Related Research Articles
Neuropeptide Y receptors are a family of receptors belonging to class A G-protein coupled receptors and they are activated by the closely related peptide hormones neuropeptide Y, peptide YY and pancreatic polypeptide. These receptors are involved in the control of a diverse set of behavioral processes including appetite, circadian rhythm, and anxiety.
The neuropeptide S receptor (NPSR) is a member of the G-protein coupled receptor superfamily of integral membrane proteins which binds neuropeptide S (NPS). It was formerly an orphan receptor, GPR154, until the discovery of neuropeptide S as the endogenous ligand. Increased expression of this gene in ciliated cells of the respiratory epithelium and in bronchial smooth muscle cells is associated with asthma. This gene is a member of the G protein-coupled receptor 1 family and encodes a plasma membrane protein. Mutations in this gene have also been associated with this disease.
The neuropeptide B/W receptors are members of the G-protein coupled receptor superfamily of integral membrane proteins which bind the neuropeptides B and W. These receptors are predominantly expressed in the CNS and have a number of functions including regulation of the secretion of cortisol.
The neuropeptide FF receptors are members of the G-protein coupled receptor superfamily of integral membrane proteins which bind the pain modulatory neuropeptides AF and FF. The Neuropeptide FF receptor family is a member of the G protein-coupled receptor superfamily containing two subtypes, NPFF1 and NPFF2, which exhibit a high affinity for Neuropeptide FF (NPFF) peptides. NPFF1 is broadly distributed in the central nervous system with the highest levels found in the limbic system and the hypothalamus. NPFF2 is present in high density, particularly in mammals in the superficial layers of the spinal cord where it is involved in nociception and modulation of opioid functions. These receptors participate to the modulation of opioid receptor function in the brain and spinal cord, and can either reduce or increase opioid receptor function depending which tissue they are released in, reflecting a complex role for neuropeptide FF in pain responses.
The muscarinic acetylcholine receptor M4, also known as the cholinergic receptor, muscarinic 4 (CHRM4), is a protein that, in humans, is encoded by the CHRM4 gene.
Neuropeptides B/W receptor 1, also known as NPBW1 and GPR7, is a human protein encoded by the NPBWR1 gene. As implied by its name, it and related gene NPBW2 are transmembranes protein that bind Neuropeptide B (NPB) and Neuropeptide W (NPW), both proteins expressed strongly in parts of the brain that regulate stress and fear including the extended amygdala and stria terminalis. When originally discovered in 1995, these receptors had no known ligands and were called GPR7 and GPR8, but at least three groups in the early 2000s independently identified their endogenous ligands, triggering the name change in 2005.
Neuropeptides B/W receptor 2, also known as NPBW2, is a human protein encoded by the NPBWR2 gene.
Orexin receptor type 1 (Ox1R or OX1), also known as hypocretin receptor type 1 (HcrtR1), is a protein that in humans is encoded by the HCRTR1 gene.
Neuropeptide Y receptor type 1 is a protein that in humans is encoded by the NPY1R gene.
Neuropeptide Y receptor type 2 (Y2R) is a member of the neuropeptide Y receptor family of G-protein coupled receptors, that in humans is encoded by the NPY2R gene.
Neuropeptide FF receptor 2, also known as NPFF2 is a human protein encoded by the NPFFR2 gene.
Neuropeptide FF receptor 1, also known as NPFF1 is a human protein, encoded by the NPFFR1 gene.
Pyroglutamylated RFamide peptide receptor also known as orexigenic neuropeptide QRFP receptor or G-protein coupled receptor 103 (GPR103) is a protein that in humans is encoded by the QRFPR gene.
Rhodopsin-like receptors are a family of proteins that comprise the largest group of G protein-coupled receptors.
This gene encodes a member of the G protein-coupled receptor kinase subfamily of the Ser/Thr protein kinase family, and is most highly similar to GRK4 and GRK5. The protein phosphorylates the activated forms of G protein-coupled receptors to regulate their signaling.
NPFF Neuropeptide FF (FLFQPQRFa) is a mammalian amidated neuropeptide originally isolated from bovine brain and characterized as a pain-modulating peptide, with anti-opioid activity on morphine-induced analgesia.
NPW is a gene that in humans encodes Neuropeptide W protein.
RF(Arg-Phe)amide family 26 amino acid peptide, also known as P518, is a human protein.
Neuropeptide S (NPS) is a neuropeptide found in human and mammalian brain, mainly produced by neurons in the amygdala and between Barrington's nucleus and the locus coeruleus, although NPS-responsive neurons extend projections into many other brain areas. NPS binds specifically to a G protein-coupled receptor, NPSR. Animal studies show that NPS suppresses anxiety and appetite, induces wakefulness and hyperactivity, including hyper-sexuality, and plays a significant role in the extinction of conditioned fear. It has also been shown to significantly enhance dopamine activity in the mesolimbic pathway, and inhibits motility and increases permeability in neurocrine fashion acting through NO in the myenteric plexus in rats and humans.
Neuropeptide W or preprotein L8 is a short human neuropeptide. Neuropeptide W acts as a ligand for two neuropeptide B/W receptors, NPBWR1 and NPBWR2, which are integrated in GPCRs family of alpha-helical transmembrane proteins.
References
- ↑ Singh G, Davenport AP (2006). "Neuropeptide B and W: neurotransmitters in an emerging G-protein-coupled receptor system". Br. J. Pharmacol. 148 (8): 1033–41. doi:10.1038/sj.bjp.0706825. PMC 1752024 . PMID 16847439.
- ↑ Elshourbagy NA, Ames RS, Fitzgerald LR, Foley JJ, Chambers JK, Szekeres PG, Evans NA, Schmidt DB, Buckley PT, Dytko GM, Murdock PR, Milligan G, Groarke DA, Tan KB, Shabon U, Nuthulaganti P, Wang DY, Wilson S, Bergsma DJ, Sarau HM (2000). "Receptor for the pain modulatory neuropeptides FF and AF is an orphan G protein-coupled receptor". J. Biol. Chem. 275 (34): 25965–71. doi: 10.1074/jbc.M004515200 . PMID 10851242.
- ↑ Vendelin J, Pulkkinen V, Rehn M, Pirskanen A, Räisänen-Sokolowski A, Laitinen A, Laitinen LA, Kere J, Laitinen T (2005). "Characterization of GPRA, a novel G protein-coupled receptor related to asthma". Am. J. Respir. Cell Mol. Biol. 33 (3): 262–70. doi:10.1165/rcmb.2004-0405OC. PMID 15947423.
- ↑ Larhammar D, Salaneck E (2004). "Molecular evolution of NPY receptor subtypes". Neuropeptides. 38 (4): 141–51. doi:10.1016/j.npep.2004.06.002. PMID 15337367. S2CID 43696257.
