| Literature DB >> 7686488 |
O Holst1, W Broer, J E Thomas-Oates, U Mamat, H Brade.
Abstract
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'-P2 (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).Entities:
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Year: 1993 PMID: 7686488 DOI: 10.1111/j.1432-1033.1993.tb17971.x
Source DB: PubMed Journal: Eur J Biochem ISSN: 0014-2956