Summary
Name | ![]() |
Full Name | Endoplasmic reticulum aminopeptidase 1 |
Synonyms | ARTS-1, Adipocyte-derived leucine aminopeptidase, A-LAP, Aminopeptidase PILS, Puromycin-insensitive leucyl-specific aminopeptidase, PILS-AP, Type 1 tumor necrosis factor receptor shedding aminopeptidase regulator | APPILS, ARTS1, KIAA0525 |
Primary ID | Q9NZ08 |
Links | ![]() ![]() ![]() |
Type | protein |
Relations | 2 |
Pathways | MHC class I antigen presentation |
Function | Aminopeptidase that plays a central role in peptide trimming, a step required for the generation of most HLA class I-binding peptides. Peptide trimming is essential to customize longer precursor peptides to fit them to the correct length required for presentation on MHC class I molecules. Strongly prefers substrates 9-16 residues long. Rapidly degrades 13-mer to a 9-mer and then stops. Preferentially hydrolyzes the residue Leu and peptides with a hydrophobic C-terminus, while it has weak activity toward peptides with charged C-terminus. May play a role in the inactivation of peptide hormones. May be involved in the regulation of blood pressure through the inactivation of angiotensin II and/or the generation of bradykinin in the kidney. |
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Relations
Regulator | Mechanism | target | score ℹ | |
---|---|---|---|---|
+ | ERAP1 | up-regulates quantity ![]() |
peptide antigen | 0.8 |
Publications: | 1 | Organism: | Homo Sapiens | |
+ | ERAP1 | down-regulates quantity ![]() |
oligopeptide | 0.8 |
Publications: | 1 | Organism: | Homo Sapiens | |