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 | 3,837 | 311 | 3,479 |
| Samples | 643 | 104 | 528 |
| Peptides | 514 | 83 | 447 |
Function
GABRB3 · Gamma-aminobutyric acid type A receptor subunit beta3
This gene encodes a member of the ligand-gated ionic channel family. The encoded protein is one the subunits of a multi-subunit chloride channel that serves as the receptor for gamma-aminobutyric acid, a major inhibitory neurotransmitter of the mammalian nervous system. This gene is located on the long arm of chromosome 15 in a cluster with two other genes encoding related subunits of the family. This gene may be associated with the pathogenesis of several disorders including Angelman syndrome, Prader-Willi syndrome, nonsyndromic orofacial clefts, epilepsy and autism. Alternatively spliced transcript variants encoding distinct isoforms have been described. [provided by RefSeq, Jul 2013].
Isoforms & Proteins
7 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 412 amino-acid changes on canonical ENST00000311550 · 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 GABRB3 · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in GABRB3 – 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 | 3/40 8% | 0/0 0% |
| Non-Small Cell Lung Carcinoma | 22/304 7% | 49/1390 4% |
| Squamous Cell Lung Carcinoma | 4/57 7% | 31/810 4% |
| Melanoma | 12/210 6% | 72/1899 4% |
| Endometrial Carcinoma | 5/42 12% | 16/612 3% |
| Colorectal Carcinoma | 15/143 10% | 83/3239 3% |
| Cervical Carcinoma | 0/35 0% | 11/422 3% |
| Small Cell Lung Carcinoma | 1/9 11% | 15/752 2% |
| Glioblastoma | 2/98 2% | 0/0 0% |
| Plasma Cell Myeloma | 2/44 5% | 5/305 2% |
| Rhabdomyosarcoma | 2/33 6% | 2/171 1% |
| Other Solid Cancers | 2/94 2% | 29/1515 2% |
| Gastric Carcinoma | 2/74 3% | 33/1809 2% |
| Oral Cavity Carcinoma | 1/54 2% | 0/0 0% |
| Neuroendocrine Tumour | 9/154 6% | 3/577 1% |
| Bladder Carcinoma | 0/58 0% | 16/956 2% |
| Head and Neck Carcinoma | 3/85 4% | 21/1574 1% |
| Esophageal Squamous Cell Carcinoma | 2/51 4% | 33/2550 1% |
| Non-Cancerous | 1/104 1% | 10/830 1% |
| Burkitts Lymphoma | 2/32 6% | 0/196 0% |
| Hepatocellular Carcinoma | 1/46 2% | 18/2210 1% |
| Ovarian Carcinoma | 1/109 1% | 8/998 1% |
| Hodgkins Lymphoma | 0/16 0% | 1/122 1% |
| Pancreatic Carcinoma | 2/89 2% | 10/1611 1% |
| Glioma | 0/52 0% | 14/2127 1% |
| Esophageal Carcinoma | 0/23 0% | 5/769 1% |
| Ewings Sarcoma | 0/63 0% | 2/262 1% |
| Osteosarcoma | 1/45 2% | 0/166 0% |
| B-Cell Non-Hodgkins Lymphoma | 1/88 1% | 11/2534 0% |
| Mesothelioma | 0/62 0% | 1/165 1% |
Mutation Distribution
Where GABRB3 is mutated · all tissues, split by cell line vs tissue
How many mutations in GABRB3 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 3,837 mutations in GABRB3
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 |
|---|