The FN50 monoclonal antibody specifically reacts with human CD69, the 27-33 kDA type II transmembrane protein also known as the very early activation antigen (VEA) or the activation inducer molecule (AIM). It is expressed as a disulfide-linked dimer on B cells, T cells, NK cells, platelets, eosinophils, and neutrophils. It increases in expression upon cell activation and seems to serve a role as a signaling receptor.

Type: Primary
Antigen: CD69
Clonality: Monoclonal
Clone: FN50
Conjugation: FITC (Fluorescein Isothiocyanate)
Epitope:
Host: Mouse
Isotype: IgG1, kappa
Reactivity: Human