Cyclic GMP/Definition
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A guanine nucleotide that 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.
This definition is at least in part based on: Anonymous (2024), Cyclic GMP (English). Medical Subject Headings. U.S. National Library of Medicine.