FIG. 2.

Nucleotide sequence of the rpoN promoter. The transcriptional start of rpoN was determined by primer extension analysis; the oligonucleotide used for primer extension is underlined. The 5′ ends of transcripts are marked by arrows and +1. Putative −35 and −10 motifs are boxed. RBS, ribosome binding site. The promoter regions identical to that of P. aeruginosa are printed in lowercase letters. The C-terminal and N-terminal amino acid sequences of ORF241 and RpoN, respectively, are given below the nucleotide sequence in one-letter code.