Studies on the cellular and free lipopolysaccharides from Branhamella catarrhalis
- PMID: 1260539
- DOI: 10.1139/m76-072
Studies on the cellular and free lipopolysaccharides from Branhamella catarrhalis
Abstract
Cellular and free lipopolysaccharides obtained from Neisseria catarrhalis and Branhamella catarrhalis were found to be essentially identical. Both cellular and free lipopolysaccharides contained core-oligosaccharides of the following composition: D-glucose (4 mol), D-galactose (1 mol), 2-amino-2-deoxy-D-glucose (1 mol), and 3-deoxy-D-manno-octulosonic acid. Aldoheptose and phosphate components were below levels of detection. Several physical methods indicated that all core-oligosaccharide preparations were identical. Lipid A preparations from cellular and free lipopolysaccharides of both organisms were qualitatively and quantitatively similar; they were composed of decanoic acid, dodecanoic acid, 3-hydroxy dodecanoic acid, 2-amino-2-deoxy-D-glucose, phosphate, and ethanolamine. The results tend to justify the transfer of Neisseria catarrhalis to the genus Branhamella.
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