The MSigDB Predicted Promoter Motifs  ontology contains sets of genes that share a transcription factor binding site in their promoters. The binding sites are as predicted based on definitions from the TransFac database (version 7.4) .
Statistics can now be found in the footers of each table in the GREAT web output.
All ontology data was downloaded and built between Oct 14, 2011 and Feb 18, 2012.
GREAT v1.8 MSigDB Predicted Promoter Motifs statistics are available here.
GREAT v1.2 MSigDB Predicted Promoter Motifs statistics are available here.
Subramanian, A., et al. Gene set enrichment analysis: a knowledge-based approach for interpreting genome-wide expression profiles, Proc Natl Acad Sci U S A. 2005 Oct 25; 102(43):15545-50.
Wingender, E., et al. TRANSFAC: an integrated system for gene expression regulation, Nucleic Acids Res. 2000 Jan 1; 28(1):316-9.