New Structures of the O-Specific Polysaccharides of Proteus. 4. Polysaccharides Containing Unusual Acidic N-Acyl Derivatives of 4-Amino-4,6-dideoxy-D-glucose

来自 EBSCO

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作者：

AN Kondakova，B Linder，R Fudala，SN Senchenkova，H Moll，AS Shashkov，W Kaca，U Zähringer，YA Knirel

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摘要：

The structures of the O-polysaccharides of the lipopolysaccharides of Proteus mirabilis O7 and O49 were determined by chemical methods, mass spectrometry, including MS/MS, and NMR spectroscopy, including experiments run in an H 2 O/D 2 O mixture to reveal correlations for NH protons. The O-polysaccharides were found to contain N-carboxyacetyl (malonyl) and N-(3-carboxypropanoyl) (succinyl) derivatives of 4-amino-4,6-dideoxyglucose (4-amino-4-deoxyquinovose, Qui4N), respectively. The behavior of Qui4N derivatives with the dicarboxylic acids under conditions of acid hydrolysis and methanolysis was studied using GLC-MS.

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关键词：

Proteus mirabilis 4-amino-4,6-dideoxy-D-glucose malonic acid succinic acid aspartic acid O-polysaccharide MS/MS

DOI：

10.1023/B:BIRY.0000043546.46903.32

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年份：

2004