Overlay histogram showing Jurkat cells stained with ab16669 (red line). The cells were fixed with 4% paraformaldehyde (10 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 (ab16669, 1/1000 dilution) for 30 min at 22°C. The secondary antibody Goat anti-rabbit IgG H&L (Phycoerythrin, pre-adsorbed) (ab72465) was used at 1/1000 dilution for 30 min at 22°C. Isotype control antibody (black line) was rabbit IgG (monclonal) (0.1μg/1x10⁶ cells) used under the same conditions. Unlabelled sample (blue line) was also used as a control. Acquisition of >5,000 events were collected using a 20mW Argon ion laser (488nm) and 575/30 bandpass filter.

Sandwich ELISA to detect Rabbit IgG. Curve generated from a streptavidin-coated 96-well plate probed with dilutions of biotinylated Rabbit IgG and read after a 2 hour incubation at room temperature with ab72465