lactosylceramide 4-alpha-galactosyltransferase activity
Catalysis of the reaction: beta-D-galactosyl-(1,4)-D-glucosylceramide + UDP-galactose = alpha-D-galactosyl-(1,4)-beta-D-galactosyl-(1,4)-D-glucosylceramide + UDP.
GO:0035250
UDP-galactosyltransferase activity
is_a
Gal-beta-(1,4)-Glc-beta-1-Cer alpha-(1,4)-galactosyltransferase activity
related
Gal-beta-1,4-Glc-beta-1-Cer alpha-1,4-galactosyltransferase activity
related
UDP-galactose:lactosylceramide 4II-alpha-D-galactosyltransferase activity
related
globotriaosylceramide/CD77 synthase activity
narrow
histo-blood group P(k) UDP-galactose activity
narrow
histo-blood group Pk UDP-galactose
related
lactosylceramide 4-a-galactosyltransferase activity
exact