Accepted name: protein xylosyltransferase
Reaction: UDP-α-D-xylose + [protein]-L-serine = UDP + [protein]-3-O-(β-D-xylosyl)-L-serine
Other name(s): UDP-D-xylose:core protein β-D-xylosyltransferase; UDP-D-xylose:core protein xylosyltransferase; UDP-D-xylose:proteoglycan core protein β-D-xylosyltransferase; UDP-xylose-core protein β-D-xylosyltransferase; uridine diphosphoxylose-core protein β-xylosyltransferase; uridine diphosphoxylose-protein xylosyltransferase; UDP-D-xylose:protein β-D-xylosyltransferase
Systematic name: UDP-α-D-xylose:protein β-D-xylosyltransferase (configuration-inverting)
Comments: Involved in the biosynthesis of the linkage region of glycosaminoglycan chains as part of proteoglycan biosynthesis (chondroitin, dermatan and heparan sulfates).
1.  Stoolmiller, A.C., Horwitz, A.L. and Dorfman, A. Biosynthesis of the chondroitin sulfate proteoglycan. Purification and properties of xylosyltransferase. J. Biol. Chem. 247 (1972) 3525–3532. [PMID: 5030630]
2.  Götting, C., Kuhn, J., Zahn, R., Brinkmann, T. and Kleesiek, K. Molecular cloning and expression of human UDP-D-xylose:proteoglycan core protein β-D-xylosyltransferase and its first isoform XT-II. J. Mol. Biol. 304 (2000) 517–528. [PMID: 11099377]
[EC created 1976, modified 2002, modified 2016]