?-D-GlcpNAc-(1->2)-alpha-D-Glcp-(1->2)-alpha-D-Galp-(1->3)[?-D-Galp-(1->6)]-alpha-D-Glcp-(1->3)-L-gro-alpha-D-manHep?-(1->3)-L-gro-alpha-D-manHep?-(1->5)-D-Kdn(?->