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 | 135 | 18 | 115 |
| Samples | 102 | 14 | 87 |
| Peptides | 96 | 11 | 83 |
Function
ATP1B3 · ATPase Na+/K+ transporting subunit beta 3
The protein encoded by this gene belongs to the family of Na+/K+ and H+/K+ ATPases beta chain proteins, and to the subfamily of Na+/K+ -ATPases. Na+/K+ -ATPase is an integral membrane protein responsible for establishing and maintaining the electrochemical gradients of Na and K ions across the plasma membrane. These gradients are essential for osmoregulation, for sodium-coupled transport of a variety of organic and inorganic molecules, and for electrical excitability of nerve and muscle. This enzyme is composed of two subunits, a large catalytic subunit (alpha) and a smaller glycoprotein subunit (beta). The beta subunit regulates, through assembly of alpha/beta heterodimers, the number of sodium pumps transported to the plasma membrane. The glycoprotein subunit of Na+/K+ -ATPase is encoded by multiple genes. This gene encodes a beta 3 subunit. This gene encodes a beta 3 subunit. A pseudogene exists for this gene, and it is located on chromosome 2. [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 82 amino-acid changes on canonical ENST00000286371 · 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 ATP1B3 · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in ATP1B3 – 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 |
|---|---|---|
| Oral Cavity Carcinoma | 1/54 2% | 0/0 0% |
| Endometrial Carcinoma | 1/42 2% | 7/612 1% |
| Melanoma | 0/210 0% | 18/1899 1% |
| Squamous Cell Lung Carcinoma | 3/57 5% | 2/810 0% |
| Colorectal Carcinoma | 3/143 2% | 16/3239 0% |
| Bladder Carcinoma | 1/58 2% | 4/956 0% |
| Gastric Carcinoma | 2/74 3% | 7/1809 0% |
| Cervical Carcinoma | 0/35 0% | 2/422 0% |
| Mesothelioma | 1/62 2% | 0/165 0% |
| Wilms Tumour | 0/5 0% | 2/474 0% |
| Head and Neck Carcinoma | 0/85 0% | 5/1574 0% |
| Plasma Cell Myeloma | 0/44 0% | 1/305 0% |
| Ovarian Carcinoma | 0/109 0% | 2/998 0% |
| Small Cell Lung Carcinoma | 0/9 0% | 1/752 0% |
| Non-Small Cell Lung Carcinoma | 0/304 0% | 2/1390 0% |
| Esophageal Squamous Cell Carcinoma | 0/51 0% | 3/2550 0% |
| Thyroid Gland Carcinoma | 0/45 0% | 2/1592 0% |
| Other Solid Cancers | 0/94 0% | 2/1515 0% |
| Biliary Tract Carcinoma | 0/54 0% | 1/950 0% |
| Glioma | 0/52 0% | 2/2127 0% |
| Breast Carcinoma | 2/144 1% | 1/3264 0% |
| Hepatocellular Carcinoma | 0/46 0% | 2/2210 0% |
| Neuroblastoma | 0/87 0% | 1/1331 0% |
| Pancreatic Carcinoma | 0/89 0% | 1/1611 0% |
| Prostate Carcinoma | 0/13 0% | 1/2105 0% |
| B-Lymphoblastic Leukemia | 0/55 0% | 1/2640 0% |
| Other Blood Cancers | 0/61 0% | 1/2725 0% |
| B-Cell Non-Hodgkins Lymphoma | 0/88 0% | 1/2534 0% |
Mutation Distribution
Where ATP1B3 is mutated · all tissues, split by cell line vs tissue
How many mutations in ATP1B3 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 135 mutations in ATP1B3
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 |
|---|