BCL6
Overview
BCL6 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. Although common, particularly in DLBCL, the function of many of these mutations remains unclear but some have been shown to affect the regulation of BCL6 expression. The role of BCL6 missense mutations, seen over 9% of patients remains unclear.
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timeline
title Publication timing
2011-07-27 : Morin : DLBCL
2012-12-01 : Love : BL
Relevance tier by entity
| Entity | Tier | Description |
|---|---|---|
| 2 | Although recurrent, the relevance of mutations in BL is tenuous1 | |
| 1-EE2 | high-confidence DLBCL gene3 | |
| 1 | high-confidence FL gene |
Mutation incidence in large patient cohorts (GAMBL reanalysis)
| Entity | source | frequency (%) |
|---|---|---|
| BL | GAMBL genomes+capture | 5.08 |
| BL | Thomas cohort | 3.40 |
| BL | Panea cohort | 7.90 |
| DLBCL | GAMBL genomes | 11.66 |
| DLBCL | Schmitz cohort | 10.85 |
| DLBCL | Reddy cohort | 6.41 |
| DLBCL | Chapuy cohort | 5.13 |
| FL | GAMBL genomes | 5.77 |
Mutation pattern and selective pressure estimates
| Entity | aSHM | Significant selection | dN/dS (missense) | dN/dS (nonsense) |
|---|---|---|---|---|
| BL | Yes | No | 7.427 | 0.000 |
| DLBCL | Yes | Yes | 25.672 | 60.803 |
| FL | Yes | Yes | 27.215 | 62.162 |
aSHM regions
| chr_name | hg19_start | hg19_end | region | regulatory_comment |
|---|---|---|---|---|
| chr3 | 187458526 | 187464632 | TSS | NA |
| chr3 | 187615533 | 187625659 | Intergenic-1 | NA |
| chr3 | 187625659 | 187638101 | Intergenic-2 | NA |
| chr3 | 187657518 | 187665996 | Intergenic-3 | NA |
| chr3 | 187675741 | 187690717 | Intergenic-4 | NA |
| chr3 | 187690717 | 187705000 | Intergenic-5 | NA |
BCL6 Hotspots
| Chromosome | Coordinate (hg19) | ref>alt | HGVSp |
|---|---|---|---|
| chr3 | 187443373 | G>A | R585W |
| chr3 | 187443370 | G>A | P586S |
| chr3 | 187443369 | G>A | P586L |
| chr3 | 187443367 | C>T | A587T |
| chr3 | 187443366 | G>T | A587D |
| chr3 | 187443366 | G>C | A587G |
| chr3 | 187443345 | C>T | R594Q |
| chr3 | 187443342 | A>T | I595N |
View coding variants in ProteinPaint hg19 or hg38
View all variants in GenomePaint hg19 or hg38
BCL6 Expression
Representative Mutations
BL
Rating ★ ★ ★ ★ ☆
All Mutations
BL
References
1.
Love
C, Sun Z, Jima D, Li G, Zhang J, Miles R, Richards KL, Dunphy CH, Choi
WWL, Srivastava G, Lugar PL, Rizzieri DA, Lagoo AS, Bernal-Mizrachi L,
Mann KP, Flowers CR, Naresh KN, Evens AM, Chadburn A, Gordon LI, Czader
MB, Gill JI, Hsi ED, Greenough A, Moffitt AB, McKinney M, Banerjee A,
Grubor V, Levy S, Dunson DB, Dave SS. The genetic landscape of mutations
in Burkitt lymphoma. Nat Genet. 2012 Dec;44(12):1321–1325.
PMCID: PMC3674561
2.
Bal
E, Kumar R, Hadigol M, Holmes AB, Hilton LK, Loh JW, Dreval K, Wong JCH,
Vlasevska S, Corinaldesi C, Soni RK, Basso K, Morin RD, Khiabanian H,
Pasqualucci L, Dalla-Favera R. Super-enhancer hypermutation alters
oncogene expression in B cell lymphoma. Nature. 2022
Jul;607(7920):808–815. PMCID: PMC9583699
3.
Morin RD, Mendez-Lago M, Mungall AJ, Goya R,
Mungall KL, Corbett RD, Johnson NA, Severson TM, Chiu R, Field M,
Jackman S, Krzywinski M, Scott DW, Trinh DL, Tamura-Wells J, Li S, Firme
MR, Rogic S, Griffith M, Chan S, Yakovenko O, Meyer IM, Zhao EY, Smailus
D, Moksa M, Chittaranjan S, Rimsza L, Brooks-Wilson A, Spinelli JJ,
Ben-Neriah S, Meissner B, Woolcock B, Boyle M, McDonald H, Tam A, Zhao
Y, Delaney A, Zeng T, Tse K, Butterfield Y, Birol I, Holt R, Schein J,
Horsman DE, Moore R, Jones SJM, Connors JM, Hirst M, Gascoyne RD, Marra
MA. Frequent mutation of histone-modifying genes in
non-Hodgkin lymphoma. Nature. 2011 Jul
27;476(7360):298–303. PMCID: PMC3210554


