2.4.1.133	xylosylprotein 4-beta-galactosyltransferase	glycosaminoglycan-protein linkage region biosynthesis	-	
2.4.1.134	galactosylxylosylprotein 3-beta-galactosyltransferase	glycosaminoglycan-protein linkage region biosynthesis	-	
2.4.1.135	galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase	glycosaminoglycan-protein linkage region biosynthesis	-	
2.4.2.26	protein xylosyltransferase	glycosaminoglycan-protein linkage region biosynthesis	-