Pyroglutamylated RFamide peptide receptor

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pyroglutamylated RFamide peptide receptor
Identifiers
SymbolsQRFPR; GPR103 ; AQ27; MGC149217; SP9155
External IDsOMIM606925 MGI2677633 HomoloGene18865 IUPHAR: QRFP GeneCards: QRFPR Gene
Orthologs
SpeciesHumanMouse
Entrez84109229214
EnsemblENSG00000186867ENSMUSG00000058400
UniProtQ96P65Q3UQ27
RefSeq (mRNA)NM_198179NM_198192
RefSeq (protein)NP_937822NP_937835
Location (UCSC)Chr 4:
122.47 - 122.52 Mb
Chr 3:
36.37 - 36.41 Mb
PubMed search[1][2]

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.[1][2]

Function

G protein-coupled receptors (GPCRs, or GPRs) contain 7 transmembrane domains and transduce extracellular signals through heterotrimeric G proteins.[1]

A 26-amino acid RF-amide peptide, P518 functions as a high-affinity ligand of GPR103. Both GPR103 and P518 precursor mRNA exhibited highest expression in brain.[3] The 43-amino acid QRFP peptide, a longer form of the P518 peptide is necessary to exhibit full agonistic activity with GPR103. Intravenous administration QRFP caused release of aldosterone, suggesting that QRFP and GPR103 regulate adrenal function.[4]

References

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Further reading

  • Lee DK, Nguyen T, Lynch KR; et al. (2001). "Discovery and mapping of ten novel G protein-coupled receptor genes". Gene. 275 (1): 83–91. doi:10.1016/S0378-1119(01)00651-5. PMID 11574155. 
  • Strausberg RL, Feingold EA, Grouse LH; et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMID 12477932. 
  • Jiang Y, Luo L, Gustafson EL; et al. (2003). "Identification and characterization of a novel RF-amide peptide ligand for orphan G-protein-coupled receptor SP9155". J. Biol. Chem. 278 (30): 27652–7. doi:10.1074/jbc.M302945200. PMID 12714592. 
  • Fukusumi S, Yoshida H, Fujii R; et al. (2004). "A new peptidic ligand and its receptor regulating adrenal function in rats". J. Biol. Chem. 278 (47): 46387–95. doi:10.1074/jbc.M305270200. PMID 12960173. 
  • Kimura K, Wakamatsu A, Suzuki Y; et al. (2006). "Diversification of transcriptional modulation: large-scale identification and characterization of putative alternative promoters of human genes". Genome Res. 16 (1): 55–65. doi:10.1101/gr.4039406. PMID 16344560. 
  • Takayasu S, Sakurai T, Iwasaki S; et al. (2006). "A neuropeptide ligand of the G protein-coupled receptor GPR103 regulates feeding, behavioral arousal, and blood pressure in mice". Proc. Natl. Acad. Sci. U.S.A. 103 (19): 7438–43. doi:10.1073/pnas.0602371103. PMID 16648250. 

External links

  • "Peptide P518 Receptor". IUPHAR Database of Receptors and Ion Channels. International Union of Basic and Clinical Pharmacology. 

This article incorporates text from the United States National Library of Medicine, which is in the public domain.

  1. 1.0 1.1 "Entrez Gene: GPR103 G protein-coupled receptor 103". 
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