Table 3.

Gene structure comparison between human and mouse.

	OG Pairs Conserved in Hs and Mm (282)		Human OG Pairs Adjacent in Mm (226)		Mouse OG Pairs Adjacent in Hs (171)		Non-Overlapping Genes
	Human	Mouse	Human	Mouse	Human	Mouse	Human (16385)	Mouse (15640)
Average Gene Length	68.5 kb	58.6 kb	49.3 kb	31.4 kb	35.5 kb	31.4 kb	55.4 kb	39.6 kb
Average Exon Number	12.4	12.2	11.3	10.8	11.45	11.4	10.2	9.0
UTR Overlap	174	200	184	-	-	154	-	-
CDS Overlap	108	82	42	-	-	16	-	-

The number of overlapping gene pairs in each analyzed dataset is reported in brackets. CDS overlaps refer to the overlapping genes whose CDS coordinates are superimposed, while UTR overlaps refer to those cases where the gene coordinates (calculated from transcript start to transcript end) are superimposed.