Variant 12-10407723-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_013431.2(KLRC4):c.407A>G(p.Lys136Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000411 in 1,461,586 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/23 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

KLRC4
NM_013431.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.945

Variant links:

Genes affected

KLRC4 (HGNC:6377): (killer cell lectin like receptor C4) Natural killer (NK) cells are lymphocytes that can mediate lysis of certain tumor cells and virus-infected cells without previous activation. They can also regulate specific humoral and cell-mediated immunity. NK cells preferentially express several calcium-dependent (C-type) lectins, which have been implicated in the regulation of NK cell function. This gene is a member of the NKG2 group of genes that are expressed primarily in natural killer (NK) cells. These family members encode transmembrane proteins that are characterized by a type II membrane orientation (have an extracellular C-terminus) and the presence of a C-type lectin domain. This family member is located within the NK complex, a region that contains several C-type lectin genes preferentially expressed in NK cells. Read-through transcription exists between this gene and the downstream KLRK1 (killer cell lectin-like receptor subfamily K, member 1) family member. [provided by RefSeq, Dec 2010]

KLRC4 links:

KLRC4-KLRK1 (HGNC:):

KLRC4-KLRK1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KLRC4	NM_013431.2 linkuse as main transcript	c.407A>G	p.Lys136Arg	missense_variant	4/4	ENST00000309384.3	NP_038459.1
KLRC4-KLRK1	NM_001199805.1 linkuse as main transcript	c.-268A>G		5_prime_UTR_variant	4/13		NP_001186734.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KLRC4	ENST00000309384.3 linkuse as main transcript	c.407A>G	p.Lys136Arg	missense_variant	4/4	1	NM_013431.2	ENSP00000310216	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000239

AC:

AN:

251296

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135810

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000173

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000411

AC:

AN:

1461586

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727082

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000134

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000936

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.0000412

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 16, 2022

The c.407A>G (p.K136R) alteration is located in exon 4 (coding exon 4) of the KLRC4 gene. This alteration results from a A to G substitution at nucleotide position 407, causing the lysine (K) at amino acid position 136 to be replaced by an arginine (R). 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

0.092

BayesDel_addAF

Benign

-0.50

BayesDel_noAF

Benign

-0.69

CADD

Benign

7.5

DANN

Benign

0.79

DEOGEN2

Benign

0.027

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.0063

LIST_S2

Uncertain

0.92

M_CAP

Benign

0.00080

MetaRNN

Benign

0.037

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.6

MutationTaster

Benign

1.0

PrimateAI

Benign

0.23

PROVEAN

Benign

-1.7

REVEL

Benign

0.015

Sift

Benign

0.53

Sift4G

Benign

0.35

Polyphen

0.0070

Vest4

0.099

MutPred

0.38

Gain of catalytic residue at I134 (P = 0.0161);

MVP

0.11

MPC

0.78

ClinPred

0.031

GERP RS

-8.2

Varity_R

0.026

gMVP

0.084

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.71

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.71

Position offset: -1

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over