Antibody response to the 89-kDa outer membrane protein of Brucella in bovine brucellosis Limet, J. N. and Cloeckaert, A. and Bezard, G. and van Broeck, J. and Dubray, G.,, 39, 403-407 (1993), doi = https://doi.org/10.1099/00222615-39-6-403, publicationName = Microbiology Society, issn = 0022-2615, abstract= Summary The antibody response of cattle to the minor 89-kDa outer-membrane protein (OMP) of brucella was measured by indirect ELISA with the purified protein and compared with the antibody response to smooth lipopolysaccharide (S-LPS). Pre-incubating sera with sonicated cell extracts of Escherichia coli prevented the binding of antibodies from uninfected animals to the 89-kDa OMP, suggesting the presence of one or more cross-reactive epitopes on this protein. In cattle infected experimentally with Brucella abortus, the antibody response to the 89-kDa OMP was later and less intense than that to S-LPS. In naturally infected cattle, 68% of animals showing an antibody response to S-LPS also showed an antibody response to the 89-kDa OMP. Results indicate that specific epitopes of the 89-kDa OMP in combination with those of other OMPs could be useful for diagnosis of brucellosis in cattle., language=, type=