3-O-[beta-D-galactosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->3)-beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl]-L-serine zwitterion residue
3-o-[beta-d-galactosyl-(1->4)-n-acetyl-beta-d-glucosaminyl-(1->3)-beta-d-galactosyl-(1->3)-n-acetyl-alpha-d-galactosaminyl]-l-serine zwitterion residue
An <small>L</small>-α-amino acid residue derived from 3-<em>O</em>-[β-<small>D</small>-galactosyl-(1→4)-<em>N</em>-acetyl-β-<small>D</small>-glucosaminyl-(1→3)-β-<small>D</small>-galactosyl-(1→3)-<em>N</em>-acetyl-α-<small>D</small>-galactosaminyl]-<small>L</small>-serine.