Figure 4.

Predicted TFBS abundance in operons. Transcription factor binding site (TFBS) abundance in the upstream intergenic regions of intra-operonic genes with a Zop,i greater than μop,1 + σop,1 (OIG) and genes with a Zop,i less than μop,1 - σop,1 (NOIG) when using (a) the documented S. coelicolor operon data set reduced to genes that have an upstream intergenic distance greater than 0, (b) a random selection from documented S. coelicolor operons, (c) Li et al.'s [17] TFBS prediction on documented E. coli operons, and (d) our TFBS prediction on documented E. coli operons. NOIG, non-over-represented intra-operonic genes; OIG, over-represented intra-operonic genes.

Laing et al. Genome Biology 2006 7:R46   doi:10.1186/gb-2006-7-6-r46
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