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Cyclic GMP
Guanosine Cyclic 3,5 Monophosphate; Guanosine Cyclic Monophosphate; Guanosine Cyclic-3',5'-Monophosphate; 3',5'-Monophosphate, Guanosine Cyclic; Cyclic 3',5'-Monophosphate, Guanosine; Cyclic Monophosphate, Guanosine
Guanosine cyclic 3',5'-(hydrogen phosphate). A guanine nucleotide containing one phosphate group which is esterified to the sugar moiety in both the 3'- and 5'-positions. It is a cellular regulatory agent and has been described as a second messenger. Its levels increase in response to a variety of hormones, including acetylcholine, insulin, and oxytocin and it has been found to activate specific protein kinases. (From Merck Index, 11th ed)