OprL is an alias for the gene, Opiate receptor-like 1, in humans. Other names include: Nociceptin receptor; Kappa-type 3 opioid receptor; KOR-3; Orphanin FQ receptor; LC132 receptor-like; kappa3-related opioid receptor; NOCIR; OOR; ORL1. The encoded protein has an amino acid length of 370 and a mass of 40.7 kDa. Other isoforms may exist. OprL is a member of the G-protein coupled receptor 1 family. This gene shares homology with other species, including: Rat, Zebrafish, Frog, Chicken.