Tags: Protein.
5-hydroxytryptamine receptor 3A is a protein that in humans is encoded by the HTR3A gene.The product of this gene belongs to the ligand-gated ion channel receptor superfamily. This gene encodes subunit A of the type 3 receptor for 5-hydroxytryptamine (serotonin) a biogenic hormone that functions as a neurotransmitter a hormone and a mitogen. This receptor causes fast depolarizing responses in neurons after activation.