alpha-D-Kdop-(2->4)[beta-D-GlcpNAc-(1->3)[D-gro-alpha-D-manHep?-(1->7)-L-gro-alpha-D-manHep?-(1->7)]-L-gro-alpha-D-manHep?-(1->3)[beta-D-Glcp-(1->4)]-L-gro-alpha-D-manHep?-(1->5)]-?-D-Kdop(2->