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Salmonella minnesota R 595 (Re) and other Salmonella strains incorporate cis-delta 9-16:1 (palmitoleic acid) at the expense of mainly dodecanoic acid into the lipid-A portion of lipopolysaccharides, when the cells are grown at low temperature (12 degrees C). It has recently been shown, that in S. minnesota R 595 grown at 37 degrees C dodecanoic acid is linked to the 3-hydroxyl group of an amide-bound 3-hydroxytetradecanoic acid. The present data suggest, that cis-delta 9-16:1 occupies the same position in lipid A (12 degrees C).
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Wollenweber et al. (1983) studied this question.
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