Anti-Mast Cell Chymase antibody [CC1] (ab2377) at 1/250 dilution + Skin (Human) Tissue Lysate - adult normal tissue (ab30166) at 10 µgSecondaryGoat Anti-Mouse IgG H&L (HRP) preadsorbed (ab97040) at 1/5000 dilutiondeveloped using the ECL techniquePerformed under reducing conditions.Observed band size : 35 kDa (why is the actual band size different from the predicted?)Exposure time : 8 minutes

Overlay histogram showing A431 cells stained with ab2733 (red line). The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab2733, 1µg/1x106 cells) for 30 min at 22ºC. The secondary antibody used was DyLight® 488 goat anti-mouse IgG (H+L) (ab96879) at 1/500 dilution for 30 min at 22ºC. Isotype control antibody (black line) was mouse IgG1 [ICIGG1] (ab91353, 2µg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed. This antibody gave a positive signal in A431 cells fixed with 4% paraformaldehyde (10 min)/permeabilized with 0.1% PBS-Tween for 20 min used under the same conditions.