rs1245390063

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_213655.5(WNK1):c.65C>T(p.Ala22Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,474 control chromosomes in the GnomAD database, with no homozygous occurrence. 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)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

WNK1
NM_213655.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.855

Publications

0 publications found

Variant links:

Genes affected

WNK1 (HGNC:14540): (WNK lysine deficient protein kinase 1) This gene encodes a member of the WNK subfamily of serine/threonine protein kinases. The encoded protein may be a key regulator of blood pressure by controlling the transport of sodium and chloride ions. Mutations in this gene have been associated with pseudohypoaldosteronism type II and hereditary sensory neuropathy type II. Alternatively spliced transcript variants encoding different isoforms have been described but the full-length nature of all of them has yet to be determined.[provided by RefSeq, May 2010]

WNK1 Gene-Disease associations (from GenCC):

neuropathy, hereditary sensory and autonomic, type 2A
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, G2P, Ambry Genetics
pseudohypoaldosteronism type 2C
Inheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
hereditary sensory and autonomic neuropathy type 2
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

WNK1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.24352601).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WNK1	NM_213655.5 link	c.65C>T	p.Ala22Val	missense_variant	Exon 1 of 28	ENST00000340908.9	NP_998820.3	Q9H4A3-5
WNK1	NM_018979.4 link	c.65C>T	p.Ala22Val	missense_variant	Exon 1 of 28	ENST00000315939.11	NP_061852.3	Q9H4A3-1A5D8Z4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
WNK1	ENST00000340908.9 link	c.65C>T	p.Ala22Val	missense_variant	Exon 1 of 28	5	NM_213655.5	ENSP00000341292.5		Q9H4A3-5
WNK1	ENST00000315939.11 link	c.65C>T	p.Ala22Val	missense_variant	Exon 1 of 28	1	NM_018979.4	ENSP00000313059.6		Q9H4A3-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000408

AC:

AN:

245328

AF XY:

0.00000748

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000916

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1460474

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726526

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33474

American (AMR)

AF:

0.00

AC:

AN:

44714

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26124

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.00

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52206

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5748

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111894

Other (OTH)

AF:

0.00

AC:

AN:

60370

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.0296732), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.400

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Pseudohypoaldosteronism type 2C;C2752089:Neuropathy, hereditary sensory and autonomic, type 2A

Uncertain:1

Jun 11, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 22 of the WNK1 protein (p.Ala22Val). This variant is present in population databases (no rsID available, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with WNK1-related conditions. ClinVar contains an entry for this variant (Variation ID: 471208). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt WNK1 protein function with a negative predictive value of 95%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.085

BayesDel_noAF

Benign

-0.36

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.096

T;.;T;.;.;T

Eigen

Benign

-0.069

Eigen_PC

Benign

0.025

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.94

D;D;D;D;D;D

M_CAP

Pathogenic

0.85

MetaRNN

Benign

0.24

T;T;T;T;T;T

MetaSVM

Benign

-0.58

MutationAssessor

Uncertain

2.1

.;M;M;M;M;.

PhyloP100

0.85

PrimateAI

Pathogenic

0.85

PROVEAN

Benign

-2.0

N;N;N;.;N;N

REVEL

Benign

0.11

Sift

Uncertain

0.0020

D;D;D;.;D;D

Sift4G

Benign

0.098

T;.;T;T;T;T

Polyphen

0.25

B;.;B;.;.;B

Vest4

0.16

MutPred

0.12

Loss of glycosylation at P23 (P = 0.0722);Loss of glycosylation at P23 (P = 0.0722);Loss of glycosylation at P23 (P = 0.0722);Loss of glycosylation at P23 (P = 0.0722);Loss of glycosylation at P23 (P = 0.0722);Loss of glycosylation at P23 (P = 0.0722);

MVP

0.43

MPC

0.73

ClinPred

0.37

GERP RS

3.8

Varity_R

0.20

gMVP

0.19

Mutation Taster

=88/12

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over