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Ryan Morin edited this page May 20, 2024 · 30 revisions

LTB

Overview

LTB 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
BL 2-a aSHM target; Although recurrent, the relevance of mutations in BL is tenuous
DLBCL 1-a aSHM target and high-confidence DLBCL gene
FL 1-a aSHM target and high-confidence FL gene

Mutation incidence in large patient cohorts (GAMBL reanalysis)

Entity source frequency (%)
BL GAMBL genomes+capture 3.00
BL Thomas cohort 3.00
BL Panea cohort 5.90
DLBCL GAMBL genomes 9.37
DLBCL Schmitz cohort 8.51
DLBCL Reddy cohort NA
DLBCL Chapuy cohort 9.83
FL GAMBL genomes 8.78

Mutation pattern and selective pressure estimates

Entity aSHM Significant selection dN/dS (missense) dN/dS (nonsense)
BL Yes No 4.330 0.000
DLBCL Yes No 2.261 10.402
FL Yes No 5.259 35.735

aSHM regions

chr_name hg19_start hg19_end region regulatory_comment
chr6 31548325 31550717 intron-1 enhancer

View coding variants in ProteinPaint hg19 or hg38

image

View all variants in GenomePaint hg19 or hg38

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