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 | 118 | 32 | 85 |
| Samples | 112 | 31 | 80 |
| Peptides | 91 | 22 | 73 |
Function
SELENOI · Selenoprotein I
The multi-pass transmembrane protein encoded by this gene belongs to the CDP-alcohol phosphatidyltransferase class-I family. It catalyzes the transfer of phosphoethanolamine from CDP-ethanolamine to diacylglycerol to produce phosphatidylethanolamine, which is involved in the formation and maintenance of vesicular membranes, regulation of lipid metabolism, and protein folding. This protein is a selenoprotein, containing the rare selenocysteine (Sec) amino acid at its active site. Sec is encoded by the UGA codon, which normally signals translation termination. The 3' UTRs of selenoprotein mRNAs contain a conserved stem-loop structure, designated the Sec insertion sequence (SECIS) element, that is necessary for the recognition of UGA as a Sec codon rather than as a stop signal. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jul 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 |
|---|---|---|---|
| ENST00000260585 | Q9C0D9 | 118 | 91 |
Gene Properties
Recurrent Mutations
All 91 amino-acid changes on canonical ENST00000260585 · 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 SELENOI · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in SELENOI – 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 | 4/40 10% | 0/0 0% |
| Thymic Epithelial Tumor | 0/0 0% | 1/39 3% |
| Acute Myeloid Leukemia | 2/90 2% | 0/0 0% |
| Endometrial Carcinoma | 4/42 10% | 9/612 1% |
| Glioblastoma | 1/98 1% | 0/0 0% |
| Melanoma | 1/210 0% | 17/1899 1% |
| Hodgkins Lymphoma | 1/16 6% | 0/122 0% |
| Squamous Cell Lung Carcinoma | 3/57 5% | 2/810 0% |
| Plasma Cell Myeloma | 2/44 5% | 0/305 0% |
| Bladder Carcinoma | 0/58 0% | 5/956 1% |
| Colorectal Carcinoma | 4/143 3% | 10/3239 0% |
| Ewings Sarcoma | 1/63 2% | 0/262 0% |
| Non-Small Cell Lung Carcinoma | 0/304 0% | 5/1390 0% |
| Gastric Carcinoma | 2/74 3% | 3/1809 0% |
| Biliary Tract Carcinoma | 1/54 2% | 1/950 0% |
| Other Solid Cancers | 0/94 0% | 3/1515 0% |
| Glioma | 0/52 0% | 4/2127 0% |
| Hepatocellular Carcinoma | 0/46 0% | 4/2210 0% |
| Kidney Carcinoma | 0/85 0% | 3/1862 0% |
| B-Cell Non-Hodgkins Lymphoma | 2/88 2% | 2/2534 0% |
| Breast Carcinoma | 0/144 0% | 5/3264 0% |
| Neuroendocrine Tumour | 0/154 0% | 1/577 0% |
| Pancreatic Carcinoma | 1/89 1% | 1/1611 0% |
| Head and Neck Carcinoma | 0/85 0% | 2/1574 0% |
| Non-Cancerous | 0/104 0% | 1/830 0% |
| Prostate Carcinoma | 0/13 0% | 2/2105 0% |
| Neuroblastoma | 1/87 1% | 0/1331 0% |
| Thyroid Gland Carcinoma | 1/45 2% | 0/1592 0% |
Mutation Distribution
Where SELENOI is mutated · all tissues, split by cell line vs tissue
How many mutations in SELENOI 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 118 mutations in SELENOI
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 |
|---|