Document Detail

Structure of the O-antigen of Providencia stuartii O20, a new polysaccharide containing 5,7-diacetamido-3,5,7,9-tetradeoxy-l-glycero-d-galacto-non-2-ulosonic acid.
MedLine Citation:
PMID:  16949059     Owner:  NLM     Status:  MEDLINE    
The O-polysaccharide chain of the lipopolysaccharide (LPS) of Providencia stuartii O20 was found to contain d-glucuronic acid, N-acetyl-d-glucosamine, and a rarely occurring higher sugar 5,7-diacetamido-3,5,7,9-tetradeoxy-l-glycero-d-galacto-non-2-ulosonic acid (di-N-acetyl-8-epilegionaminic acid, 8eLeg5Ac7Ac). Degradation of the LPS with dilute acetic acid caused depolymerization of the polysaccharide chain by the ketosidic linkage to give a tetrasaccharide corresponding to the repeating unit of the polysaccharide. Based on sugar and methylation analyses of the tetrasaccharide and O-deacylated LPS as well as ESIMS, (1)H and (13)C NMR spectroscopy data, the structure of the O-polysaccharide of P. stuartii O20 was established.
Alexander S Shashkov; Nina A Kocharova; George V Zatonsky; Aleksandra Błaszczyk; Yuriy A Knirel; Antoni Rozalski
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2006-09-01
Journal Detail:
Title:  Carbohydrate research     Volume:  342     ISSN:  0008-6215     ISO Abbreviation:  Carbohydr. Res.     Publication Date:  2007 Feb 
Date Detail:
Created Date:  2007-02-02     Completed Date:  2007-04-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0043535     Medline TA:  Carbohydr Res     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  653-8     Citation Subset:  IM    
N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russian Federation.
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MeSH Terms
Nuclear Magnetic Resonance, Biomolecular
O Antigens / chemistry*
Providencia / chemistry*
Sialic Acids / analysis*
Spectrometry, Mass, Electrospray Ionization
Reg. No./Substance:
0/O Antigens; 0/Sialic Acids; 112154-63-9/5,7-diacetamido-3,5,7,9-tetradeoxy-glycerogalacto-nonulosonic acid

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