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Structural characterization of the serotype O:5 O-polysaccharide antigen of the lipopolysaccharide of Escherichia coli O:5
被引:0
|作者:
MacLean, LL
[1
]
Perry, MB
[1
]
机构:
[1] NATL RES COUNCIL CANADA,INST BIOL SCI,OTTAWA,ON K1A 0R6,CANADA
来源:
关键词:
Escherichia coli;
lipopolysaccharide;
polysaccharide;
O antigen;
NMR;
D O I:
暂无
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
The structure of the antigenic O-polysaccharide component of the smooth lipopolysaccharide produced by Escherichia coli serotype O:5 was investigated by composition, methylation, and periodate oxidation methods, and by 1D and 2D nuclear magnetic resonance spectroscopy. The antigenic O-chain was determined to be a high molecular weight polysaccharide composed of repeating tetrasaccharide units containing 2-acetamido-2-deoxy-D-galactose, D-galactose, D-ribose, and 3-acetamido-3,6-dideoxy-D-glucose and having the structure -[-4)-beta-D-Galp-(1-3)-alpha-D-GalpNAc-(1-4)-beta-D-Quinp3NAc-(1-3)-beta-D-Ribf-(1-]-.
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页码:199 / 205
页数:7
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