Tags: Enzyme.
In enzymology a xylosylprotein 4-beta-galactosyltransferase (EC 2.4.1.133) is an enzyme that catalyzes the chemical reactionUDP-galactose + O-beta-D-xylosylprotein UDP + 4-beta-D-galactosyl-O-beta-D-xylosylproteinThus the two substrates of this enzyme are UDP-galactose and O-beta-D-xylosylprotein whereas its two products are UDP and 4-beta-D-galactosyl-O-beta-D-xylosylprotein.This enzyme belongs to the family of glycosyltransferases specifically the hexosyltransferases.