FIG. 1.

Western immunoblot of electrophoretically separated M. arthritidis proteins after treatment of intact cells with carboxypeptidase Y concentrations of 0, 0.075, 0.25, 0.5, 1, and 1.52 mg/ml for 1 h, stained with pooled MAA1- and MAA2-specific MAbs A9a and 7a, respectively. Proteins were electrophoresed on SDS–7.5% (wt/vol) polyacrylamide gels.