TF Name stands for transcription factor name; Known Motif stands for the known binding sites corresponding to the transcription factors in TF Name column; Predicted Motifs stands for the motifs predicted by EXMOTIF; Num-Motifs gives the final (original) number of motifs extracted (final is after pruning those motifs that are also frequent in the ORF regions); Ranking stands for the Z-score ranking based on support/weighted support.