STRUCTURAL-ANALYSIS OF OLIGOSACCHARIDE BISPHOSPHATES ISOLATED FROM THE LIPOPOLYSACCHARIDE OF A RECOMBINANT STRAIN OF ESCHERICHIA-COLI F515 (RE CHEMOTYPE) EXPRESSING THE GENUS-SPECIFIC EPITOPE OF CHLAMYDIA LIPOPOLYSACCHARIDE

被引:89
作者
HOLST, O [1 ]
BROER, W [1 ]
THOMASOATES, JE [1 ]
MAMAT, U [1 ]
BRADE, H [1 ]
机构
[1] UNIV UTRECHT,BIJVOET CTR BIOMOLEC RES,DEPT MASS SPECTROMETRY,UTRECHT,NETHERLANDS
来源
EUROPEAN JOURNAL OF BIOCHEMISTRY | 1993年 / 214卷 / 03期
关键词
D O I
10.1111/j.1432-1033.1993.tb17971.x
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 lipopolysaccharide of the recombinant strain Escherichia coli F515-207, expressing the genus-specific epitope of Chlamydia lipopolysaccharide, was sequentially de-O- and de-N-acylated by mild hydrazinolysis and treatment with 4 M KOH, respectively, yielding two oligosaccharide bisphosphates which were isolated by high-performance anion-exchange chromatography and gel-permeation chromatography. Their structures were determined by chemical analysis, NMR spectroscopy, and mass spectrometry as alpha-Kdo-(2-4)-alpha-Kdo-(2-6)-beta-D-GlcN-(1-6)-alpha-D-GlcN 1,4'-P, (tetrasaccharide bisphosphate) and alpha-Kdo-(2-8)-alpha-Kdo-(2-4)-alpha-Kdo-(2-6)-beta-D-GlcN-(1-6 )-alpha-D-GlcN 1,4'-P2 (pentasaccharide bisphosphate).
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页码:703 / 710
页数:8
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