NCIt definition : Human Soluble Guanylate Cyclases (Adenylyl Cyclase 4/Guanylyl Cyclase Family) are
heterodimeric (alpha/beta) nitric oxide-activated cytoplasmic enzymes that catalyze
conversion of GTP to cGMP second messenger. The main receptors for nitric oxide in
the cardiovascular system and for nitrovasodilator drugs, alpha/beta interaction is
required for guanylyl cyclase activity. (NCI);