alpha-D-GlcN-(1->4)-beta-D-IdoA2S-(1->4)-alpha-D-GlcNS3S-(1->4)-beta-D-GlcA-(1->3)-beta-D-Gal-(1->3)-beta-D-Gal-(1->4)-beta-D-Xyl-yl group
alpha-d-glcn-(1->4)-beta-d-idoa2s-(1->4)-alpha-d-glcns3s-(1->4)-beta-d-glca-(1->3)-beta-d-gal-(1->3)-beta-d-gal-(1->4)-beta-d-xyl-yl group
A linear heptasaccharide glycosyl group consisisting of one iduronic acid residue sulfated on O-2, two glucosamine residues, one of which is sulfated on nitrogen and at O-3, one glucuronic acid residue, and two galactose residues linked to a xylosyl residue at the reducing end and which is commonly bonded to an amino acid residue.