(M) HeLa cells were transfected with control plasmid/GFP-PX or Bim(EL) EE/GFP-PX (3:1). The percentages of cells with GFP-vesicles were assessed. Data are shown as mean ± SD. ∗∗p < 0.01. Fluorescent microscope images show GFP-PX vesicles. 