Guanylyl cyclase is an enzyme that catalyzes the conversion of guanosine triphosphate (GTP) into cyclic guanosine monophosphate (cGMP). This signaling molecule plays a crucial role in various physiological processes, including smooth muscle relaxation, neurotransmission, and cell growth and differentiation. Research in the field of guanylyl cyclase focuses on understanding the regulation and function of this enzyme in different tissues and cell types. Scientists study the various pathways that control guanylyl cyclase activity, as well as the downstream effects of cGMP signaling on cellular processes. This research has important implications for the development of new therapies for various diseases, including cardiovascular disorders, neurodegenerative diseases, and cancer.