1887

Abstract

Summary

Monoclonal antibodies (MAbs) were developed to isolate-specific flagellar epitopes and used to group isolates on the basis of epitope expression. BALB/c mice immunised with flagella purified from various isolates served as the source of immune spleen cells for fusion with SP2/0Ag14 myeloma cells. Evaluation of hybridoma culture medium by ELISA against various bacterial species and isolates indicated that 482 of 2127 hybridomas secreted antibodies specific for Specificity of MAbs for flagellar epitopes was demonstrated by indirect fluorescent antibody assays and Western blot analyses. Probing of 10 isolates with MAbs indicated that four isolates each possessed a distinct and isolate-specific flagellar epitope; five other isolates shared a common flagellar epitope. One isolate did not react with any of the MAbs specific for flagellar epitopes. Thus, isolates could be grouped into six antigenically distinct groups based upon flagellar epitope expression. Additionally, a MAb reactive with a cell-associated component recognised all but one isolate. This serological grouping of isolates agrees with the grouping of isolates based upon genetic and physiological characteristics, and supports the assertion that there are different strains among isolates.

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1993-03-01
2022-10-04
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