title: 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.
mesh_terms: D000606:Amino Sugars / Q000032:analysis; D005690:Galactose / Q000032:analysis; D005944:Glucosamine / Q000032:analysis; D005947:Glucose / Q000032:analysis; D007661:Ketoses / Q000032:analysis; D008070:Lipopolysaccharides / Q000032:analysis*; D009343:Neisseria / Q000032:analysis / Q000145:classification; D009346:Neisseriaceae / Q000032:analysis* / Q000145:classification; D009844:Oligosaccharides / Q000032:analysis; D011135:Polysaccharides, Bacterial / Q000032:analysis*; D013400:Sugar Acids / Q000032:analysis
chemical_list: D000606:Amino Sugars; D007661:Ketoses; D008070:Lipopolysaccharides; D009844:Oligosaccharides; D011135:Polysaccharides, Bacterial; D013400:Sugar Acids; C002532:2-keto-3-deoxyoctonate; D005947:Glucose; D005944:Glucosamine; D005690:Galactose