coli Pho box sequence shown above the Caulobacter DNA sequence for comparison. The stop codon (TGA) of the upstream PBP1A gene is shown in boldface. The predicted N-terminal amino acid sequence of PstS is indicated. The sequence shown is to the site of miniTn5lacZ insertion. (B) Comparison of Pho box-like sequences found upstream of pstS and pstC with the consensus Pho box sequence of E. coli.