Detection of cross-reacting epitopes on plasmid-encoded outer membrane proteins of enteropathogenic Yersinia by monoclonal antibodies

Abstract
Plasmid-positive Yersinia bacteria of different species and different serotypes were analysed with respect to the immunological relationship of two of their plasmid-encoded outer membrane proteins (OMPs) by the immunoblot technique using three monoclonal antibodies (mAb), which were induced against OMPs of Yersinia enterocolitica sero type O:9 bacteria. Evidence is presented that these OMPs display discrete epitopes, which are common to all plasmid-positive Yersinia strains tested, with only one exception, indicating a close structural relationship of the OMPs analysed.

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