β-D-GlcpA-(1→2)[β-D-GlcpA-(1→2)[β-D-GlcpA-(1→2)-[3)-α-D-Manp-(1→3)-α-D-Manp-(1→3)-α-D-Manp-(1→3)-α-D-Manp-(1→3)]-α-D-Manp-(1→3)-α-D-Manp-(1→3)-α-D-Manp-(1→3)]-α-D-Manp-(1→3)-α-D-Manp-(1→3)[?-D-Xylp-(1→4)-?-D-Xylp-(1→4)]-α-D-Manp-(1→]n
