Abstract
AbstractThe complete structure of the lipopolysaccharide isolated from the Gram‐negative marine bacterium Alteromonas addita, type strain KMM 3600T = R10SW13T, has been elucidated by means of a combined chemical approach and state‐of‐the‐art NMR and MS analyses. Isolation and characterisation of the lipid A moiety and the core oligosaccharide were pursued separately after either acid or alkaline treatment of the lipopolysaccharide. The structure detected was identified as a novel, highly negatively charged, deep‐rough lipopolysaccharide in which a trisaccharide subunit is connected to a typical lipid A glucosamine backbone. Within the core oligosaccharide, a phosphodiester bridge connects a glucose unit to a heptose residue.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
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