title: Structure of extracellular polysaccharides of Escherichia coli strains 36M, 72M, and 29M isolated from coligranuloma of chick intestine. I. Polysaccharide from E. coli 36M.
abstract: An extracellular polysaccharide was isolated from culture broth of Escherichia coli 36M, and fractionated on a column of Sephadex G-150 into two fractions; the high molecular weight portion (85% of the total polysaccharide) contained pyruvic acid, and showed a positive immune reaction with anti-Ps-I-serum obtained from a rabbit. The low molecular weight portion (15% of the total polysaccharide) showed a negative immune reaction. The methylation, Smith's degradation, partial acid hydrolysis and methanolysis of the higher molecular weight polysaccharide revealed a repeating structure as follows: (see article).
mesh_terms: D000818:Animals; D002645:Chickens / Q000382:microbiology; D004926:Escherichia coli / Q000032:analysis*; D006099:Granuloma / Q000662:veterinary; D006601:Hexoses / Q000032:analysis; D007410:Intestinal Diseases / Q000662:veterinary; D008745:Methylation; D010084:Oxidation-Reduction; D011135:Polysaccharides, Bacterial / Q000032:analysis / Q000302:isolation & purification; D011773:Pyruvates / Q000032:analysis
chemical_list: D006601:Hexoses; D011135:Polysaccharides, Bacterial; D011773:Pyruvates