alpha-D-GlcpA-(1->2)-L-gro-alpha-D-manHepp-(1->3)[beta-D-Glcp-(1->4)[alpha-D-Legp5,7Ac2-(2->6)]-beta-D-Glcp-(1->4)]-D-gro-alpha-D-manHepp-(1->5)-alpha-D-Kdop-(2->6)-beta-D-GlcpN-(1->6)-D-GlcN(?->