alpha-1,3-Galactosyltransferase (a1,3GalT)

alpha-1,3-Galactosyltransferase (a1,3GalT) (GGTA1) catalyzes the generation of the α-gal glycan via the transfer of a galactose (Gal) in α1-3 linkage, from a uridyl-diphosphate (UDP) donor onto the N-acetyllactosamine (Galβ1,4GlcNAc-R) of glycoproteins. alpha-1,3-Galactosyltransferase (a1,3GalT) is responsible for the synthesis of the α-galactose (α-Gal) epitope found in most mammalian species.