ERAP1

Endoplasmic reticulum aminopeptidase 1 Q9NZ08 ERAP1_HUMAN
Protein Coding Chr 5 5q15 Swiss-Prot reviewed Entrez 51752
Mutations
712
CL 108 · Tissue 589
Samples
315
CL 60 · Tissue 247
Peptides
251
unique mutant peptides
Transcripts
2
isoforms mutated

Stats by Source

Total, split by cell line (COSMIC CL / DepMap / PubMed) vs tissue (COSMIC primary tissue)

How the counts split by source
Stats by Source

Total = all mutations for this gene across every source.

Cell line = COSMIC Cell Lines Project + DepMap + PubMed.

Tissue = COSMIC primary-tissue (patient tumour) samples.

Total can exceed cell line + tissue: COSMIC tissue-derived models sit only in global, and a peptide can be shared across both.

TotalCell lineTissue
Mutations712108589
Samples31560247
Peptides25147200

Function

ERAP1 · Endoplasmic reticulum aminopeptidase 1

The protein encoded by this gene is an aminopeptidase involved in trimming HLA class I-binding precursors so that they can be presented on MHC class I molecules. The encoded protein acts as a monomer or as a heterodimer with ERAP2. This protein may also be involved in blood pressure regulation by inactivation of angiotensin II. Three transcript variants encoding two different isoforms have been found for this gene.[provided by RefSeq, Oct 2010].

Isoforms & Proteins

2 transcripts · UniProt mapping is sequence-verified (AA-safe)

About the isoform mapping
Isoforms & Proteins

Each Ensembl transcript (ENST) this gene is mutated on, with its matched UniProt accession.

The mapping is sequence-verified: the UniProt sequence is identical to the transcript translation, so amino-acid positions line up exactly. A * marks an unreviewed (TrEMBL) entry.

Counts are mutations and unique mutant peptides on each transcript.

TranscriptUniProtMutationsPeptides
ENST00000443439 Q9NZ08 375 245
ENST00000296754 Q9NZ08-2 337 232

Gene Properties

Type
Protein Coding
Chromosome
5
Cytoband
5q15
Entrez ID
Aliases
A-LAPALAPAPPILSARTS-1ARTS1ERAAP

Recurrent Mutations

All 245 amino-acid changes on canonical ENST00000443439 · needle height = samples · drag the mini-map to zoom

What this lollipop shows
Recurrent Mutations

A lollipop / needle plot – the standard way to show recurrent mutations along a protein (as used by cBioPortal and MutationMapper).

X-axis = amino-acid position in the protein.

Needle height & head size = how often that exact amino-acid change was observed (its recurrence). Tall/large heads are mutational hotspots.

The most recurrent changes are labelled; hover any needle for the change, position and counts.

Mutation frequency across cancer types

% of samples with a missense/complex mutation in ERAP1 · cell line vs tissue

How this frequency is counted
Cancer-type mutation frequency

For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in ERAP1 – counted as distinct samples (a sample counts once no matter how many mutations it has).

Split into cell line and tissue; each cell shows mutated / total and the percentage. Cohorts with <20 samples are omitted. Ordered by combined frequency.

Cancer typeCell linesTissue samples
T-Lymphoblastic Leukemia
4/40 10%
0/0 0%
Gastrointestinal Stromal Tumour
0/0 0%
6/133 5%
Endometrial Carcinoma
6/42 14%
23/612 4%
Burkitts Lymphoma
3/32 9%
4/196 2%
Acute Myeloid Leukemia
2/90 2%
0/0 0%
Colorectal Carcinoma
10/143 7%
44/3239 1%
Melanoma
5/210 2%
26/1899 1%
Gastric Carcinoma
2/74 3%
25/1809 1%
Non-Small Cell Lung Carcinoma
6/304 2%
14/1390 1%
Germ Cell Tumour
0/25 0%
2/169 1%
Rhabdomyosarcoma
1/33 3%
1/171 1%
Other Solid Cancers
1/94 1%
14/1515 1%
Cervical Carcinoma
0/35 0%
4/422 1%
Hepatocellular Carcinoma
2/46 4%
16/2210 1%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Bladder Carcinoma
0/58 0%
6/956 1%
Neuroendocrine Tumour
2/154 1%
2/577 0%
Other Sarcomas
0/69 0%
4/699 1%
Esophageal Carcinoma
1/23 4%
3/769 0%
Esophageal Squamous Cell Carcinoma
3/51 6%
10/2550 0%
Squamous Cell Lung Carcinoma
1/57 2%
3/810 0%
Mesothelioma
1/62 2%
0/165 0%
Thyroid Gland Carcinoma
1/45 2%
6/1592 0%
Meningioma
1/3 33%
0/252 0%
Head and Neck Carcinoma
0/85 0%
6/1574 0%
Ovarian Carcinoma
1/109 1%
3/998 0%
Non-Cancerous
0/104 0%
3/830 0%
Ewings Sarcoma
0/63 0%
1/262 0%
Plasma Cell Myeloma
1/44 2%
0/305 0%
Pancreatic Carcinoma
2/89 2%
3/1611 0%

Mutation Distribution

Where ERAP1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in ERAP1 were found in each tissue, across the whole database.

Each bar is a tissue (cell-line and tissue names are merged to the standard tissue), split into cell line and tissue (patient tumour) contributions.

This shows the cancer-context where this gene is recurrently altered.

GTEx Expression

Median TPM across 54 healthy tissues

GTEx Portal ↗
About the expression data
GTEx Expression

Median gene expression (TPM) in normal, non-cancer human tissues from the GTEx project.

Useful for judging tumour specificity – a strong neoantigen target ideally comes from a gene with low expression in healthy tissues.

Scroll or drag the mini-axis below the chart to browse all tissues.

Mutations

All 712 mutations in ERAP1

About the mutation list
Mutations

Every mutation record for this gene, across all samples and sources.

The Sample column links to the cell line (cell-line samples) or the tissue type (tissue samples).

Use the Type / Source filters, the search box, and column sorting to explore; each CAN-IMMUNE ID opens the full mutation & peptide view.

IDSampleTranscriptAA Change CDSTypeSourceMutant PeptideWild-type Peptide