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 | 3,037 | 448 | 2,503 |
| Samples | 894 | 202 | 669 |
| Peptides | 937 | 186 | 766 |
Function
ARID1B · AT-rich interaction domain 1B
This locus encodes an AT-rich DNA interacting domain-containing protein. The encoded protein is a component of the SWI/SNF chromatin remodeling complex and may play a role in cell-cycle activation. The protein encoded by this locus is similar to AT-rich interactive domain-containing protein 1A. These two proteins function as alternative, mutually exclusive ARID-subunits of the SWI/SNF complex. The associated complexes play opposing roles. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2016].
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.
| Transcript | UniProt | Mutations | Peptides |
|---|---|---|---|
| ENST00000637904 | A0A1B0GVK1* | 788 | 586 |
| ENST00000637810 | A0A8J9GB59* | 776 | 577 |
| ENST00000635849 | A0A1B0GWJ2* | 758 | 560 |
| ENST00000636930 | Q8NFD5-3 | 302 | 257 |
| ENST00000346085 | Q8NFD5-2 | 228 | 180 |
| ENST00000350026 | Q8NFD5 | 148 | 117 |
| ENST00000637003 | A0A1B0GTE8* | 37 | 33 |
Gene Properties
Recurrent Mutations
All 257 amino-acid changes on canonical ENST00000636930 · 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 ARID1B · cell line vs tissue
For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in ARID1B – 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 | 3/25 12% | 0/0 0% |
| T-Lymphoblastic Leukemia | 3/40 8% | 0/0 0% |
| Glioblastoma | 6/98 6% | 0/0 0% |
| Endometrial Carcinoma | 16/42 38% | 21/612 3% |
| Melanoma | 16/210 8% | 73/1899 4% |
| Other Solid Cancers | 2/94 2% | 65/1515 4% |
| Non-Small Cell Lung Carcinoma | 31/304 10% | 36/1390 3% |
| Colorectal Carcinoma | 24/143 17% | 101/3239 3% |
| Acute Myeloid Leukemia | 3/90 3% | 0/0 0% |
| Small Cell Lung Carcinoma | 0/9 0% | 25/752 3% |
| Gastric Carcinoma | 10/74 14% | 46/1809 3% |
| Hodgkins Lymphoma | 2/16 12% | 2/122 2% |
| Squamous Cell Lung Carcinoma | 2/57 4% | 23/810 3% |
| Thymic Epithelial Tumor | 0/0 0% | 1/39 3% |
| Neuroendocrine Tumour | 11/154 7% | 6/577 1% |
| Bladder Carcinoma | 3/58 5% | 20/956 2% |
| Cervical Carcinoma | 3/35 9% | 7/422 2% |
| Other Sarcomas | 4/69 6% | 11/699 2% |
| Oral Cavity Carcinoma | 1/54 2% | 0/0 0% |
| Burkitts Lymphoma | 3/32 9% | 1/196 1% |
| Head and Neck Carcinoma | 6/85 7% | 19/1574 1% |
| Gastrointestinal Stromal Tumour | 0/0 0% | 2/133 2% |
| Hepatocellular Carcinoma | 4/46 9% | 28/2210 1% |
| Thyroid Gland Carcinoma | 1/45 2% | 22/1592 1% |
| Esophageal Squamous Cell Carcinoma | 3/51 6% | 31/2550 1% |
| Ovarian Carcinoma | 3/109 3% | 11/998 1% |
| Biliary Tract Carcinoma | 1/54 2% | 11/950 1% |
| Breast Carcinoma | 3/144 2% | 37/3264 1% |
| Glioma | 5/52 10% | 18/2127 1% |
| Prostate Carcinoma | 0/13 0% | 21/2105 1% |
Mutation Distribution
Where ARID1B is mutated · all tissues, split by cell line vs tissue
How many mutations in ARID1B 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 3,037 mutations in ARID1B
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 |
|---|