Gene Information
Gene NameLNPEP
OrganismHomo sapiens (Human)
Gene Length1025
Protein NamesLeucyl-cystinyl aminopeptidase (Cystinyl aminopeptidase) (EC 3.4.11.3) (Insulin-regulated membrane aminopeptidase) (Insulin-responsive aminopeptidase) (IRAP) (Oxytocinase) (OTase) (Placental leucine aminopeptidase) (P-LAP) [Cleaved into: Leucyl-cystinyl aminopeptidase, pregnancy serum form]
Target NameNA
Target TypeNA
Gene Age950 ( ENSG00000113441 )
Evolutionary StageCellular_organisms
AlphaFoldDBQ9UIQ6
Gene CardLNPEP
Uniprot IDQ9UIQ6
PfamPF11838; PF01433; PF17900
In ASDyes
Allosteric Predictionyes (0.317108016)
Ortholog in AnimalsAlpaca_ LNPEP ( ortholog_one2one )
Dog_ LNPEP ( ortholog_one2one )
GuineaPig_ LNPEP ( ortholog_one2one )
Macaque_ LNPEP ( ortholog_one2one )
Mouse_ Lnpep ( ortholog_one2one )
Pig_ LNPEP ( ortholog_one2one )
Rat_ Lnpep ( ortholog_one2one )
Rabbit_ LNPEP ( ortholog_one2one )
OhnologsNA
ParalogsRNPEPL1, NPEPPS, ERAP1, ENPEP, AOPEP, LTA4H, TRHDE, LVRN, ANPEP, RNPEP, ERAP2
TissueNA
Tissue SpecificityHighly expressed in placenta, heart, kidney and small intestine. Detected at lower levels in neuronal cells in the brain, in skeletal muscle, spleen, liver, testes and colon. {ECO:0000269|PubMed:11389728, ECO:0000269|PubMed:8550619, ECO:0000269|PubMed:9177475}.
Pharmacological Animal ModelsNULL(Chimpanzee);NULL(Mouse);NULL(Rat);0.04(Rabbit)
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 4P8Q  (X-ray  3.02A  4PJ6  (X-ray  2.96A  4Z7I  (X-ray  3.31A  5C97  (X-ray  3.37A  5JHQ  (X-ray  3.20A  5MJ6  (X-ray  2.53A  7ZYF  (X-ray  2.81A 
DBSNP rs3797799  rs12520455  rs2303138  rs17087233  rs11746232 
Subcellular location [CC]Cell membrane {ECO:0000269|PubMed:11389728};
Single-pass type II membrane protein {ECO:0000269|PubMed:11389728}. Note=In brain only the membrane-bound form is found. The protein resides in intracellular vesicles together with GLUT4 and can then translocate to the cell surface in response to insulin and/or oxytocin. Localization may be determined by dileucine internalization motifs, and/or by interaction with tankyrases.;
[Leucyl-cystinyl aminopeptidase, pregnancy serum form]: Secreted. Note=During pregnancy serum levels are low in the first trimester, rise progressively during the second and third trimester and decrease rapidly after parturition.
Mouse PG classificationNA
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