Lipopolysaccharides (LPS) are surface glycoconjugates embedded in the external leaflet of the outer membrane (OM) of the Gram-negative bacteria. They consist of three regions: lipid A, core oligosaccharide (OS), and O-specific polysaccharide or O-antigen. Lipid A is the glycolipid endotoxin domain that anchors the LPS molecule to the OM, and therefore, its chemical structure is crucial in the maintenance of membrane integrity in the Gram-negative bacteria. In this paper, we reported the characterization of the lipid A and OS structures from Sq02-Rif, which is a psychrotrophic Gram-negative bacterium isolated from the intestine of . The immunomodulatory activity of both LPS and lipid A was also examined.
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| http://dx.doi.org/10.3390/md19110646 | DOI Listing |
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