[alpha-D-GlcpN-(1->7)-L-gro-alpha-D-manHep?-(1->7)-alpha-D-Glcp-(1->3)-alpha-D-Glcp-(1->3)-L-gro-alpha-D-manHep?4PyrP-(1->3)]-L-gro-alpha-D-manHep?4PyrP-(1->5)-?-L-3-deoxy-manOct2ulop-onic(2->