?-D-Galp-(1->?)-?-D-GlcpNAc-(1->?)-?-D-Galp-(1->?)-?-D-GlcpNAc-(1->?)-?-D-Galp-(1->?)[?-D-Galp-(1->?)-?-D-GlcpNAc-(1->?)]-D-GalNAc(?->
