====== 5-HT1A receptor ====== The serotonin 1A receptor (or 5-HT1A receptor) is a subtype of [[serotonin receptor]] (5-HT receptor) that binds the neurotransmitter serotonin (5-hydroxytryptamine, 5-HT). It is a G protein-coupled receptor (GPCR), coupled to the Gi protein, that mediates inhibitory neurotransmission. The serotonin 1A receptor is encoded by the HTR1A gene. 5-HT1A agonists and dyskinesia in [[Parkinson's disease]]: a pharmacological perspective ((Huot P. 5-HT(1A) agonists and dyskinesia in Parkinson's disease: a pharmacological perspective. Neurodegener Dis Manag. 2018 Jul 24. doi: 10.2217/nmt-2018-0017. [Epub ahead of print] PubMed PMID: 30040029. )).