Muscarinic acetylcholine receptor M3
Protein and coding gene in humans / From Wikipedia, the free encyclopedia
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The muscarinic acetylcholine receptor, also known as cholinergic/acetylcholine receptor M3, or the muscarinic 3, is a muscarinic acetylcholine receptor encoded by the human gene CHRM3.[5]
The M3 muscarinic receptors are located at many places in the body, e.g., smooth muscles, the bladder, the endocrine glands, the exocrine glands, lungs, pancreas and the brain. In the CNS, they induce emesis. Muscarinic M3 receptors are expressed in regions of the brain that regulate insulin homeostasis, such as the hypothalamus and dorsal vagal complex of the brainstem.[6] These receptors are highly expressed on pancreatic beta cells and are critical regulators of glucose homoestasis by modulating insulin secretion.[7] In general, they cause smooth muscle contraction and increased glandular secretions.[5]