[Structural study of O-specific polysaccharides from Proteus mirabilis O28 and 3/6, containing amides of D-galacturonic acid with L-amino acids; C-methylation and beta-elimination at L-serine and L-threonine residues upon analysis using the methylation method].
Structures of the O-specific polysaccharides of Proteus mirabilis O28 and 3/6 were studied by partial acid hydrolysis followed by borohydride reduction and methylation and GLC/MS analysis of the resulting glycosyl alditol derivatives. C-Methylation and beta-elimination in serine and threonine attached to the carboxyl group of galacturonic acid were observed in the course of the methylation analysis.
Vinogradov
E V
EV
Knirel'
Iu A
IuA
Kochetkov
N K
NK
Radzievska-Lebrekht
I
I
Katsa
V
V
D000596:Amino Acids / Q000032:analysis*; D002240:Carbohydrate Sequence; D008401:Gas Chromatography-Mass Spectrometry; D006603:Hexuronic Acids / Q000032:analysis*; D008745:Methylation; D008969:Molecular Sequence Data; D019081:O Antigens; D010084:Oxidation-Reduction; D011135:Polysaccharides, Bacterial / Q000737:chemistry*; D011513:Proteus mirabilis / Q000737:chemistry* / Q000276:immunology; D012694:Serine / Q000737:chemistry*; D013912:Threonine / Q000737:chemistry*
D000596:Amino Acids; D006603:Hexuronic Acids; D019081:O Antigens; D011135:Polysaccharides, Bacterial; D013912:Threonine; D012694:Serine; C007819:galacturonic acid