Gene Information
Gene NameOPRL1
OrganismHomo sapiens (Human)
Gene Length370
Protein NamesNociceptin receptor (Kappa-type 3 opioid receptor) (KOR-3) (Orphanin FQ receptor)
Target Namenociceptin receptor
Target TypeClinical trial target
Gene Age544 ( ENSG00000125510 )
3 ( ENSG00000277044 )
Evolutionary StageEumetazoa
AlphaFoldDBP41146
Gene CardOPRL1
Uniprot IDP41146
PfamPF00001
In ASDno
Allosteric Predictionyes (0.616107562)
Ortholog in AnimalsAlpaca_ OPRL1 ( ortholog_one2one )
GuineaPig_ OPRL1 ( ortholog_one2one )
Macaque_ OPRL1 ( ortholog_one2one )
Mouse_ Oprl1 ( ortholog_one2one )
Pig_ OPRL1 ( ortholog_one2one )
Rat_ Oprl1 ( ortholog_one2one )
OhnologsOPRK1, OPRM1, OPRD1, SSTR1, SSTR2
ParalogsSSTR5, SSTR4, NPBWR1, GPR149, OPRM1, OPRK1, PTGDR2, SSTR3, CMKLR2, SSTR1, LTB4R, LTB4R2, KISS1R, UTS2R, NPBWR2, SSTR2, OPRD1
TissueNA
Tissue SpecificityDetected in blood leukocytes. {ECO:0000269|PubMed:7500847}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 4EA3  (X-ray  3.01A  5DHG  (X-ray  3.00A  5DHH  (X-ray  3.00A 
DBSNP NA 
Subcellular location [CC]Cell membrane;
Multi-pass membrane protein. Cytoplasmic vesicle. Note=Ligand binding leads to receptor internalization into cytoplasmic vesicles, decreasing the amount of available receptor at the cell surface. Internalization requires phosphorylation at Ser-363. Can recycle to the cell membrane.
Mouse PG classificationNA
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