Muscarinic acetylcholine receptors are actylcholine receptors and they are important for biochemistry.
Muscarinic acetylcholine receptors , or mAChRs , are acetylcholine receptors that form G protein-receptor complexes in the cell membranes of certain neurons and other cells . Their counterparts are nicotinic acetylcholine receptors ( nAChRs ) , receptor ion channels that are also important in the autonomic nervous system . Muscarinic antagonist . Acetylcholine ( often abbreviated ACh ) is a neurotransmitter whose receptor is a protein found in synapses and other cell membranes .