Jurkat T cells were transfected with control, FIP3.1 or FIP3.2 siRNA oligonucleotides. A: Intracellular distribution of endogenous Rab11 and Rac1 was assessed by immunofluorescence.A, E, G: Three-dimensional (3D) confocal images were post-treated by deconvolution. A 0.4-µ-thick medial stack is shown. The pericentrosomal vesicular compartment is zoomed at the bottom right-hand corner.B, F, H: Population analysis of the co-localization volume between Rab11 and Rac1 within the percentriolar vesicular compartment. Each dot represents one cell. Horizontal bars represent the mean ± SEM, Mann-Whitney test was used. Images are representative of three experiments. Bar, 5 µm 