Definitions for "Cyclic AMP"
cyclized form of the nucleotide adenosine monophosphate that serves as a signaling molecule in many kinds of cells. In bacteria, cAMP is low in cells that are grown in media containing glucose but cAMP levels increase in cells starved for glucose. As cAMP levels rise, cAMP binds to CRP, and the complex can bind to the promoters of genes such as the lac operon, that are involved in catabolism of nutrients other than glucose.
A modified version of AMP in which an intramolecular phosphodiester bond links the 5' and 3' carbons.
Cyclic 3'-5' adenosine monophosphate - a nucleotide derived from ATP thorough the action of adenylyl cyclase. Used as a second messenger by a number of hormones.