Supplementary Data

Figure S1: Results of querying 123 E. coli K12 operons on 400 bacterial genomes (txt).

Figure S2: Results of querying 123 E. coli K12 operons within its own genome (txt).

Table S1: Percentage of occurrences of the 123 E. coli K12 operons that are significant (xls, txt).

Table S2: Occurrence rate of the 123 E. coli K12 operons in the 400 bacterial genomes (xls, txt).

Table S3: Occurrence rate of genes within significant clusters in the S10 operon (xls, txt).

Table S4: Occurrence rate of genes within significant clusters in the spc operon (xls, txt).

Table S5: Occurrence rate of genes within significant clusters in the alpha operon (xls, txt).

Table S6: Occurrence rate of genes within significant clusters in the frl operon (xls, txt).

Table S7: Percentage of significant clusters in which all genes share the same orientation (xls, txt).

Table S8: Percentage of conserved neighboring gene pairs within significant clusters (xls, txt).

Table S9: Percentage of conserved neighboring cluster pairs (xls, txt).