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 | 576 | 91 | 476 |
| Samples | 303 | 61 | 237 |
| Peptides | 215 | 42 | 178 |
Function
OPN4 · Opsin 4
Opsins are members of the guanine nucleotide-binding protein (G protein)-coupled receptor superfamily. This gene encodes a photoreceptive opsin protein that is expressed within the ganglion and amacrine cell layers of the retina. In mouse, retinal ganglion cell axons expressing this gene projected to the suprachiasmatic nucleus and other brain nuclei involved in circadian photoentrainment. In mouse, this protein is coupled to a transient receptor potential (TRP) ion channel through a G protein signaling pathway and produces a physiologic light response via membrane depolarization and increased intracellular calcium. The protein functions as a sensory photopigment and may also have photoisomerase activity. Experiments with knockout mice indicate that this gene attenuates, but does not abolish, photoentrainment. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 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 201 amino-acid changes on canonical ENST00000241891 · 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 OPN4 · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in OPN4 – 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 |
|---|---|---|
| Chronic Myelogenous Leukemia | 1/25 4% | 0/0 0% |
| Gastrointestinal Stromal Tumour | 0/0 0% | 4/133 3% |
| Non-Small Cell Lung Carcinoma | 20/304 7% | 21/1390 2% |
| Melanoma | 3/210 1% | 43/1899 2% |
| Endometrial Carcinoma | 0/42 0% | 14/612 2% |
| Rhabdomyosarcoma | 0/33 0% | 3/171 2% |
| Colorectal Carcinoma | 6/143 4% | 32/3239 1% |
| Thyroid Gland Carcinoma | 1/45 2% | 16/1592 1% |
| Glioblastoma | 1/98 1% | 0/0 0% |
| Other Solid Cancers | 2/94 2% | 13/1515 1% |
| Small Cell Lung Carcinoma | 0/9 0% | 6/752 1% |
| Gastric Carcinoma | 2/74 3% | 11/1809 1% |
| Squamous Cell Lung Carcinoma | 0/57 0% | 6/810 1% |
| Ewings Sarcoma | 2/63 3% | 0/262 0% |
| Bladder Carcinoma | 1/58 2% | 5/956 1% |
| Plasma Cell Myeloma | 1/44 2% | 1/305 0% |
| Hepatocellular Carcinoma | 0/46 0% | 11/2210 0% |
| Head and Neck Carcinoma | 1/85 1% | 7/1574 0% |
| Cervical Carcinoma | 0/35 0% | 2/422 0% |
| Neuroendocrine Tumour | 3/154 2% | 0/577 0% |
| Pancreatic Carcinoma | 4/89 4% | 3/1611 0% |
| Esophageal Carcinoma | 2/23 9% | 1/769 0% |
| Ovarian Carcinoma | 2/109 2% | 2/998 0% |
| Glioma | 1/52 2% | 6/2127 0% |
| Kidney Carcinoma | 0/85 0% | 6/1862 0% |
| B-Cell Non-Hodgkins Lymphoma | 1/88 1% | 7/2534 0% |
| Breast Carcinoma | 1/144 1% | 9/3264 0% |
| Other Sarcomas | 0/69 0% | 2/699 0% |
| Non-Cancerous | 0/104 0% | 2/830 0% |
| Neuroblastoma | 3/87 3% | 0/1331 0% |
Mutation Distribution
Where OPN4 is mutated · all tissues, split by cell line vs tissue
How many mutations in OPN4 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 46 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 576 mutations in OPN4
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 |
|---|