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. 2007 Aug 24;189(21):7539–7548. doi: 10.1128/JB.00953-07

FIG. 1.

FIG. 1.

Transcription control regions for the yeaR-yoaG operon (A), nnrS gene (B), and ytfE gene (C). The nucleotide sequences are the sequences of E. coli K-12, C. rodentium ICC168, S. enterica LT2, S. oneidensis MR-1, and Shewanella sp. MR-4. The experimentally determined transcription initiation sites, designated +1, are shown for the E. coli yeaR-yoaG operon (this study) and for the E. coli ytfE gene (6). Consensus sequences are shown for the promoter −10 and −35 regions and for the NarL and NsrR protein binding sites. Nucleotides that match the promoter and NarL binding site consensus sequences are indicated by black and gray backgrounds, respectively. Nucleotides that match the NsrR binding site consensus sequence are enclosed in boxes. Site-specific alterations in the yeaR-yoaG operon control region sites for NarL and NsrR proteins are shown. Dashes indicate gaps introduced to align the sequences with respect to their −35 and −10 elements.