NFKBIZ

Table of Contents

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

Overview

The NFKBIZ gene is a significant player in NF-κB signaling, with mutations leading to its deregulation. This pathway is critical in the pathogenesis of ABC DLBCL. NFKBIZ 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. The predominant cluster of mutations in NFKBIZ is in the 3’ UTR and not a consequence of aSHM. NFKBIZ 3’ UTR mutations confer a selective growth advantage in DLBCL cells by stabilizing NFKBIZ mRNA, resulting in increased protein levels.¹

Experimental Evidence

Driver mutations affecting this gene in DLBCL have been experimentally demonstrated to cause a gain of function (GOF).¹

Relevance tier by entity

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Mutation incidence in large patient cohorts (GAMBL reanalysis)

DLBCL

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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
chr3	101546669	101547704	TSS-1	active_promoter
chr3	101568239	101569274	TSS-2	active_promoter

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Expression

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References

Arthur SE, Jiang A, Grande BM, Alcaide M, Cojocaru R, Rushton CK, Mottok A, Hilton LK, Lat PK, Zhao EY, Culibrk L, Ennishi D, Jessa S, Chong L, Thomas N, Pararajalingam P, Meissner B, Boyle M, Davidson J, Bushell KR, Lai D, Farinha P, Slack GW, Morin GB, Shah S, Sen D, Jones SJM, Mungall AJ, Gascoyne RD, Audas TE, Unrau P, Marra MA, Connors JM, Steidl C, Scott DW, Morin RD. Genome-wide discovery of somatic regulatory variants in diffuse large B-cell lymphoma. Nat Commun. 2018 Oct 1;9(1):4001. PMCID: PMC6167379

Morin RD, Assouline S, Alcaide M, Mohajeri A, Johnston RL, Chong L, Grewal J, Yu S, Fornika D, Bushell K, Nielsen TH, Petrogiannis-Haliotis T, Crump M, Tosikyan A, Grande BM, MacDonald D, Rousseau C, Bayat M, Sesques P, Froment R, Albuquerque M, Monczak Y, Oros KK, Greenwood C, Riazalhosseini Y, Arseneault M, Camlioglu E, Constantin A, Pan-Hammarstrom Q, Peng R, Mann KK, Johnson NA. Genetic Landscapes of Relapsed and Refractory Diffuse Large B-Cell Lymphomas. Clin Cancer Res. 2016 May 1;22(9):2290–2300.