β-D-GlcpNAc-(1→2/3/4)-β-D-Galp-(1→4)-β-D-GlcpNAc-(1→3)-β-D-Galp-(1→4)-β-D-GlcpNAc-(1→3/6)[β-D-Galp-(1→3/6)]-?-D-GalpNAc-(1→
