Overview

KLHL14 (Kelch-like family member 14) is a gene that has been identified as playing a role in B-cell lymphomas, particularly diffuse large B-cell lymphoma (DLBCL).1 KLHL14 has been identified as a recurrent target of somatic mutations in ABC DLBCLs. These mutations are a feature of the MCD genetic subgroup of DLBCL. The gene encodes a protein involved in the ubiquitin-proteasome system, and its inactivation leads to increased cell proliferation and survival, suggesting its role as a tumor suppressor.2 KLHL14 loss has been shown to BCR-dependent NF-κB activation and cell survival in DLBCL.2 This gene has some mutation hotspots but the patter of mutation overall is consistent with its role as a tumor suppressor gene.

Experimental Evidence

Driver mutations affecting this gene in DLBCL have been experimentally demonstrated to cause a reduction or loss of function (LOF).3

Relevance tier by entity

Entity Tier Description
DLBCL 1 High-confidence DLBCL gene

Mutation incidence in large patient cohorts (GAMBL reanalysis)

DLBCL

Entity Collection N mutated Incidence 95% CI
DLBCL GAMBL without Reddy 1,089 64 0.0588 [0.0448,0.0727]
DLBCL GAMBL with Reddy 2,088 110 0.0527 [0.0431,0.0623]
DLBCL BC 231 10 0.0433 [0.017,0.0695]
DLBCL Dana-Farber 303 19 0.0627 [0.0354,0.09]
DLBCL NCI 470 31 0.0660 [0.0435,0.0884]
DLBCL Reddy 999 46 0.0460 [0.033,0.059]
DLBCL DLBCL_ICGC 85 4 0.0471 [0.002,0.0921]

Mutation pattern and selective pressure estimates

Entity Missense dN/dS Nonsense dN/dS Q value
BL 0.0000 0.0000 1e+00
FL 3.8885 6.7540 1e+00
DLBCL 0.6016 1.3925 1e-04

Expression

KLHL14 Hotspots

Chromosome Coordinate (hg19) ref>alt HGVSp
chr18 30349909 G>A L216F
chr18 30349905 T>G N217T
chr18 30349902 A>C F218C
chr18 30349882 G>C L225V

Visualizations

Protein

View coding variants in ProteinPaint hg19 or hg38

Genome

View all variants in GenomePaint hg19 or hg38

History

%%{init: { 'logLevel': 'debug', 'theme': 'dark' } }%% timeline title Publication timing 2013-01-01 : Zhang : DLBCL 2017-10-10 : Reddy : DLBCL 2018-04-12 : Schmitz : DLBCL

References

1.
Zhang J, Grubor V, Love CL, Banerjee A, Richards KL, Mieczkowski PA, Dunphy C, Choi W, Au WY, Srivastava G, Lugar PL, Rizzieri DA, Lagoo AS, Bernal-Mizrachi L, Mann KP, Flowers C, Naresh K, Evens A, Gordon LI, Czader M, Gill JI, Hsi ED, Liu Q, Fan A, Walsh K, Jima D, Smith LL, Johnson AJ, Byrd JC, Luftig MA, Ni T, Zhu J, Chadburn A, Levy S, Dunson D, Dave SS. Genetic heterogeneity of diffuse large B-cell lymphoma. Proceedings of the National Academy of Sciences of the United States of America. 2013;110:1398–1403. PMCID: PMC3557051
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
3.
Choi J, Phelan JD, Wright GW, Häupl B, Huang DW, Shaffer AL, Young RM, Wang Z, Zhao H, Yu X, Oellerich T, Staudt LM. Regulation of B cell receptor-dependent NF-κB signaling by the tumor suppressor KLHL14. Proc Natl Acad Sci U S A. 2020 Mar 17;117(11):6092–6102. PMCID: PMC7084139
4.
Reddy A, Zhang J, Davis NS, Moffitt AB, Love CL, Waldrop A, Leppa S, Pasanen A, Meriranta L, Karjalainen-Lindsberg ML, Nørgaard P, Pedersen M, Gang AO, Høgdall E, Heavican TB, Lone W, Iqbal J, Qin Q, Li G, Kim SY, Healy J, Richards KL, Fedoriw Y, Bernal-Mizrachi L, Koff JL, Staton AD, Flowers CR, Paltiel O, Goldschmidt N, Calaminici M, Clear A, Gribben J, Nguyen E, Czader MB, Ondrejka SL, Collie A, Hsi ED, Tse E, Au-Yeung RKH, Kwong YL, Srivastava G, Choi WWL, Evens AM, Pilichowska M, Sengar M, Reddy N, Li S, Chadburn A, Gordon LI, Jaffe ES, Levy S, Rempel R, Tzeng T, Happ LE, Dave T, Rajagopalan D, Datta J, Dunson DB, Dave SS. Genetic and Functional Drivers of Diffuse Large B Cell Lymphoma. Cell. 2017 Oct;171(2):481–494.e15. PMCID: PMC5659841