Abstract
Lipopolysaccharides (LPS) from Leptotrichia buccalis, strains L11, ATCC 14201 and ATCC 19616 were partially degraded with 1% acetic acid. The acid soluble polysaccharides were subjected to gel filtration. These experiments showed that the carbohydrate moiety of LPS from ATCC 14201 and ATCC 19616 were similar, consisting of a core oligosaccharide unsubstituted by 0-side chains containing galactose, glucose and D-glycero-D-manno-heptose as neutral sugars. The core analogous fraction isolated from L11 LPS contained the same three neutral sugars, but in different ratios.
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