?-D-GlcpNAc-(1->?)-?-?-Manp-(1->?)[?-D-GlcpNAc-(1->?)-?-?-Manp-(1->?)][?-?-Xylp-(1->?)]-?-?-Manp-(1->?)-?-D-GlcpNAc-(1->?)[?-?-Fuc?-(1->?)]-?-D-GlcpNAc-(1->