alpha-D-Neup5Ac-(2->6)-?-D-GalpNAc-(1->?)-?-D-GlcpNAc-(1->?)-alpha-D-Manp-(1->3/6)[alpha-D-Neup5Ac-(2->6)-?-D-Galp-(1->?)-?-D-GlcpNAc-(1->?)-alpha-D-Manp-(1->3/6)]-beta-D-Manp-(1->4)-beta-D-GlcpNAc-(1->4)-beta-D-GlcpNAc-(1->
