ADCY6 (adenylate cyclase 6) catalyzes the formation of cyclic adenosine monophosphate (cAMP), a critical second messenger in G protein-coupled receptor signaling cascades 1. The enzyme plays essential roles in multiple physiological systems, including cardiovascular function, peripheral nervous system myelination, and immune regulation. In the cardiovascular system, ADCY6 functions downstream of beta-adrenergic receptors and contributes to cardiac contractility and blood pressure regulation 2. A hyperfunctional variant (A674S) is associated with increased blood pressure and hyperdynamic cardiovascular responses 2. ADCY6 has an unexpected role in peripheral nervous system myelination, as mutations cause severe arthrogryposis multiplex congenita with axoglial defects 1. The protein appears essential for proper Schwann cell myelination through cAMP pathway activation 1. Recent studies suggest therapeutic potential, as forskolin activation of ADCY6/cAMP/PKA signaling alleviates hypertrophic cardiomyopathy 3. Additionally, ADCY6 methylation status correlates with immune cell infiltration in luminal breast cancer, where hypermethylation and downregulation associate with better prognosis 4. Disease associations include lethal congenital contracture syndrome 8, highlighting its critical developmental importance.