alpha-D-xylose-(1->3)-beta-D-glucose-L-seryl residue
alpha-d-xylose-(1->3)-beta-d-glucose-l-seryl residue
An <small>L</small>-α-amino acid residue derived from α-<small>D</small>-xylose-(1→3)-β-<small>D</small>-glucose-<small>L</small>-serine.