CREBBP
Overview
CREBBP mutations are highly prevalent in both DLBCL and FL.pasqualucciInactivatingMutationsAcetyltransferase2011a? These mutations often affect the histone acetyltransferase (HAT) domain, crucial for regulating gene expression through chromatin modification, or generate a truncated protein.pasqualucciInactivatingMutationsAcetyltransferase2011a? This gene has some recurrent sites of mutations (hotspots), mostly in the HAT domain. The pattern of mutations in DLBCL is distinct from FL with the latter having more HAT domain mutations relative to truncating mutations.1
History
Relevance tier by entity
| Entity | Tier | Description |
|---|---|---|
| 2 | relevance in MZL not firmly established2 | |
| 1 | high-confidence PMBL/cHL/GZL genedunsCharacterizationDLBCLPMBL2021b? | |
| 1 | high-confidence DLBCL genepasqualucciInactivatingMutationsAcetyltransferase2011a? | |
| 1 | high-confidence FL genepasqualucciInactivatingMutationsAcetyltransferase2011a? | |
| 2 | association with BL is tenuous3 |
Mutation incidence in large patient cohorts (GAMBL reanalysis)
| Entity | source | frequency (%) |
|---|---|---|
| DLBCL | GAMBL genomes | 25.81 |
| DLBCL | Schmitz cohort | 17.87 |
| DLBCL | Reddy cohort | 12.11 |
| DLBCL | Chapuy cohort | 16.67 |
| FL | GAMBL genomes | 65.13 |
| BL | GAMBL genomes+capture | 6.00 |
| BL | Thomas cohort | 3.00 |
| BL | Panea cohort | 12.90 |
Mutation pattern and selective pressure estimates
| Entity | aSHM | Significant selection | dN/dS (missense) | dN/dS (nonsense) |
|---|---|---|---|---|
| BL | No | No | 1.357 | 3.999 |
| DLBCL | No | Yes | 13.231 | 65.302 |
| FL | No | Yes | 43.869 | 112.938 |
CREBBP Hotspots
| Chromosome | Coordinate (hg19) | ref>alt | HGVSp |
|---|---|---|---|
| chr16 | 3788618 | G>A | R1446C |
| chr16 | 3788617 | C>T | R1446H |
| chr16 | 3788617 | C>A | R1446L |
| chr16 | 3788606 | A>T | Y1450N |
| chr16 | 3788606 | A>C | Y1450D |
| chr16 | 3788605 | T>G | Y1450S |
| chr16 | 3788605 | T>C | Y1450C |
| chr16 | 3788596 | A>G | I1453T |
| chr16 | 3788594 | G>T | L1454I |
| chr16 | 3788593 | A>C | L1454R |
| chr16 | 3786715 | A>T | L1499Q |
| chr16 | 3786715 | A>G | L1499P |
| chr16 | 3786715 | A>C | L1499R |
| chr16 | 3786710 | C>A | E1501* |
| chr16 | 3786707 | A>T | W1502R |
| chr16 | 3786707 | A>G | W1502R |
| chr16 | 3786705 | C>T | W1502* |
| chr16 | 3786705 | C>G | W1502C |
| chr16 | 3786705 | C>A | W1502C |
| chr16 | 3786704 | A>T | Y1503N |
| chr16 | 3786704 | A>G | Y1503H |
| chr16 | 3786704 | A>C | Y1503D |
| chr16 | 3786703 | T>G | Y1503S |
| chr16 | 3786703 | T>A | Y1503F |
| chr16 | 3786691 | A>G | L1507P |
View coding variants in ProteinPaint hg19 or hg38
View all variants in GenomePaint hg19 or hg38
CREBBP Expression
Representative Mutations
BL3
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