Fig 3. Antibodies to Vtp in sera from infected mice with different serotypes of B. hermsii.
Panel A. Dot blot analysis of binding of antibodies in pooled sera from mice infected for 6 weeks with either serotype 7 or serotype 19 to recombinant Vtp proteins from either strain HS1 or CC1 of B. hermsii. Purified proteins at a concentration of 20 μg/ml were spotted onto nitrocellulose membranes in duplicate and then incubated with sera. Panel B. Western blot analysis of pooled week-6 sera from infected mice to recombinant Vtp proteins at concentrations of 50, 5, or 0.1 μg/ml. Molecular weight standards in kilodaltons are shown on the left.