Figure 3From: SIGffRid: A tool to search for sigma factor binding sites in bacterial genomes using comparative approach and biologically driven statisticsGrouping of pairs of interesting words found in promoter regions according to pairs of hits. From the conservation of pairs of words in the two bacteria (on the left of the Figure), we deduce the sets of sequences SS1 and SS2 – one for each bacterium – sharing a given pair of patterns.Back to article page