TAP1

Transporter 1, ATP binding cassette subfamily B member Q03518 TAP1_HUMAN
Protein Coding Chr 6 6p21.32 Swiss-Prot reviewed Entrez 6890
Mutations
312
CL 86 · Tissue 219
Samples
278
CL 79 · Tissue 195
Peptides
217
unique mutant peptides
Transcripts
3
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
Mutations31286219
Samples27879195
Peptides21757163

Function

TAP1 · Transporter 1, ATP binding cassette subfamily B member

The membrane-associated protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the MDR/TAP subfamily. Members of the MDR/TAP subfamily are involved in multidrug resistance. The protein encoded by this gene is involved in the pumping of degraded cytosolic peptides across the endoplasmic reticulum into the membrane-bound compartment where class I molecules assemble. Mutations in this gene may be associated with ankylosing spondylitis, insulin-dependent diabetes mellitus, and celiac disease. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2014].

Isoforms & Proteins

3 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
ENST00000383235 Q03518-2 244 186
ENST00000354258 Q03518 65 56
ENST00000643049 A0A2R8Y4Y0* 3 3

Gene Properties

Type
Protein Coding
Chromosome
6
Cytoband
6p21.32
Entrez ID
Aliases
ABC17ABCB2APT1D6S114EMHC1D1PSF-1

Recurrent Mutations

All 186 amino-acid changes on canonical ENST00000383235 · 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 TAP1 · 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 TAP1 – 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
5/40 12%
0/0 0%
Chronic Myelogenous Leukemia
2/25 8%
0/0 0%
Oral Cavity Carcinoma
2/54 4%
0/0 0%
Endometrial Carcinoma
3/42 7%
20/612 3%
Acute Myeloid Leukemia
2/90 2%
0/0 0%
Rhabdomyosarcoma
0/33 0%
3/171 2%
Hodgkins Lymphoma
2/16 12%
0/122 0%
Melanoma
6/210 3%
21/1899 1%
Colorectal Carcinoma
12/143 8%
31/3239 1%
Thyroid Gland Carcinoma
1/45 2%
18/1592 1%
Non-Small Cell Lung Carcinoma
13/304 4%
5/1390 0%
Burkitts Lymphoma
1/32 3%
1/196 1%
Cervical Carcinoma
0/35 0%
4/422 1%
Plasma Cell Myeloma
2/44 5%
1/305 0%
Ovarian Carcinoma
2/109 2%
6/998 1%
Squamous Cell Lung Carcinoma
0/57 0%
5/810 1%
Prostate Carcinoma
1/13 8%
10/2105 0%
Bladder Carcinoma
2/58 3%
3/956 0%
Gastric Carcinoma
4/74 5%
5/1809 0%
Kidney Carcinoma
3/85 4%
6/1862 0%
Head and Neck Carcinoma
1/85 1%
6/1574 0%
Neuroblastoma
2/87 2%
4/1331 0%
Biliary Tract Carcinoma
0/54 0%
4/950 0%
Meningioma
0/3 0%
1/252 0%
Esophageal Squamous Cell Carcinoma
2/51 4%
7/2550 0%
Hepatocellular Carcinoma
0/46 0%
8/2210 0%
Other Solid Cancers
2/94 2%
3/1515 0%
Neuroendocrine Tumour
1/154 1%
1/577 0%
Other Sarcomas
0/69 0%
2/699 0%
Small Cell Lung Carcinoma
0/9 0%
2/752 0%

Mutation Distribution

Where TAP1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in TAP1 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 312 mutations in TAP1

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