QRFP receptor in GtoPdb v.2023.1

Autor: Hubert Vaudry, Stefany D. Primeaux, Janet J. Maguire, Jérôme Leprince, Dan Larhammar, Riccarda Granata, Shoji Fukusumi, Stephen M. Foord, Anthony P. Davenport, Myrna Carlebur, Tom I. Bonner, Didier Bagnol
Rok vydání: 2023
Předmět:
Zdroj: IUPHAR/BPS Guide to Pharmacology CITE. 2023
ISSN: 2633-1020
DOI: 10.2218/gtopdb/f54/2023.1
Popis: The human gene encoding the QRFP receptor (nomenclature as agreed by the NC-IUPHAR Subcommittee on the QRFP receptor [19]; QRFPR, formerly known as the Peptide P518 receptor), previously designated as an orphan GPCR receptor was identified in 2001 by Lee et al. from a hypothalamus cDNA library [17]. However, the reported cDNA (AF411117) is a chimera with bases 1-127 derived from chromosome 1 and bases 155-1368 derived from chromosome 4. When corrected, QRFPR (also referred to as SP9155 or AQ27) encodes a 431 amino acid protein that shares sequence similarities in the transmembrane spanning regions with other peptide receptors. These include neuropeptide FF2 (38%), neuropeptide Y2 (37%) and galanin Gal1 (35%) receptors. QRFP receptor was identified as a Gs-coupled GPCR [6, 14] that's activated by the endogenous peptides QRFP43 (43RFa) and QRFP26 (26RFa) [6, 14, 11]. However, Gq- and Gi/o-mediated signaling was also reported [11, 25]. Two naturally occurring mutations in the human QRFP receptor lead to distinct and opposite 26RFa-evoked signaling bias [20].
Databáze: OpenAIRE