ID   2.4.2.42
DE   UDP-D-xylose:beta-D-glucoside alpha-1,3-D-xylosyltransferase.
AN   beta-glucoside alpha-1,3-xylosyltransferase.
AN   UDP-alpha-D-xylose:beta-D-glucoside 3-alpha-D-xylosyltransferase.
CA   3-O-(beta-D-glucosyl)-L-seryl-[EGF-like domain protein] + UDP-alpha-D-
CA   xylose = 3-O-[alpha-D-xylosyl-(1->3)-beta-D-glucosyl]-L-seryl-[EGF-like
CA   domain protein] + H(+) + UDP.
CC   -!- The enzyme, found in animals and insects, is involved in the
CC       biosynthesis of the alpha-D-xylosyl-(1->3)-alpha-D-xylosyl-(1->3)-
CC       beta-D-glucosyl trisaccharide on epidermal growth factor-like (EGF-
CC       like) domains.
CC   -!- When present on Notch proteins, the trisaccharide functions as a
CC       modulator of the signaling activity of this protein.
CC   -!- Formerly EC 2.4.2.n2.
DR   Q5ZKI6, GXLT1_CHICK;  Q5SP46, GXLT1_DANRE;  Q4G148, GXLT1_HUMAN;
DR   Q3UHH8, GXLT1_MOUSE;  Q6GX83, GXLT1_RAT  ;  A0PJZ3, GXLT2_HUMAN;
DR   Q810K9, GXLT2_MOUSE;  Q6DE37, GXLT2_XENLA;
//