 G WNT6 Wnt family member 6 2B 224,714,217 224,728,557 RGD:9068941G SIX4 SIX homeobox 4 14 59,580,587 59,592,654 RGD:9068941G IRX1 iroquois homeobox 1 5 3,610,229 3,615,279 RGD:9068941G IRX2 iroquois homeobox 2 5 2,776,054 2,777,005 RGD:9068941G IRX3 iroquois homeobox 3 16 53,622,028 53,627,033 RGD:9068941anatomical structure morphogenesis 2521morphogenesis of embryonic epithelium 180embryonic epithelial tube formation 153nephron tubule formation 19specification of nephron tubule identity 4 