ID   2.4.1.134
DE   galactosylxylosylprotein 3-beta-galactosyltransferase.
AN   galactosyltransferase II.
AN   uridine diphosphogalactose-galactosylxylose galactosyltransferase.
CA   3-O-(beta-D-galactosyl-(1->4)-beta-D-xylosyl)-L-seryl-[protein] + UDP-
CA   alpha-D-galactose = 3-O-(beta-D-galactosyl-(1->3)-beta-D-galactosyl-
CA   (1->4)-beta-D-xylosyl)-L-seryl-[protein] + H(+) + UDP.
CC   -!- Involved in the biosynthesis of the linkage region of
CC       glycosaminoglycan chains as part of proteoglycan biosynthesis
CC       (chondroitin, dermatan and heparan sulfates).
DR   Q96L58, B3GT6_HUMAN;  Q91Z92, B3GT6_MOUSE;  Q9USX0, PVG3_SCHPO ;
DR   Q9N491, SQV2_CAEEL ;
//