Neutralization of IL15RA in CTLL-2 mouse cytotoxic T cell line. Samples were incubated in IL15RA polyclonal antibody (Product # PA5-47749). Recombinant Human IL-15 stimulates proliferation in the CTLL-2 mouse cytotoxic T cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Human IL-15 (0.8 ng/mL) is neutralized (green line) by increasing concentrations of Mouse IL-15 Rα Antigen Affinity-purified Polyclonal Antibody. The ND50 is typically 0.3-1.5 µg/mL.