beta-D-GlcpNAc-(1->4)-?-D-NeupAc-(2->?)-beta-D-Galp-(1->4)-?-D-GlcpNAc-(1->?)-alpha-D-Manp-(1->3/6)[?-D-GlcpNAc-(1->?)-alpha-D-Manp-(1->3/6)]-beta-D-Manp-(1->]
