?-D-NeupGc-(2->?)-?-D-GalpNAc-(1->?),?-D-GlcpNAc-(1->?)-alpha-D-Manp-(1->3)[?-D-GlcpNAc-(1->?)-alpha-D-Manp-(1->6)]-beta-D-Manp-(1->4)-beta-D-GlcpNAc-(1->4)-beta-D-GlcpNAc(1->