3-183499650-C-T

Position:

• chr3-183499650-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_130446.4(KLHL6):​c.1087G>A​(p.Glu363Lys) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: KLHL6 NM_130446.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.94

Genes affected

KLHL6 (HGNC:18653): (kelch like family member 6) This gene encodes a member of the kelch-like (KLHL) family of proteins, which is involved in B-lymphocyte antigen receptor signaling and germinal-center B-cell maturation. The encoded protein contains an N-terminal broad-complex, tramtrack and bric a brac (BTB) domain that facilitates protein binding and dimerization, a BTB and C-terminal kelch (BACK) domain, and six C-terminal kelch repeat domains. Naturally occurring mutations in this gene are associated with chronic lymphocytic leukemia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2017]

KLHL6 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.27414995).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KLHL6	NM_130446.4	c.1087G>A	p.Glu363Lys	missense_variant	4/7	ENST00000341319.8	NP_569713.2
KLHL6	XM_011513273.4	c.706G>A	p.Glu236Lys	missense_variant	3/6		XP_011511575.1
KLHL6	XM_011513274.4	c.910-5369G>A		intron_variant			XP_011511576.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KLHL6	ENST00000341319.8	c.1087G>A	p.Glu363Lys	missense_variant	4/7	1	NM_130446.4	ENSP00000341342.3
KLHL6	ENST00000468734.1	n.1054G>A		non_coding_transcript_exon_variant	4/8	1		ENSP00000433734.1
KLHL6	ENST00000489245.5	n.922-5369G>A		intron_variant		1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 23, 2023

The c.1087G>A (p.E363K) alteration is located in exon 4 (coding exon 4) of the KLHL6 gene. This alteration results from a G to A substitution at nucleotide position 1087, causing the glutamic acid (E) at amino acid position 363 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.32
BayesDel_addAF	Uncertain	0.051	T
BayesDel_noAF	Benign	-0.16
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.044	T
Eigen	Uncertain	0.20
Eigen_PC	Uncertain	0.32
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Uncertain	0.94	D
M_CAP	Benign	0.029	D
MetaRNN	Benign	0.27	T
MetaSVM	Benign	-0.57	T
MutationAssessor	Benign	1.8	L
PrimateAI	Uncertain	0.64	T
PROVEAN	Benign	-0.62	N
REVEL	Benign	0.20
Sift	Benign	0.042	D
Sift4G	Benign	0.29	T
Polyphen		0.51	P
Vest4		0.46
MutPred		0.38		Gain of ubiquitination at E363 (P = 0.0276);
MVP		0.77
MPC		0.36
ClinPred		0.84	D
GERP RS		4.9
Varity_R		0.081
gMVP		0.57

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.16		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr3-183217438;