Promoter enrichment analysis for overrepresentation of conserved TF binding sites within the LEW-upregulated and PVG-upregulated clusters.

The 9 TFs whose binding site profiles were significantly enriched in the 13 genes described in Table 3as well as observed in the 596 selected genes with less stringent criteria are presented.*P-value indicated the significance of TF motif enrichment in the gene set relative to that in the background.**Enrichment factor values represent the frequency of the TF motif in a gene set divided by its frequency in the background set and were calculated by PRIMA program.