5-HT2A受体位于大脑皮层第4层内,参与磷酸肌醇的水解。
    5-HTR2A受体与睡眠有密切关系.
    也有学者认为：5-HT2A受体与精神分裂症及脑神经退行性改变有关。5-HT2A受体可能成为非典型抗精神病药物作用的靶受体。

    5HT2A receptor is one of the several different receptors for 5-hydroxytryptamine (serotonin), a biogenic hormone that functions as a neurotransmitter, a hormone, and a mitogen. 5HT2A receptor belongs to the G-protein coupled receptor 1 family and mediates its action by association with G proteins that activate a phosphatidylinositol-calcium second messenger system. This receptor is involved in tracheal smooth muscle contraction, bronchoconstriction, and control of aldosterone production. 5HT2A receptor is an integral membrane protein which localizes to the post-synaptic thickening of axo-dendritic synapses. 5HT2A receptor protein contains a PDZ domain-binding motif which is involved in the interaction with INADL, CASK, APBA1, DLG1 and DLG4.
    mol wt:52kDa
    Other Aliases:
    5-hydroxytryptamine receptor 2A; 5-hydroxytryptamine receptor; Serotonin receptor 2A; 5-HT-2A; 5-HT-2; HTR2A; Htr2a