FIG. 3.
Promoter and transcription terminator sequences. The sequences of two possible σE-specific promoters before gene 1 and one possible σE-specific promoter before gene 5 are underlined (σE-specific promoter consensus sequence = ATa-16 bases-cATAca-T). The sequences of putative intrinsic transcription terminators after genes 4 and 6 are shown. The inverted arrows and underlined T-rich regions indicate the sequences that specify terminator hairpins and U-rich tracts, the elements required for intrinsic termination of transcription. The start codon (ATG) of the gene downstream of each promoter and the stop codon (TAA or TGA) of the gene upstream of each intrinsic terminator are italicized. nts, nucleotides.