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 | 263 | 48 | 210 |
| Samples | 176 | 38 | 134 |
| Peptides | 136 | 26 | 109 |
Function
COQ3 · Coenzyme Q3, methyltransferase
Ubiquinone, also known as coenzyme Q, or Q, is a critical component of the electron transport pathways of both eukaryotes and prokaryotes (Jonassen and Clarke, 2000 [PubMed 10777520]). This lipid consists of a hydrophobic isoprenoid tail and a quinone head group. The tail varies in length depending on the organism, but its purpose is to anchor coenzyme Q to the membrane. The quinone head group is responsible for the activity of coenzyme Q in the respiratory chain. The S. cerevisiae COQ3 gene encodes an O-methyltransferase required for 2 steps in the biosynthetic pathway of coenzyme Q. This enzyme methylates an early coenzyme Q intermediate, 3,4-dihydroxy-5-polyprenylbenzoic acid, as well as the final intermediate in the pathway, converting demethyl-ubiquinone to coenzyme Q. The COQ3 gene product is also capable of methylating the distinct prokaryotic early intermediate 2-hydroxy-6-polyprenyl phenol.[supplied by OMIM, Mar 2008].
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.
Gene Properties
Recurrent Mutations
All 128 amino-acid changes on canonical ENST00000254759 · 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 COQ3 · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in COQ3 – 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 |
|---|---|---|
| Gastrointestinal Stromal Tumour | 0/0 0% | 6/133 5% |
| Endometrial Carcinoma | 3/42 7% | 10/612 2% |
| Non-Small Cell Lung Carcinoma | 6/304 2% | 10/1390 1% |
| Squamous Cell Lung Carcinoma | 2/57 4% | 6/810 1% |
| Melanoma | 4/210 2% | 14/1899 1% |
| Gastric Carcinoma | 0/74 0% | 13/1809 1% |
| Bladder Carcinoma | 0/58 0% | 7/956 1% |
| Small Cell Lung Carcinoma | 0/9 0% | 5/752 1% |
| Cervical Carcinoma | 0/35 0% | 3/422 1% |
| Other Solid Cancers | 6/94 6% | 4/1515 0% |
| Plasma Cell Myeloma | 2/44 5% | 0/305 0% |
| Colorectal Carcinoma | 7/143 5% | 12/3239 0% |
| Rhabdomyosarcoma | 0/33 0% | 1/171 1% |
| Mesothelioma | 1/62 2% | 0/165 0% |
| Thyroid Gland Carcinoma | 0/45 0% | 7/1592 0% |
| Head and Neck Carcinoma | 3/85 4% | 4/1574 0% |
| Neuroendocrine Tumour | 3/154 2% | 0/577 0% |
| Other Sarcomas | 0/69 0% | 3/699 0% |
| Ovarian Carcinoma | 1/109 1% | 3/998 0% |
| Wilms Tumour | 0/5 0% | 1/474 0% |
| Biliary Tract Carcinoma | 0/54 0% | 2/950 0% |
| Breast Carcinoma | 0/144 0% | 5/3264 0% |
| Other Blood Cancers | 0/61 0% | 4/2725 0% |
| Prostate Carcinoma | 0/13 0% | 3/2105 0% |
| Glioma | 0/52 0% | 3/2127 0% |
| Esophageal Carcinoma | 0/23 0% | 1/769 0% |
| Pancreatic Carcinoma | 0/89 0% | 2/1611 0% |
| Non-Cancerous | 0/104 0% | 1/830 0% |
| B-Cell Non-Hodgkins Lymphoma | 0/88 0% | 3/2534 0% |
| Hepatocellular Carcinoma | 0/46 0% | 2/2210 0% |
Mutation Distribution
Where COQ3 is mutated · all tissues, split by cell line vs tissue
How many mutations in COQ3 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 263 mutations in COQ3
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 |
|---|