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. 2008 Jan 4;190(6):1857–1865. doi: 10.1128/JB.01546-07

FIG. 1.

FIG. 1.

Structures of the two distinct core OS present in P. aeruginosa strain PAO1. (A) Uncapped core OS that is devoid of O antigen and contains an α-1,6-linked l-Rha thought to be added by MigA. (B) Capped core OS that provides the site of O-antigen attachment through an α-1,3-linked l-Rha thought to be added by WapR. Abbreviations: Hep, l-glycero-d-manno-heptose; Kdo, 3-deoxy-d-manno-octulosonic acid; FucNAc, N-acetylfucosamine (2-acetamido-2,6-dideoxy-d-galactose); ManNAc3NAcA, 2,3-diacetamido-2,3-dideoxy-d-mannuronic acid; ManNAc3NAmA, 2-acetamido-3-acetamidino-2,3-dideoxy-d-mannuronic acid; GalN, galactosamine; Ala, alanine; Cm, carbamoyl group; P, phosphate. Adapted from references 2, 24, and 25.