alpha-D-GlcpN-(1->7)-L-gro-alpha-D-manHepp-(1->2)[L-gro-alpha-D-manHepp-(1->6)]-L-gro-alpha-D-manHepp-(1->3)beta-D-Glcp-(1->4)[alpha-D-Glcp-(1->6)]-L-gro-alpha-D-manHepp-(1->5)-D-Kdn7PEtn(?->