IGb3 is an alias for the gene, Alpha 1,3-galactosyltransferase 2, in humans. Other names include: alpha 1,3-galactosyltransferase 2 synthase; isoglobotriaosylceramide synthase; A3GALT2P; IGBS3S. This gene shares homology with other species, including: Mouse, Rat.