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 | 336 | 24 | 311 |
| Samples | 71 | 10 | 60 |
| Peptides | 85 | 9 | 76 |
Function
PSME3 · Proteasome activator subunit 3
The 26S proteasome is a multicatalytic proteinase complex with a highly ordered structure composed of 2 complexes, a 20S core and a 19S regulator. The 20S core is composed of 4 rings of 28 non-identical subunits; 2 rings are composed of 7 alpha subunits and 2 rings are composed of 7 beta subunits. The 19S regulator is composed of a base, which contains 6 ATPase subunits and 2 non-ATPase subunits, and a lid, which contains up to 10 non-ATPase subunits. Proteasomes are distributed throughout eukaryotic cells at a high concentration and cleave peptides in an ATP/ubiquitin-dependent process in a non-lysosomal pathway. An essential function of a modified proteasome, the immunoproteasome, is the processing of class I MHC peptides. The immunoproteasome contains an alternate regulator, referred to as the 11S regulator or PA28, that replaces the 19S regulator. Three subunits (alpha, beta and gamma) of the 11S regulator have been identified. This gene encodes the gamma subunit of the 11S regulator. Six gamma subunits combine to form a homohexameric ring. Alternate splicing results in multiple transcript variants. [provided by RefSeq, May 2012].
Isoforms & Proteins
6 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 57 amino-acid changes on canonical ENST00000293362 · 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 PSME3 · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in PSME3 – 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 Myeloid Leukemia | 1/90 1% | 0/0 0% |
| Hodgkins Lymphoma | 0/16 0% | 1/122 1% |
| Endometrial Carcinoma | 0/42 0% | 4/612 1% |
| Other Solid Cancers | 0/94 0% | 9/1515 1% |
| Squamous Cell Lung Carcinoma | 2/57 4% | 2/810 0% |
| Cervical Carcinoma | 0/35 0% | 2/422 0% |
| Gastric Carcinoma | 1/74 1% | 5/1809 0% |
| Hepatocellular Carcinoma | 2/46 4% | 5/2210 0% |
| Colorectal Carcinoma | 1/143 1% | 9/3239 0% |
| Melanoma | 1/210 0% | 4/1899 0% |
| Bladder Carcinoma | 0/58 0% | 2/956 0% |
| Non-Small Cell Lung Carcinoma | 0/304 0% | 3/1390 0% |
| Kidney Carcinoma | 0/85 0% | 3/1862 0% |
| Small Cell Lung Carcinoma | 0/9 0% | 1/752 0% |
| Other Sarcomas | 0/69 0% | 1/699 0% |
| Pancreatic Carcinoma | 1/89 1% | 1/1611 0% |
| Head and Neck Carcinoma | 0/85 0% | 2/1574 0% |
| B-Lymphoblastic Leukemia | 0/55 0% | 2/2640 0% |
| Other Blood Cancers | 1/61 2% | 1/2725 0% |
| Thyroid Gland Carcinoma | 0/45 0% | 1/1592 0% |
| Prostate Carcinoma | 0/13 0% | 1/2105 0% |
| B-Cell Non-Hodgkins Lymphoma | 0/88 0% | 1/2534 0% |
| Breast Carcinoma | 0/144 0% | 1/3264 0% |
Mutation Distribution
Where PSME3 is mutated · all tissues, split by cell line vs tissue
How many mutations in PSME3 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 336 mutations in PSME3
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 |
|---|