Overview

CXCR5 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. No notable hot spots have been described in this gene in the context of the cancers listed below. The mutation pattern in DLBCL and FL implies the preferential accumulation of inactivating mutations.

Relevance tier by entity

Entity Tier Description
PMBL 2 relevance in PMBL/cHL/GZL not firmly established1
DLBCL 1-a aSHM target and high-confidence DLBCL gene2

Mutation incidence in large patient cohorts (GAMBL reanalysis)

Entity source frequency (%)
DLBCL GAMBL genomes 1.91
DLBCL Schmitz cohort 4.04
DLBCL Reddy cohort 2.10
DLBCL Chapuy cohort 1.71

Mutation pattern and selective pressure estimates

Entity aSHM Significant selection dN/dS (missense) dN/dS (nonsense)
BL Yes No 2.351 0.000
DLBCL Yes No 1.785 0.000
FL Yes No 2.934 76.955

aSHM regions

chr_name hg19_start hg19_end region regulatory_comment
chr11 118754458 118756514 TSS NA

View coding variants in ProteinPaint hg19 or hg38

View all variants in GenomePaint hg19 or hg38

CXCR5 Expression

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References

1.
Mottok A, Hung SS, Chavez EA, Woolcock B, Telenius A, Chong LC, Meissner B, Nakamura H, Rushton C, Viganò E, Sarkozy C, Gascoyne RD, Connors JM, Ben-Neriah S, Mungall A, Marra MA, Siebert R, Scott DW, Savage KJ, Steidl C. Integrative genomic analysis identifies key pathogenic mechanisms in primary mediastinal large B-cell lymphoma. Blood. 2019 Sep 5;134(10):802–813.
2.
Schmitz R, Wright GW, Huang DW, Johnson CA, Phelan JD, Wang JQ, Roulland S, Kasbekar M, Young RM, Shaffer AL, Hodson DJ, Xiao W, Yu X, Yang Y, Zhao H, Xu W, Liu X, Zhou B, Du W, Chan WC, Jaffe ES, Gascoyne RD, Connors JM, Campo E, Lopez-Guillermo A, Rosenwald A, Ott G, Delabie J, Rimsza LM, Tay Kuang Wei K, Zelenetz AD, Leonard JP, Bartlett NL, Tran B, Shetty J, Zhao Y, Soppet DR, Pittaluga S, Wilson WH, Staudt LM. Genetics and Pathogenesis of Diffuse Large B-Cell Lymphoma. N Engl J Med. 2018 Apr 12;378(15):1396–1407. PMCID: PMC6010183