Taxonomic group: bacteria / Proteobacteria
(Phylum: Proteobacteria)
Associated disease: infection due to Acinetobacter baumannii [ICD11:
XN8LS 
]
The structure was elucidated in this paperNCBI PubMed ID: 9691449Journal NLM ID: 0043535Publisher: Elsevier
Correspondence: s.g.wilkinson
chem.hull.ac.uk
Institutions: School of Chemistry, University of Hull, UK
The polymeric O-antigen was isolated from the lipopolysaccharide of the reference of the reference strain for Acinetobacter baumannii serogroup O-7. Both the lipopolysaccharide and the isolated polymer reacted with the homologous antiserum. Monosaccharide analyses and NMR spectra showed that the polymer had a hexasaccharide repeating unit constructed from residues of L-rhamnose (4) and N-acetyl-D-glucosamine (2). The following structure for the repeating unit was established by means of detailed interpretation of the NMR spectra, methylation analysis, and chemical degradations. The tetrasaccharide backbone is identical to that for the O-10 antigen of A. baumannii, which has α-D-ManpNAc as the lateral substituent in place of the disaccharide present in the O-7 antigen. [formula: see text]
Lipopolysaccharide, antigen, LPS, structure, O-antigen, Acinetobacter, Acinetobacter baumannii, L-rhamnose, O-7 antigen
Structure type: oligomer
Location inside paper: structure 2
Compound class: O-polysaccharide, O-antigen
Contained glycoepitopes: IEDB_136105,IEDB_137340,IEDB_141807,IEDB_151531,IEDB_225177,IEDB_885823
Methods: methylation, NMR, Smith degradation, de-N-acetylation
Related record ID(s): 495, 523
NCBI Taxonomy refs (TaxIDs): 470Reference(s) to other database(s): GTC:G20124AP
Show glycosyltransferases
There is only one chemically distinct structure:
Found 
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