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 | 439 | 91 | 335 |
| Samples | 407 | 84 | 313 |
| Peptides | 324 | 56 | 268 |
Function
DPP4 · Dipeptidyl peptidase 4
The DPP4 gene encodes dipeptidyl peptidase 4, which is identical to adenosine deaminase complexing protein-2, and to the T-cell activation antigen CD26. It is an intrinsic type II transmembrane glycoprotein and a serine exopeptidase that cleaves X-proline dipeptides from the N-terminus of polypeptides. Dipeptidyl peptidase 4 is highly involved in glucose and insulin metabolism, as well as in immune regulation. This protein was shown to be a functional receptor for Middle East respiratory syndrome coronavirus (MERS-CoV), and protein modeling suggests that it may play a similar role with SARS-CoV-2, the virus responsible for COVID-19. [provided by RefSeq, Apr 2020].
Isoforms & Proteins
2 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.
| Transcript | UniProt | Mutations | Peptides |
|---|---|---|---|
| ENST00000360534 | P27487 | 437 | 323 |
| ENST00000678668 | A0A7I2V5R8* | 2 | 2 |
Gene Properties
Recurrent Mutations
All 323 amino-acid changes on canonical ENST00000360534 · 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 DPP4 · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in DPP4 – 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 |
|---|---|---|
| Chronic Myelogenous Leukemia | 2/25 8% | 0/0 0% |
| T-Lymphoblastic Leukemia | 3/40 8% | 0/0 0% |
| Endometrial Carcinoma | 5/42 12% | 28/612 5% |
| Glioblastoma | 4/98 4% | 0/0 0% |
| Melanoma | 9/210 4% | 57/1899 3% |
| Squamous Cell Lung Carcinoma | 1/57 2% | 22/810 3% |
| Neuroendocrine Tumour | 8/154 5% | 2/577 0% |
| Burkitts Lymphoma | 3/32 9% | 0/196 0% |
| Non-Small Cell Lung Carcinoma | 4/304 1% | 17/1390 1% |
| Acute Myeloid Leukemia | 1/90 1% | 0/0 0% |
| Colorectal Carcinoma | 6/143 4% | 30/3239 1% |
| Other Sarcomas | 4/69 6% | 4/699 1% |
| Head and Neck Carcinoma | 2/85 2% | 15/1574 1% |
| Gastric Carcinoma | 1/74 1% | 18/1809 1% |
| Ovarian Carcinoma | 2/109 2% | 9/998 1% |
| Osteosarcoma | 2/45 4% | 0/166 0% |
| Hepatocellular Carcinoma | 4/46 9% | 17/2210 1% |
| Bladder Carcinoma | 0/58 0% | 9/956 1% |
| Mesothelioma | 1/62 2% | 1/165 1% |
| Cervical Carcinoma | 0/35 0% | 4/422 1% |
| Plasma Cell Myeloma | 1/44 2% | 2/305 1% |
| Esophageal Squamous Cell Carcinoma | 6/51 12% | 14/2550 1% |
| Biliary Tract Carcinoma | 1/54 2% | 6/950 1% |
| Other Solid Cancers | 0/94 0% | 11/1515 1% |
| Breast Carcinoma | 2/144 1% | 17/3264 1% |
| Small Cell Lung Carcinoma | 0/9 0% | 4/752 1% |
| Germ Cell Tumour | 0/25 0% | 1/169 1% |
| Glioma | 0/52 0% | 11/2127 1% |
| Thyroid Gland Carcinoma | 1/45 2% | 7/1592 0% |
| Kidney Carcinoma | 3/85 4% | 4/1862 0% |
Mutation Distribution
Where DPP4 is mutated · all tissues, split by cell line vs tissue
How many mutations in DPP4 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 439 mutations in DPP4
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 |
|---|