[alpha-D-Glcp-(1->4)-beta-L-Galp-(1->7)-beta-D-GlcpNAc-(1->2)-D-gro-alpha-L-manHepp-(1->2)]-L-gro-alpha-D-manHepp-(1->3)-L-gro-alpha-D-manHepp7PEtn-(1->5)-alpha-L-3-deoxy-manOct2ulop-onic-(2->6)-beta-D-GlcpNAc-(1->6)-alpha-D-GlcpNAc(1->