Abstract
Two hybridoma cell lines producing monoclonal antibodies (MAbs) against a hemagglutinin/protease (HA/P) from Vibrio cholerae non-01 were produced and characterized. The two MAbs contained the kappa light chain and were IgG1 type. They similarly neutralized HA/P protease activity derived from both V. cholerae non-01 and V. cholerae 01, whereas they were unable to neutralize the hemagglutinating activity of HA/P, suggesting that the epitopes for protease and hemagglutination activities are different. Western blotting analysis and the cross-neutralization test with the two MAbs confirmed the identity of HA/P produced by V. cholerae non-01 and 01. This study also suggests that HA/P of V. cholerae and a protease of V. parahaemolyticus are immunologically unrelated.
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