| Tissue Specificity | Predominantly expressed in striatum and Purkinje cells. |
| Post Translational Modifications | Phosphorylated. Desensitization of the receptor may be mediated by its phosphorylation. Palmitoylated. |
| Function | G-protein coupled receptor for 5-hydroxytryptamine (serotonin). Also functions as a receptor for ergot alkaloid derivatives, various anxiolytic and antidepressant drugs and other psychoactive substances, such as lysergic acid diethylamide (LSD). Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of downstream effectors, such as adenylate cyclase. HTR1B is coupled to G(i)/G(o) G alpha proteins and mediates inhibitory neurotransmission by inhibiting adenylate cyclase activity. Arrestin family members inhibit signaling via G proteins and mediate activation of alternative signaling pathways. Regulates the release of 5-hydroxytryptamine, dopamine and acetylcholine in the brain, and thereby affects neural activity, nociceptive processing, pain perception, mood and behavior. Besides, plays a role in vasoconstriction of cerebral arteries. |
| Peptide Name | 5-Hydroxytryptamine Receptor 1b5-Ht-1b5-Ht1bSerotonin Receptor 1b |
| Database Links | Reactome: R-MMU-390666Reactome: -MMU-418594 |
| Cellular Localisation | Cell MembraneMulti-Pass Membrane Protein |
| Alternative Peptide Names | 5-Hydroxytryptamine Receptor 1b protein5-Ht-1b protein5-Ht1b proteinSerotonin Receptor 1b proteinHtr1b protein5ht1b protein |
Information sourced from Uniprot.org
