Reaction: UDP-α-D-galactose + [procollagen]-(5R)-5-hydroxy-L-lysine = UDP + [procollagen]-(5R)-5-O-(β-D-galactosyl)-5-hydroxy-L-lysine
Other name(s): hydroxylysine galactosyltransferase; collagen galactosyltransferase; collagen hydroxylysyl galactosyltransferase; UDP galactose-collagen galactosyltransferase; uridine diphosphogalactose-collagen galactosyltransferase; UDPgalactose:5-hydroxylysine-collagen galactosyltransferase; UDP-galactose:procollagen-5-hydroxy-L-lysine D-galactosyltransferase; UDP-α-D-galactose:procollagen-5-hydroxy-L-lysine D-galactosyltransferase
Systematic name: UDP-α-D-galactose:[procollagen]-(5R)-5-hydroxy-L-lysine 5-β-D-galactosyltransferase (configuration-inverting)
Comments: Probably involved in the synthesis of carbohydrate units in complement (cf EC 126.96.36.199 procollagen glucosyltransferase).
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 9028-07-3
1. Bosmann, H.B. and Eylar, E.H. Glycoprotein biosynthesis: the biosynthesis of the hydroxylysine-galactose linkage in collagen. Biochem. Biophys. Res. Commun. 33 (1968) 340-346. [PMID: 5722225]
2. Kivirikko, K.I. and Myllyla, R. In: Hall, D.A. and Jackson, D.S. (Eds.), International Review of Connective Tissue Research, vol. 8, Academic Press, New York, 1979, p. 23.
3. Schegg, B., Hulsmeier, A.J., Rutschmann, C., Maag, C. and Hennet, T. Core glycosylation of collagen is initiated by two β(1-O)galactosyltransferases. Mol. Cell Biol. 29 (2009) 943-952. [PMID: 19075007]