High affinity cGMP-specific 3',5'-cyclic phosphodiesterase 9A (PDE9A)

Specifically hydrolyzes the second messenger cGMP, which is a key regulator of many important physiological processes. Highly specific: compared to other members of the cyclic nucleotide phosphodiesterase family, has the highest affinity and selectivity for cGMP (PubMed:9624146, PubMed:18757755, PubMed:21483814).

Specifically regulates natriuretic-peptide- dependent cGMP signaling in heart, acting as a regulator of cardiac hypertrophy in myocytes and muscle. Doesn't regulate nitric oxide-dependent cGMP in heart (PubMed:25799991).