Immunocytochemistry analysis of 4% Paraformaldehyde-fixed, 0.1% Triton X-100 permeabilized HUVEC cells labelling CD31 with ab218 at 1/100 dilution (10.62µg/ml), followed by ab150113 Goat Anti-mouse IgG H&L (Alexa Fluor^® 488) antibody at 1/1000 (2µg/ml) dilution (Green). Confocal image showing cytoplasmic and membranous staining in HUVEC cell line. ab179513 Anti-beta Tubulin rabbit monoclonal antibody was used to counterstain tubulin at 1/500 dilution, followed by ab150080 Goat Anti-Rabbit IgG H&L (Alexa Fluor^® 594) at a 1/500 dilution (Red). The nuclear counterstain was DAPI (Blue).

Negative control cell: HEK-293 (PMID: 27097314).

Negative control 1: ab218 at a 1/100 dilution (10.62µg/ml) followed by ab150080 at a 1/500 dilution (4µg/ml).

Negative control 2: ab179513 at a 1/500 dilution (4µg/ml) followed by ab150113 at a 1/1000 dilution (4µg/ml).

Flow cytometric analysis of HEK 293 (human embryonic kidney epithelial cell) (Left panel) / HUVEC (human umbilical vein endothelial cell) (Right panel) cells labelling CD31 with ab218 at 1/1000 dilution (1.062µg/ml) (Red) compared with a mouse monoclonal IgG (Black) isotype control and an unlabelled control (cells without incubation with primary antibody and secondary antibody) (Blue). A Goat anti mouse IgG (Alexa Fluor^® 488, ab150113) at 1/2000 dilution was used as the secondary antibody.

Negative control: HEK 293 (PMID: 27097314).

Gated on viable cells.