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CHRM2 is a muscarinic acetylcholine GPCR primarily expressed in the heart and brainstem, coupled to Gi/o. Ligand activation suppresses adenylate cyclase and reduces intracellular cAMP. It regulates cardiac and neuronal activity, serving as a key target for neurocardiovascular drug discovery. Our CHRM2 stable CHO-K1 cell lines have been validated in cAMP assays to support your drug discovery programs.