cAMP 是3′,5′腺苷—磷酸(Cyclic Adenosine 3′,5′—Monophosphate)的缩写,通常称环—磷酸腺苷。cGMP 是3′,5′鸟苷—磷酸(Cyclic Guanosine 3′,5′—Monophosphate)的缩写,通常称环—磷酸鸟苷。它们都是环核苷酸的一种。cAMP 是细胞膜上的一种特异性腺苷酸环化酶催化细胞内的三磷酸腺苷(ATP)分解产生;cGMP 则由特异的鸟苷酸环化酶催化三磷酸鸟苷(GPT)生成。其来源于组织细胞(主要是肺和小肠), cAMP is an abbreviation for 3 ’, 5’ Cyclic Adenosine 3 ’, 5’-Monophosphate, commonly referred to as cyclic adenosine monophosphate. cGMP is an abbreviation for 3 ’, 5’, 5’-Monophosphate, commonly referred to as cyclic-guanosine. They are all kind of cyclic nucleotides. cAMP is a specific adenylate cyclase on the cell membrane that catalyzes the breakdown of adenosine triphosphate (ATP) in cells; cGMP is produced by guanosine triphosphate (GPT) catalyzed by a specific guanylate cyclase. It is derived from tissue cells (mainly the lungs and small intestine)