alpha-L-IdopA-(1->?)-beta-L-GalpNAc4S-(1->?)-beta-D-GlcpA-(1->?)-beta-L-GalpNAc6S-(1->?)-?-?-GlcpA-(1->?)-beta-L-Galp-(1->?)-beta-L-Galp-(1->?)-D-Xyl(?->