Orthology established by Rosemberg et al., 2010 (6 genes)

Orthology for entpd1 ( Chr: 12 )
Orthology for entpd3 ( Chr: 16 )
Orthology for entpd4 ( Chr: 8 )
Orthology for entpd5a ( Chr: 17 )
Orthology for entpd6 ( Chr: 17 )
Orthology for entpd8 ( Chr: 6 )