PKA Inhibitor (5-24) (trifluoroacetate salt)

PKI (5-24) is a potent synthetic peptide inhibitor of cAMP-dependent protein kinase (PKA), with a Ki of 2.3 nM. It functions by mimicking the protein substrate and binding to the catalytic subunit's active site. This inhibitor is widely used in biochemical and cell-based assays to study PKA signaling pathways in vitro.