KLHL14

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.

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

Relevance tier by entity

Entity	Tier	Description
	1	high-confidence DLBCL gene^1–3

Mutation incidence in large patient cohorts (GAMBL reanalysis)

Entity	source	frequency (%)
DLBCL	GAMBL genomes	4.59
DLBCL	Schmitz cohort	6.60
DLBCL	Reddy cohort	4.60
DLBCL	Chapuy cohort	7.26

Mutation pattern and selective pressure estimates

Entity	aSHM	Significant selection	dN/dS (missense)	dN/dS (nonsense)
BL	No	No	0.000	0.000
DLBCL	No	No	3.154	2.846
FL	No	No	12.248	24.944

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

View coding variants in ProteinPaint hg19 or hg38

View all variants in GenomePaint hg19 or hg38

References

KLHL14 Expression

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

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

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