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 | 103 | 31 | 69 |
| Samples | 102 | 31 | 68 |
| Peptides | 80 | 20 | 58 |
Function
GTF3A · General transcription factor IIIA
The product of this gene is a zinc finger protein with nine Cis[2]-His[2] zinc finger domains. It functions as an RNA polymerase III transcription factor to induce transcription of the 5S rRNA genes. The protein binds to a 50 bp internal promoter in the 5S genes called the internal control region (ICR), and nucleates formation of a stable preinitiation complex. This complex recruits the TFIIIC and TFIIIB transcription factors and RNA polymerase III to form the complete transcription complex. The protein is thought to be translated using a non-AUG translation initiation site in mammals based on sequence analysis, protein homology, and the size of the purified protein. [provided by RefSeq, Jul 2008].
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 |
|---|---|---|---|
| ENST00000381140 | Q92664 | 103 | 80 |
Gene Properties
Recurrent Mutations
All 80 amino-acid changes on canonical ENST00000381140 · 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 GTF3A · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in GTF3A – 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 | 2/40 5% | 0/0 0% |
| Chondrosarcoma | 2/14 14% | 0/75 0% |
| Acute Myeloid Leukemia | 1/90 1% | 0/0 0% |
| Adrenocortical Carcinoma | 0/3 0% | 1/112 1% |
| Gastrointestinal Stromal Tumour | 0/0 0% | 1/133 1% |
| Other Solid Cancers | 4/94 4% | 6/1515 0% |
| Endometrial Carcinoma | 1/42 2% | 3/612 0% |
| Colorectal Carcinoma | 3/143 2% | 16/3239 0% |
| Head and Neck Carcinoma | 1/85 1% | 6/1574 0% |
| Non-Small Cell Lung Carcinoma | 0/304 0% | 7/1390 0% |
| Melanoma | 6/210 3% | 2/1899 0% |
| Gastric Carcinoma | 4/74 5% | 3/1809 0% |
| Squamous Cell Lung Carcinoma | 0/57 0% | 3/810 0% |
| Ewings Sarcoma | 1/63 2% | 0/262 0% |
| Cervical Carcinoma | 1/35 3% | 0/422 0% |
| Hepatocellular Carcinoma | 1/46 2% | 4/2210 0% |
| Non-Cancerous | 0/104 0% | 2/830 0% |
| Neuroblastoma | 0/87 0% | 2/1331 0% |
| Other Sarcomas | 0/69 0% | 1/699 0% |
| Small Cell Lung Carcinoma | 0/9 0% | 1/752 0% |
| Esophageal Carcinoma | 0/23 0% | 1/769 0% |
| Bladder Carcinoma | 1/58 2% | 0/956 0% |
| Biliary Tract Carcinoma | 0/54 0% | 1/950 0% |
| Prostate Carcinoma | 0/13 0% | 2/2105 0% |
| Ovarian Carcinoma | 0/109 0% | 1/998 0% |
| B-Cell Non-Hodgkins Lymphoma | 2/88 2% | 0/2534 0% |
| Esophageal Squamous Cell Carcinoma | 0/51 0% | 2/2550 0% |
| Other Blood Cancers | 0/61 0% | 2/2725 0% |
| Thyroid Gland Carcinoma | 1/45 2% | 0/1592 0% |
| Pancreatic Carcinoma | 0/89 0% | 1/1611 0% |
Mutation Distribution
Where GTF3A is mutated · all tissues, split by cell line vs tissue
How many mutations in GTF3A 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 103 mutations in GTF3A
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 |
|---|