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Identification of the SigF promoter consensus. Visually identified promoter motifs upstream of 49 SigF-regulated genes (from microarray analysis) were used for a genome-wide virtual footprint analysis. (A) Promoter spacing variation between the −10 and −35 elements in the training set. (B) Number of promoters sorted into categories according to their distance to the start codon. (C) Derived SigF promoter consensus determined using the WebLogo tool.
