Cyclic GMP

**Semantic type:** Nucleic Acid, Nucleoside, or Nucleotide

**Definition:** A cellular regulatory agent that acts as a second messenger. Its levels increase in response to a variety of signals (acetylcholine, insulin, oxytocin) and activates specific protein kinases.

**Synonyms:** - CYCLIC GMP - Guanosine Cyclic 3',5'-(Hydrogen Phosphate) - cGMP - cyclic 3',5'-guanosine monophosphate