or download this
[zwc2101|login2] ~/TALL/ref/HomoloGene $ head homologene.data
3 9606 34 ACADM 187960098 NP_001120800.1
3 9598 469356 ACADM 114557331 XP_524741.2
...
3 7227 38864 CG12262 24660351 NP_648149.1
3 7165 1276346 AgaP_AGAP005662 58387602 XP_315683.2
3 6239 181757 acdh-10 17569725 NP_510788.1