Overlay histogram showing HL 60 cells stained with SL20726R (Green line).
The cells were fixed with 90% methanol (5 min) and then permeabilized with 0.01M PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum to block non-specific protein-protein interactions followed by the antibody (SL20726R,1μg/1x10^6 cells) for 30 min at 22℃. The secondary antibody used was fluorescein isothiocyanate goat anti-rabbit IgG (H+L) (SL 0295G-FITC , Brillant blue line) at 1/200 dilution for 30 min at 22℃. Isotype control antibody was rabbit IgG (polyclonal,SL0295P,Orange line) (1μg/1x10^6 cells) used under the same conditions. Unlabelled sample (blue line) was also used as a control. Acquisition of 20,000 events were collected using a 20mW Argon ion laser (488nm) and 525/30 bandpass filter.