[?-D-Glcp-(1->7)-[D-gro-?-L-manHepp-(1->7)-L-gro-?-D-manHepp-(1->7)-?-D-GlcpNAc-(1->3)-L-gro-?-D-manHepp-(1->3)]-L-gro-?-D-manHepp-(1->5)]-?-sugar(?->