The structure of the carbohydrate backbone of the rough type lipopolysaccharides from Proteus penneri strains 12, 13, 37 and 44 Original Research Article

The following structure of the lipid A–core backbone of the rough type lipopolysaccharides (LPS) from Proteus penneri strains 12, 13, 37, and 44 was determined using NMR and mass spectroscopy and chemical analysis of the oligosaccharides obtained by mild-acid hydrolysis, alkaline O,N-deacylation, O-deacylation with hydrazi