[alpha-D-Glcp-(1->4)-beta-D-Xylp-(1->4)-beta-D-Xylp-(1->4)-alpha-D-Rhap-(1->3)-alpha-L-Manp-(1->2)]-alpha-L-Manp-(1->3)-alpha-L-Manp6PEtn-(1->3)-alpha-L-Manp-(1->4)-alpha-D-GlcpN6PEtn(1->