Oligomer enrichment on UCRs. Each cluster (column) shows distinct TFBS patterns. Association of 8-mers and clusters is depicted in dendrograms. Only 8-mers with p-value<1E-4 are shown by the heatmap. The most related TFBSs of each 8-mer are shown in the brackets on the right side. TFs with developmental functions indicated by NCBI Gene  or GeneCards  are colored blue.