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Chemical structure of L. pneumophila LPS (modified from Kooistra et al., 2002b). Structure indicates its various regions: O-specific chain, core region consisting of the outer core and inner core and lipid A. Leg, derivatives of legionaminic acid; 4e-Leg, derivatives of 4-epilegionaminic acid; Rha, rhamnose; Man, mannose; QuiNAc, acetylquinovosamine; GlcNAc, acetylglucosamine; Kdo, 3-deoxy-d-manno-oct-2-ulosonic acid; P, phosphate; OAc, O-acetyl.
