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 | 1,321 | 103 | 1,202 |
| Samples | 827 | 95 | 724 |
| Peptides | 507 | 67 | 448 |
Function
DSPP · Dentin sialophosphoprotein
This gene encodes a member of the small integrin-binding ligand N-linked glycoprotein (SIBLING) family of proteins. The encoded preproprotein is secreted by odontoblasts and proteolytically processed to generate two principal proteins of the dentin extracellular matrix of the tooth, dentin sialoprotein and dentin phosphoprotein. These two protein products may play distinct but related roles in dentin mineralization. Mutations in this gene are associated with dentinogenesis imperfecta and dentin dysplasia. This gene is present in a gene cluster on chromosome 4. Allelic differences due to repeat polymorphisms have been found for this gene. [provided by RefSeq, Jan 2016].
Isoforms & Proteins
1 transcript · 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 |
|---|---|---|---|
| ENST00000651931 | Q9NZW4 | 1,321 | 507 |
Gene Properties
Recurrent Mutations
All 538 amino-acid changes on canonical ENST00000651931 · 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 DSPP · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in DSPP – 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 |
|---|---|---|
| Acute Monocytic Leukemia | 0/1 0% | 3/25 12% |
| Chronic Myelogenous Leukemia | 2/25 8% | 0/0 0% |
| Endometrial Carcinoma | 4/42 10% | 40/612 7% |
| Oral Cavity Carcinoma | 3/54 6% | 0/0 0% |
| Melanoma | 8/210 4% | 103/1899 5% |
| Rhabdomyosarcoma | 0/33 0% | 9/171 5% |
| Small Cell Lung Carcinoma | 2/9 22% | 25/752 3% |
| Other Solid Cancers | 1/94 1% | 53/1515 4% |
| Squamous Cell Lung Carcinoma | 1/57 2% | 27/810 3% |
| Colorectal Carcinoma | 13/143 9% | 87/3239 3% |
| T-Lymphoblastic Leukemia | 1/40 2% | 0/0 0% |
| Thyroid Gland Carcinoma | 3/45 7% | 34/1592 2% |
| Gastrointestinal Stromal Tumour | 0/0 0% | 3/133 2% |
| Non-Small Cell Lung Carcinoma | 9/304 3% | 29/1390 2% |
| Acute Myeloid Leukemia | 2/90 2% | 0/0 0% |
| Hepatocellular Carcinoma | 0/46 0% | 44/2210 2% |
| Gastric Carcinoma | 6/74 8% | 30/1809 2% |
| B-Cell Non-Hodgkins Lymphoma | 2/88 2% | 45/2534 2% |
| Esophageal Carcinoma | 0/23 0% | 14/769 2% |
| Bladder Carcinoma | 1/58 2% | 16/956 2% |
| Neuroendocrine Tumour | 6/154 4% | 6/577 1% |
| Cervical Carcinoma | 2/35 6% | 5/422 1% |
| Hodgkins Lymphoma | 2/16 12% | 0/122 0% |
| Non-Cancerous | 2/104 2% | 11/830 1% |
| Other Sarcomas | 4/69 6% | 6/699 1% |
| Plasma Cell Myeloma | 0/44 0% | 4/305 1% |
| Esophageal Squamous Cell Carcinoma | 0/51 0% | 28/2550 1% |
| Germ Cell Tumour | 0/25 0% | 2/169 1% |
| Glioblastoma | 1/98 1% | 0/0 0% |
| Osteosarcoma | 1/45 2% | 1/166 1% |
Mutation Distribution
Where DSPP is mutated · all tissues, split by cell line vs tissue
How many mutations in DSPP 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 12 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 1,321 mutations in DSPP
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 |
|---|