BCL11A
Overview
BCL11A (B-cell lymphoma/leukemia 11A) is a transcription factor involved in the regulation of gene expression, particularly in lymphoid cells. Mutations in BCL11A have been linked to various lymphoid malignancies, including B-cell lymphomas. Amplification of the 2p13 region, where BCL11A is located, has been observed in various B-cell non-Hodgkin lymphomas (B-NHL) and Hodgkin disease (HD). Although this suggests that BCL11A amplification contributes to the malignancy through increased expression, the gene is commonly co-amplified with the REL gene1. The functional role of somatic mutations of BCL11A in B-cell lymphomas remains unclear. This is one of a number of genes affected by aberrant somatic hypermutation in B-cell lymphomas, which complicates the interpretation of mutations at this locus.
Relevance tier by entity
| Entity | Tier | Description |
|---|---|---|
| 2 | Role of BCL11A mutations in DLBCL requires confirmation |
Mutation incidence in large patient cohorts (GAMBL reanalysis)
| Entity | source | frequency (%) |
|---|---|---|
| BL | GAMBL genomes+capture | 2.54 |
| BL | Thomas cohort | 1.70 |
| BL | Panea cohort | 5.90 |
| DLBCL | GAMBL genomes | 4.02 |
| DLBCL | Schmitz cohort | 4.47 |
| DLBCL | Reddy cohort | 1.60 |
| DLBCL | Chapuy cohort | 3.42 |
Mutation pattern and selective pressure estimates
| Entity | Missense dN/dS | Nonsense dN/dS | Q value |
|---|---|---|---|
| BL | 2.1999 | 0.0000 | 1.0000 |
| FL | 1.4064 | 5.3234 | 1.0000 |
| DLBCL | 0.0000 | 0.0000 | 0.9986 |
aSHM regions
| chr_name | hg19_start | hg19_end | region | regulatory_comment |
|---|---|---|---|---|
| chr2 | 60773789 | 60783486 | TSS | active_promoter |
BCL11A Hotspots
| Chromosome | Coordinate (hg19) | ref>alt | HGVSp |
|---|---|---|---|
| chr2 | 60780391 | C>G | K5N |
| chr2 | 60780391 | C>A | K5N |
| chr2 | 60780390 | G>A | Q6* |
| chr2 | 60780380 | GG>AA | P9F |
| chr2 | 60780371 | A>T | L12* |
| chr2 | 60780368 | C>T | S13N |
| chr2 | 60780368 | C>G | S13T |
Visualizations
Protein
View coding variants in ProteinPaint hg19 or hg38
Genome
View all variants in GenomePaint hg19 or hg38
Expression


