Anti-protein kinase (cAMP-dependent, catalytic) inhibitor alpha antibodies enable researchers to detect and measure the protein kinase (cAMP-dependent, catalytic) inhibitor alpha antigen in biological samples. This target is a reported synonym of the PKIA gene, which encodes cAMP-dependent protein kinase inhibitor alpha. This protein is known to function in the regulation of transcription, among other biological roles. The human version of protein kinase (cAMP-dependent, catalytic) inhibitor alpha has a canonical amino acid length of 76 residues and a protein mass of 8 kilodaltons. Other names for this target antigen include PRKACN1, PKI-alpha, and protein kinase (cAMP-dependent, catalytic) inhibitor alpha.