beta-D-GalpNAc?OS-(1->4)-beta-D-GlcpNAc-(1->2)-alpha-D-Manp-(1->3)[beta-D-Manp-(1->3)-alpha-D-Manp-(1->6)]-beta-D-Manp-(1->4)-beta-D-GlcpNAc-(1->4)[alpha-L-Fucp-(1->?)]-?-D-GlcpNAc-(1->
