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HTR3A | 5-hydroxytryptamine receptor 3A; This is one of the several different receptors for 5- hydroxytryptamine (serotonin), a biogenic hormone that functions as a neurotransmitter, a hormone, and a mitogen. This receptor is a ligand- gated ion channel, which when activated causes fast, depolarizing responses in neurons. It is a cation-specific, but otherwise relatively nonselective, ion channel. (456 aa) | ||||
HTR3B | 5-hydroxytryptamine receptor 3B; Belongs to the ligand-gated ion channel (TC 1.A.9) family. (442 aa) |