alpha-D-Glcp-(1->3)[alpha-D-Glcp-(1->6)]-L-gro-alpha-D-manHep?-(1->3)beta-D-GlcpN-(1->7)-L-gro-alpha-D-manHep?-(1->4)[L-gro-alpha-D-manHep?-(1->6)]-L-gro-D-manHep(?->