They encode type II membrane-bound glycoproteins that appear to have exclusive specificity for the donor substrate UDP-galactose; all transfer galactose in a beta1,4 linkage to similar acceptor sugars: GlcNAc, Glc, and Xyl.
Guanosine diphosphate | Uridine diphosphate | Adenosine diphosphate | Uridine phosphorylase | Uridine monophosphate synthetase | Uridine diphosphate galactose | uridine |