ab56889 staining mitofusin 2 in MEF1 cells treated with nigericin Na+ salt (ab120494), by ICC/IF. Decrease in mitofusin 2 expression correlates with increased concentration of nigericin Na+ salt, as described in literature.The cells were incubated at 37°C for 3h in media containing different concentrations of ab120494 (nigericin Na+ salt) in DMSO, fixed with 100% methanol for 5 minutes at -20°C and blocked with PBS containing 10% goat serum, 0.3 M glycine, 1% BSA and 0.1% tween for 2h at room temperature. Staining of the treated cells with ab56889 (10 µg/ml) was performed overnight at 4°C in PBS containing 1% BSA and 0.1% tween. A DyLight 488 goat anti-mouse polyclonal antibody (ab96879) at 1/250 dilution was used as the secondary antibody. Nuclei were counterstained with DAPI and are shown in blue.