beta-D-GalNAc-(1->4)-[alpha-Neu5Ac-(2->3)]-beta-D-Gal-(1->4)-beta-D-GalNAc-(1->3)-D-Gal group
beta-d-galnac-(1->4)-[alpha-neu5ac-(2->3)]-beta-d-gal-(1->4)-beta-d-galnac-(1->3)-d-gal group
A glycosyl group derived from β-<small>D</small>-GalNAc-(1→4)-[α-Neu5Ac-(2→3)]-β-<small>D</small>-Gal-(1→4)-β-<small>D</small>-GalNAc-(1→3)<small>D</small>-Gal. The Sda antigen, present on N- and O-glycoproteins.