O(3)-(beta-D-glucuronosyl-(1->3)-beta-D-galactosyl-(1->3)-beta-D-galactosyl-(1->4)-beta-D-xylosyl)-L-serine(1-) residue
o(3)-(beta-d-glucuronosyl-(1->3)-beta-d-galactosyl-(1->3)-beta-d-galactosyl-(1->4)-beta-d-xylosyl)-l-serine(1-) residue
An organic anionic group obtained by deprotonation of the glucuronosyl carboxy group of <em>O</em><small><sup>3</small></sup>-(β-<small>D</small>-glucuronosyl-(1→3)-β-<small>D</small>-galactosyl-(1→3)-β-<small>D</small>-galactosyl-(1→4)-β-<small>D</small>-xylosyl)-<small>L</small>-serine residue; major species at pH 7.3.