beta-D-GlcpA4Ac-(1->4)-beta-D-Xylp-(1->3)-beta-D-Xylp-(1->2)[beta-D-Manp6Ac-(1->4)-beta-D-GlcpA-(1->2)alpha-D-Manp6Ac-(1->2)-beta-D-Xylp-(1->4)-beta-D-Xylp-(1->4)[3)-alpha-D-Manp-(1->3)-alpha-D-Manp-(1->3)]-alpha-D-Manp-(1->]n