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Reference.org
Muscarinic acetylcholine receptor M2
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<p>The muscarinic acetylcholine receptor M2, also known as the cholinergic receptor, muscarinic 2, is a <a href="/facts/Muscarinic_acetylcholine_receptor/caIdoqrW">muscarinic acetylcholine receptor</a> that in humans is encoded by the <i>CHRM2</i> <a href="/facts/Gene/e1swwPY6">gene</a>. Multiple alternatively spliced transcript variants have been described for this gene. It is <a href="/facts/Gi_alpha_subunit/ua0jmvM5">Gi</a>-coupled, reducing intracellular levels of <a href="/facts/Cyclic_adenosine_monophosphate/flK2vwUe">cAMP</a>. </p>