has_participant has participant adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway inhibition of adenylate cyclase activity by muscarinic acetylcholine receptor signaling pathway muscarinic acetylcholine receptor, adenylate cyclase inhibiting pathway inhibition of adenylate cyclase activity by G-protein coupled acetylcholine receptor signaling pathway muscarinic acetylcholine receptor, adenylyl cyclase inhibiting pathway inhibition of adenylate cyclase activity by muscarinic acetylcholine receptor signalling pathway biological_process An adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway initiated by acetylcholine binding to its receptor, and ending with the regulation of a downstream cellular process. GO:0007197 G protein-coupled acetylcholine receptor signaling pathway muscarinic acetylcholine receptor M2 (human) muscarinic acetylcholine receptor M4 (human) muscarinic acetylcholine receptor M5 (human) muscarinic acetylcholine receptor M1 (human) muscarinic acetylcholine receptor M3 (human) histamine H4 receptor (human)