Stats by Source
Total, split by cell line (COSMIC CL / DepMap / PubMed) vs tissue (COSMIC primary tissue)
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.
| Total | Cell line | Tissue | |
|---|---|---|---|
| Mutations | 770 | 120 | 649 |
| Samples | 230 | 61 | 168 |
| Peptides | 189 | 32 | 159 |
Function
TAPBP · TAP binding protein
This gene encodes a transmembrane glycoprotein which mediates interaction between newly assembled major histocompatibility complex (MHC) class I molecules and the transporter associated with antigen processing (TAP), which is required for the transport of antigenic peptides across the endoplasmic reticulum membrane. This interaction is essential for optimal peptide loading on the MHC class I molecule. Up to four complexes of MHC class I and this protein may be bound to a single TAP molecule. This protein contains a C-terminal double-lysine motif (KKKAE) known to maintain membrane proteins in the endoplasmic reticulum. This gene lies within the major histocompatibility complex on chromosome 6. Alternative splicing results in three transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008].
Isoforms & Proteins
4 transcripts · UniProt mapping is sequence-verified (AA-safe)
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.
Gene Properties
Recurrent Mutations
All 157 amino-acid changes on canonical ENST00000434618 · needle height = samples · drag the mini-map to zoom
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 TAPBP · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in TAPBP – 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 type | Cell lines | Tissue samples |
|---|---|---|
| T-Lymphoblastic Leukemia | 5/40 12% | 0/0 0% |
| T-Cell Non-Hodgkins Lymphoma | 2/26 8% | 0/0 0% |
| Hodgkins Lymphoma | 2/16 12% | 1/122 1% |
| Oral Cavity Carcinoma | 1/54 2% | 0/0 0% |
| Endometrial Carcinoma | 1/42 2% | 10/612 2% |
| Cervical Carcinoma | 0/35 0% | 6/422 1% |
| Acute Myeloid Leukemia | 1/90 1% | 0/0 0% |
| Melanoma | 6/210 3% | 17/1899 1% |
| Thyroid Gland Carcinoma | 1/45 2% | 15/1592 1% |
| Ovarian Carcinoma | 3/109 3% | 7/998 1% |
| Gastric Carcinoma | 1/74 1% | 15/1809 1% |
| Non-Small Cell Lung Carcinoma | 5/304 2% | 9/1390 1% |
| Colorectal Carcinoma | 4/143 3% | 22/3239 1% |
| Gastrointestinal Stromal Tumour | 0/0 0% | 1/133 1% |
| Bladder Carcinoma | 2/58 3% | 5/956 1% |
| Head and Neck Carcinoma | 2/85 2% | 9/1574 1% |
| Squamous Cell Lung Carcinoma | 0/57 0% | 5/810 1% |
| Plasma Cell Myeloma | 0/44 0% | 2/305 1% |
| Germ Cell Tumour | 1/25 4% | 0/169 0% |
| Other Sarcomas | 2/69 3% | 2/699 0% |
| Hepatocellular Carcinoma | 3/46 7% | 7/2210 0% |
| Other Solid Cancers | 1/94 1% | 6/1515 0% |
| Mesothelioma | 1/62 2% | 0/165 0% |
| Meningioma | 0/3 0% | 1/252 0% |
| Biliary Tract Carcinoma | 0/54 0% | 3/950 0% |
| Glioma | 1/52 2% | 5/2127 0% |
| Esophageal Squamous Cell Carcinoma | 1/51 2% | 6/2550 0% |
| Pancreatic Carcinoma | 0/89 0% | 4/1611 0% |
| Medulloblastoma | 0/0 0% | 1/450 0% |
| B-Lymphoblastic Leukemia | 5/55 9% | 0/2640 0% |
Mutation Distribution
Where TAPBP is mutated · all tissues, split by cell line vs tissue
How many mutations in TAPBP 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
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 770 mutations in TAPBP
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.
| ID | Sample | Transcript | AA Change | CDS | Type | Source | Mutant Peptide | Wild-type Peptide |
|---|