Low-molecular-weight solutes released during mild acid hydrolysis of the lipopolysaccharide of Pseudomonas aeruginosa. Identification of ethanolamine triphosphate

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Abstract
A careful examination of the low-molecular-weight solutes released during mild acid hydrolysis of the lipopolysaccharide of Pseudomonas aeruginosa (N.C.T.C. 1999) revealed the presence of ethanolamine triphosphate. During storage, the compound decomposed to give ethanolamine pyrophosphate, identified in a previous study (Drewry et al., 1971); PP(i) may be a further decomposition product. Evidence for the attachment of ethanolamine triphosphate to a polysaccharide fraction was obtained, but the possibility that some was attached to the lipid A moiety was not excluded. Basic compounds released during the hydrolysis of lipopolysaccharide included amino acids, polyamines and oligopeptides.