LTB

Table of Contents

Overview
Relevance tier by entity
Mutation incidence in large patient cohorts (GAMBL reanalysis)
Mutation pattern and selective pressure estimates
aSHM regions
Expression
References

Overview

LTB (Lymphotoxin Beta) is a member of the tumor necrosis factor (TNF) superfamily, which plays a role in the development and organization of secondary lymphoid tissues and in the regulation of immune responses. 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. Although the mutation incidence is relatively high in DLBCL, little is known about the role of these mutations in lymphomagenesis. The mutation pattern overall implies a selective pressure to acquire loss-of-function mutations in LTB.

Relevance tier by entity

Entity	Tier	Description
	1	high-confidence PMBL/cHL/GZL gene¹
	1	aSHM target and high-confidence DLBCL gene²
	1	aSHM target and high-confidence FL gene
	2	aSHM target; Although recurrent, the relevance of mutations in BL is tenuous³

Mutation incidence in large patient cohorts (GAMBL reanalysis)

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Mutation pattern and selective pressure estimates

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aSHM regions

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

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Expression

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References

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Panea R, Love C, Shingleton JR, Reddy A, Bailey J, Moormann A, Otieno J, Ong’echa J, Oduor C, Schroêder K, Masalu N, Chao N, Agajanian M, Major M, Fedoriw Y, Richards K, Rymkiewicz G, Miles R, Alobeid B, Bhagat G, Flowers C, Ondrejka S, Hsi E, Choi W, Au-Yeung R, Hartmann W, Lenz G, Meyerson H, Lin YY, Zhuang Y, Luftig M, Waldrop A, Dave T, Thakkar D, Sahay H, Li G, Palus B, Seshadri V, Kim S, Gascoyne R, Levy S, Mukhopadhyay M, Dunson D, Dave S. The whole genome landscape of Burkitt lymphoma subtypes. Blood. 2019;