HelmholtzZentrum munich

Connecting genetic risk to disease endpoints through the human blood plasma proteome


Proteome annotation
Locus annotations

Locus 290

Top associations per target

Target cis/​trans Study SNP SNP location Maj/​min allele MAF N βinv seinv Pinv fclog Plog Praw
ARTS1 cis Discovery rs6556937 5:95,985,282 C/T 0.15 990 0.479 0.061 8.4×10-15 1.220 7×10-14 1.2×10-14
ARTS1 cis Replication rs26483 5:96,016,616 G/A 0.29 337 0.257 0.075 0.001 1.070 0.084 0.001


Regional association plots

Endoplasmic reticulum aminopeptidase 1 (ARTS1)


Boxplots and histograms for top associations

Endoplasmic reticulum aminopeptidase 1 (ARTS1)

inverse-normalized probe levels log2 transformed probe levels raw probe levels
Discovery study
Replication study

Endoplasmic reticulum aminopeptidase 1 (ARTS1)

Target (abbrv.) ARTS1
Target (full name) Endoplasmic reticulum aminopeptidase 1
Somalogic ID (Sequence ID) SL007729 (4964-67_1)
Entrez Gene Symbol ERAP1
UniProt ID Q9NZ08
UniProt Comment
  • 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.
  • Antigen Presentation: Folding, assembly and peptide loading of class I MHC

All locus annotations are based on the sentinel SNP (rs6556937).
Download the detailed results of SNiPA's block annotation (PDF)

Linked genes

Genes hit or close-by
eQTL genes


Results from other genome-wide association studies

Trait P Study Source
Gene expression of CAST in peripheral blood monocytes 2.2×10-11 20502693 (PMID) GRASP2 eQTL
Gene expression of CAST in CEU-CHB-JPT lymphoblastoid cell lines 3.2×10-11 17873874 (PMID) GRASP2 eQTL