Structure of a lactic acid ether-containing and glycerol phosphate-containing O-polysaccharide from Proteus mirabilis O40

→3)-β-d-GlcpNAc4(R-Lac)-(1→3)-α-d-Galp-(1→3)-d-Gro-1-P-(O→3)-β-d-GlcpNAc-(1→ where d-GlcpNAc4(R-Lac) stands for 2-acetamido-4-O-[(R)-1-carboxyethyl]-2-deoxy-d-glucose