B4GALNT1 Monoclonal Antibody for Western Blot, IHC (P), Flow, ELISA GM2 and GD2 gangliosides are sialic acid-containing glycosphingolipids. GalNAc-T is the enzyme involved in the biosynthesis of G(M2) and G(D2) glycosphingolipids. GalNAc-T catalyzes the