Colour map of combined motifs observed in all human promoters from groups b and c. The map displays the motif occurrences in the two combined human sets. Columns represent unique motifs (r < 0.6) in the merged set and rows are the RefSeqs from the two sets. Similar motifs from the two sets are denoted and displayed with the names of the motifs joined, e.g. the first motif is common in both sets as motif c1 h in group c and b1 h in group b. Promoters unique to the individual sets are suffixed by the name of the corresponding group. If several motifs from a data set are similar, only the first one is shown. Sequence for Myozenin 2 (NM_016599) was omitted as the combined motif e-value was not significant in this sequence (e-value > 10).