FIG. 8.

Promoter structure of the phenol gene clusters of (A) T. aromatica and (B) G. metallireducens. The intergenic sequence between orf1 and orf11 (regulator gene) in T. aromatica and in G. metallireducens is shown. The ATG start codons are marked in boldface type. Numbers in front of the lines indicate the nucleotide positions within the phenol gene clusters (T. aromatica [GenBank accession number AJ272115] and G. metallireducens, intergenic region between putative ORFs [Joint Genome Institute accession numbers gi|23053807 and gi|23053806]). Shine-Dalgarno sequences are underlined. −24/−12 σ⁵⁴ promoters are shown in grey. Arrows: inverted repeats; box: T. aromatica transcription start; dashed box: G. metallireducens proposed transcription start (bp + 1). The proposed ATG start codon for orf1 of Geobacter was corrected (see the text).