Document Detail


Structure of the acidic O-specific polysaccharide from Proteus vulgaris O39 containing 5,7-diacetamido-3,5,7,9-tetradeoxy-L-glycero-L-manno-non-2-ulosonic acid.
MedLine Citation:
PMID:  11448686     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The O-specific polysaccharide of Proteus vulgaris O39 was found to contain a new acidic component of Proteus lipopolysaccharides, 5,7-diacetamido-3,5,7,9-tetradeoxy-L-glycero-L-manno-non-2-ulosonic acid (di-N-acetylpseudaminic acid, Pse5Ac7Ac). The following structure of the polysaccharide was determined by NMR spectroscopy, including 2D 1H,(1)H COSY, TOCSY, ROESY, and 1H,(13)C HMQC experiments, along with selective cleavage of the polysaccharide by solvolysis with anhydrous trifluoromethanesulfonic (triflic) acid: -->8)-beta-Psep5Ac7Ac-(2-->3)-alpha-L-FucpNAc-(1-->3)-alpha-D-GlcpNAc-(1--> The structure established is unique among the O-specific polysaccharides, which is in accordance with classification of the strain studied into a separate Proteus serogroup.
Authors:
A N Kondakova; A V Perepelov; B Bartodziejska; A S Shashkov; S N Senchenkova; M Wykrota; Y A Knirel; A Rozalski
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Carbohydrate research     Volume:  333     ISSN:  0008-6215     ISO Abbreviation:  Carbohydr. Res.     Publication Date:  2001 Jul 
Date Detail:
Created Date:  2001-07-12     Completed Date:  2002-01-14     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0043535     Medline TA:  Carbohydr Res     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  241-9     Citation Subset:  IM    
Affiliation:
N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospeckt 47, Moscow 119991, Russia.
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MeSH Terms
Descriptor/Qualifier:
Carbohydrate Sequence
Disaccharides / chemistry
Hydrolysis
Molecular Conformation
Molecular Sequence Data
Molecular Structure
Nuclear Magnetic Resonance, Biomolecular
O Antigens / chemistry*
Proteus vulgaris / chemistry*
Sialic Acids / chemistry*
Trisaccharides / chemistry
Chemical
Reg. No./Substance:
0/5,7-diacetamido 3,5,7,9-tetradeoxy-glycero-manno-non-2-ulosonic acid (di-N-acetylpseudaminic acid); 0/Disaccharides; 0/O Antigens; 0/Sialic Acids; 0/Trisaccharides; 100343-04-2/5-acetamido-3,5,7,9-tetradeoxy-7-(3-hydroxybutyramido)nonulosonic acid

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