Figure 2.

Western blot analysis of DNA vaccines. Membranes were probed with anti-PA antibody (A) or anti-VP22 antibody (B) as described in section 2.2. Cells were untransfected (1) or transfected with DNA vaccines expressing VP22 (2), PA₆₃ (3), VP22-PA₆₃ (4) or PA₆₃-VP22 (5).