Mouse-Rat-Human non-redundant set of Eukaryote Gene Orthologs Release 8 (EGO8)

The ingroup/outgroup definitions are as follows:
ingroup1 = Mus musculus
ingroup2 = Rattus norvegicus
outgroup = Homo sapien

The ratios are computed as follows:
ratio1 - dist(mouse,rat)/dist(mouse,human)
ratio2 - dist(mouse,rat)/dist(rat,human)
ratio3 - dist(mouse,human)/dist(rat,human)

Supporting-species-divergence (ssd) classification:
class 1 - ssd-ortholog
class 2 - uncertain ssd-ortholog
class 3 - non-ssd-orthologs (probable paralogs)


Each file record is composed of the following tab-delimited fields:

1) 	ortholog file set identifier (for internal use)
2) 	mouse TC id - ingroup1 for the putative ortholog set
3) 	rat TC id 	- ingroup2 for the putative ortholog set
4) 	human TC id - outgroup for the putative ortholog set
5) 	ratio 1
6) 	ratio 2
7) 	ratio 3
8) 	ssd-ortholog classification
9) 	mouse in-paralog TC candidates (each entry is delimited by ";")
10) 	rat in-paralog TC candidates (each entry is delimited by ";")