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 lower affinity for cAMP than the CYCLIC-AMP-DEPENDENT PROTEIN KINASE RIIALPHA 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: 0 cAMP-Dependent Protein Kinase, Type 2beta-Regulatory Subunit Regulatory Subunit RIIbeta, Cyclic-AMP-Dependent Protein Kinase Cyclic AMP Dependent Protein Kinase RIIbeta Subunit cAMP Protein Kinase RIIbeta cAMP Dependent Protein Kinase, Type 2beta Regulatory Subunit Protein Kinase A, RII beta Subunit Regulatory Subunit RIIbeta, Cyclic AMP Dependent Protein Kinase Cyclic AMP-Dependent Protein Kinase RIIbeta Subunit RIIbeta, cAMP Protein Kinase Cyclic-AMP-Dependent Protein Kinase RIIbeta Subunit RII beta, cAMP Protein Kinase