ID   2.4.2.61
DE   alpha-dystroglycan beta1,4-xylosyltransferase.
CA   3-O-[Rib-ol-P-Rib-ol-P-3-beta-D-GalNAc-(1->3)-beta-D-GlcNAc-(1->4)-(O-6-
CA   P-alpha-D-Man)]-Thr-[protein] + UDP-alpha-D-xylose = 3-O-[beta-D-Xyl-
CA   (1->4)-Rib-ol-P-Rib-ol-P-3-beta-D-GalNAc-(1->3)-beta-D-GlcNAc-(1->4)-
CA   (O-6-P-alpha-D-Man)]-Thr-[protein] + H(+) + UDP.
CC   -!- This eukaryotic enzyme catalyzes a step in the biosynthesis of the
CC       glycan moiety of the membrane protein alpha-dystroglycan.
CC   -!- It is specific for the second ribitol 5-phosphate in the nascent
CC       glycan chain as acceptor.
DR   Q08CD5, RXLT1_DANRE;  Q9Y2B1, RXLT1_HUMAN;  Q8VDX6, RXLT1_MOUSE;
//