Anti-PP2A-B′ (B56) AntibodyPP2A phosphatase activator, PP2A, subunit B′, PP2A, subunit B′, PR53 isoform, Phosphotyrosyl phosphatase activator, protein phosphatase 2A activator, regulatory subunit 4, protein phosphatase 2A, regulatory subunit B′, protein phosphatase 2A, regulatory