Figure 11From: Activity of the Bacillus anthracis20 kDa protective antigen component LIST PA 17 and rPA 20 induce Caspase 3 enzymatic activity in PBMC. Cells were exposed to LIST PA17 and to rPA20 separately and harvested at indicated time points. Cells were lysed and centrifuged. The mixture was incubated for 30 min and the fluorescence was measured using excitation/emission ~496/520 nm.Back to article page