Immunogen sequence: ADRVVKAVPF PPTHRLTSEE VFDLDGIPRV DVLKNHLVKE GRVDEEIALR IINEGAAILR REKTMIEVEA PITV. PPP3CB is a calcium-dependent, calmodulin-stimulated protein phosphatase. This subunit may have a role in the calmodulin activation of calcineurin.