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FEMS Immunol Med Microbiol. 1999 May;24(1):57-62.

The lipopolysaccharide core type of Escherichia coli O157:H7 and other non-O157 verotoxin-producing E. coli.

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  • 1Department of Medical Microbiology, University of Edinburgh Medical School, UK.

Abstract

A mouse monoclonal antibody specific for the R3 lipopolysaccharide core type of Escherichia coli was used to determine the core type of E. coli O157:H7 and other non-O157 verotoxin-producing E. coli strains. Lipopolysaccharide extracts from 28 clinical isolates were examined by sodium dodecylsulfate-polyacrylamide gel electrophoresis and immunoblotting and all were found to have the R3 core. None of the core lipopolysaccharide from the strains tested reacted with the control R1 and R2 specific monoclonal antibodies. A common core type between all the verotoxin-producing E. coli strains tested may be significant when considering the immune response to these bacteria, and to the receptor for the VT bacteriophage.

PMID:
10340713
[PubMed - indexed for MEDLINE]
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