alpha-D-GalpN-(1->4)-alpha-D-GalpA-yl group
alpha-d-galpn-(1->4)-alpha-d-galpa-yl group
A galactosyl group obtained by removing the hydroxy group from the hemiacetal function of the disaccharide α-<small>D</small>-galactosaminyl-(1→4)-α-<small>D</small>-galacturonic acid.