Membrane guanylate cyclase

Membrane guanylate cyclase is a type of enzyme located on the surface of cells that plays a key role in converting GTP, a form of energy molecule, into cyclic GMP (cGMP). This process is crucial for transmitting signals within the body, particularly in the eye for visual signaling and in blood vessels for regulating dilation. When specific signals, like molecules from hormones or light, bind to these receptors, they activate the enzyme, leading to the production of cGMP. This molecule then triggers various cellular responses, helping cells respond appropriately to their environment.