Used in biomedical research to quantify levels of Protein Kinase A catalytic subunit alpha in cell lysates, tissue extracts, and biological fluids. Enables investigation of PKA signaling pathways involved in metabolism, gene expression, cell division, and apoptosis. Commonly applied in studies related to cancer, endocrine disorders, and neurological diseases. Supports high-throughput screening and validation of therapeutic targets by providing a reliable, sensitive, and specific method for detecting active PKA in experimental models.