D02 is a fully human IgG1 antibody specific to IL2RA that was obtained from RenMabTM humanized immunoglobulin mice. D02 binds both human and cynomolgus monkey IL2RA with high affinity. D02 binds to the sushi2 epitope of IL2RA without obstructing the binding of IL-2 or inhibiting IL-2 signaling. D02 exhibits anti-tumor efficacy when administered to mice harboring MC38 tumors.