Prolactin-releasing peptide receptor (version 2019.4) in the IUPHAR/BPS Guide to Pharmacology Database
The precursor (PRLH, P81277) for PrRP generates 31 and 20-amino-acid versions. QRFP43 (named after a pyroglutamylated arginine-phenylalanine-amide peptide) is a 43 amino acid peptide derived from QRFP (P83859) and is also known as P518 or 26RFa. RFRP is an RF amide-related peptide  derived from a FMRFamide-related peptide precursor (NPVF, Q9HCQ7), which is cleaved to generate neuropeptide SF, neuropeptide RFRP-1, neuropeptide RFRP-2 and neuropeptide RFRP-3 (neuropeptide NPVF).
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