beta-D-Galp-(1->3)-beta-D-GalpNAc-(1->3)-alpha-D-Galp-(1->4)-beta-D-Galp-yl group
beta-d-galp-(1->3)-beta-d-galpnac-(1->3)-alpha-d-galp-(1->4)-beta-d-galp-yl group
A tetrasaccharide β-<small>D</small>-galactosyl group obtained by removal of the hydroxy group from the hemiacetal function of β-<small>D</small>-galactosyl-(1→3)-<em>N</em>-acetyl-β-<small>D</small>-galactosaminyl-(1→3)-α-<small>D</small>-galactosyl-(1→4)-β-<small>D</small>-galactose. Part of, and the proposed epitope from, α-<small>D</small>-galactosyl-(1→4)-β-<small>D</small>-galactosyl-(1→4)-β-<small>D</small>-glucosyl-(1↔1)-ceramide (galactosylgloboside;GalGb<small><sub>4</sub></small>; Gb<small><sub>5</sub></small>Cer; SSEA-3).