[ARID1A]
ARID1A (AT-rich interactive domain-containing protein 1A) is a gene that encodes a subunit of the SWI/SNF chromatin remodeling complex, which is involved in regulating DNA accessibility. Mutations in ARID1A are implicated in various cancers, including B-cell lymphomas. They are the most abundant in Burkitt lymphoma but also occur in FL and, to a lesser extent, DLBCL.
Mutation tier
| Entity | Tier | Description |
|---|---|---|
| BL | 1 | high-confidence BL gene |
| DLBCL | 1 | high-confidence DLBCL gene |
| FL | 1 | high-confidence FL gene |
Mutation incidence
| Entity | source | frequency (%) |
|---|---|---|
| BL | GAMBL genomes+capture | 28.64 |
| BL | Thomas cohort | 36.00 |
| BL | Panea cohort | 19.80 |
| DLBCL | GAMBL genomes | 8.80 |
| DLBCL | Schmitz cohort | 8.90 |
| DLBCL | Reddy cohort | 4.40 |
| DLBCL | Chapuy cohort | 4.30 |
| FL | GAMBL genomes | 12.47 |
Mutation pattern
| Entity | aSHM | Significant selection | dN/dS (missense) | dN/dS (nonsense) |
|---|---|---|---|---|
| BL | No | Yes | 3.218 | 130.201 |
| DLBCL | No | Yes | 2.364 | 38.689 |
| FL | No | Yes | 3.794 | 248.722 |
[!NOTE] First described in BL in 2012 by Love C. First described in DLBCL in 2013 by Zhang J
## ARID1A Hotspots
| Chromosome | Coordinate (hg19) | ref>alt | HGVSp |
|---|---|---|---|
| chr1 | 27023114 | C>T | Q74* |
| chr1 | 27023420 | C>T | Q176* |
| chr1 | 27023423 | C>T | Q177* |
| chr1 | 27023429 | C>T | P179S |
| chr1 | 27023447 | C>T | Q185* |
| chr1 | 27100207 | C>T | R1335* |
| chr1 | 27100315 | T>C | F1343L |
| chr1 | 27106354 | C>T | R1989* |
| chr1 | 27106363 | T>C | S1992P |
View coding variants in ProteinPaint hg19 or hg38
View all variants in GenomePaint hg19 or hg38
Citing
If you use the information or data from this site, please cite
Krysta Coyle, Kostiantyn Dreval, Daniel Hodson and Ryan D. Morin. Audit of B-cell cancer genes. Blood Adv (2025) 9 (8): 2019–2031.
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