?-D-GlcpNAc-(1→?)-?-D-Manp-(1→?)[?-D-GlcpNAc-(1→?)-?-D-Manp-(1→?)][?-D-Xylp-(1→?)]-?-D-Manp-(1→?)-?-D-GlcpNAc-(1→?)[?-L-Fucp-(1→?)]-?-D-GlcNAc
