Table 2. Summary of three types of feed-forward loops based on MI-related data.

		Number of nodes				Number of links
Motif	Number of FFLs	Genes	miRNAs	TFs	Total	miRNA-gene	miRNA-TF	TF-gene	TF-miRNA	Total
TF-FFL	236	109	29	33	171	191	-	184	65	440
miRNA-FFL	902	227	55	129	411	530	358	594	-	1482
Composite-FFL	94	50	9	13	72	62	18	85	18	183
Total	1232	256	60	141	457	621	376	786	83	1866