Orexin receptor 1 (OX1R) and orexin receptor 2 (OX2R) subtypes make up the family of G protein-coupled receptors known as orexin receptors (hypocretin receptors). Orexin receptors play a role in the control of the sleep/wake cycle and are expressed throughout the central nervous system.
Orexin B binds to OX2 with a higher affinity than OX1R, while orexin A binds to OX1R and OX2R with similar affinities. The prefrontal and infralimbic cortex, hippocampus, paraventricular thalamic nucleus, and locus coeruleus are the primary sites of OX1R expression. The cerebral cortex, septal nuclei, lateral hypothalamus, hippocampus, and hypothalamic nuclei are where OX2R is primarily found.
Gq/11 connects the OX1R and OX2R receptors to the activation of phospholipase C, which raises intracellular Ca2+ levels. Furthermore, OX2R connects to the cAMP pathways via Gs and Gi/o.
Structure | Cat No. | Product Name | CAS No. | Product Description |
---|---|---|---|---|
V6669 | Seltorexant | 1293281-49-8 | Seltorexant (also known as MIN-202and JNJ-42847922), is a novel, potent and selective orexin-2 receptor antagonist. |