title: Structural studies of the capsular polysaccharide of Klebsiella type 28.
abstract: The capsular polysaccharide from Klebsiella type 28 has been studied by methylation analysis, a modified Smith-degradation procedure, and uronic acid degradation with subsequent oxidation and elimination of the substituents of the oxidized residue. The polysaccharide contained the hexasaccharide repeating-unit shown below. The terminal D-glucopyranose residue was hydrolysed by emulsin, indicating a beta linkage. The anomeric natures of other glycosidic linkages were determined by characterization of fragments obtained during the degradative studies. The D-galactopyranose residue was not present in any fragment, but is assumed to be alpha-linked from optical-rotation considerations. (see article)
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D005690:Galactose / Q000032:analysis; D005947:Glucose / Q000032:analysis; D005965:Glucuronates / Q000032:analysis; D007709:Klebsiella / Q000032:analysis* / Q000648:ultrastructure; D008358:Mannose / Q000032:analysis; D008745:Methylation; D008968:Molecular Conformation; D009904:Optical Rotation; D010084:Oxidation-Reduction; D010504:Periodic Acid; D011135:Polysaccharides, Bacterial / Q000032:analysis*; D013347:Subcellular Fractions / Q000032:analysis
chemical_list: D005965:Glucuronates; D011135:Polysaccharides, Bacterial; D010504:Periodic Acid; D005947:Glucose; D008358:Mannose; D005690:Galactose