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