A type II cAMP-dependent protein kinase regulatory subunit that plays a role in confering CYCLIC AMP activation of protein kinase activity. It has a higher affinity for cAMP than that of the CYCLIC-AMP-DEPENDENT PROTEIN KINASE RIIBETA SUBUNIT. Binding of this subunit by A KINASE ANCHOR PROTEINS may play a role in the cellular localization of type II protein kinase A.

Synonyms: Cyclic-AMP-Dependent Protein Kinase RIIalpha Subunit Regulatory Subunit RIIalpha, Cyclic-AMP-Dependent Protein Kinase cAMP-Dependent Protein Kinase, Type 2alpha-Regulatory Subunit RII alpha, cAMP Protein Kinase RIIalpha, cAMP Protein Kinase 0 Regulatory Subunit RIIalpha, Cyclic AMP Dependent Protein Kinase Cyclic AMP Dependent Protein Kinase RIIalpha Subunit cAMP-Dependent Protein Kinase type II-alpha Regulatory Subunit cAMP Dependent Protein Kinase type II alpha Regulatory Subunit Protein Kinase A, RII alpha Subunit cAMP Dependent Protein Kinase, Type 2alpha Regulatory Subunit cAMP Protein Kinase RIIalpha Cyclic AMP-Dependent Protein Kinase RIIalpha Subunit