rs193922734

chr17-42787480-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1 PM2

The NM_032387.5(WNK4):c.1679A>G(p.Glu560Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as not provided (no stars).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: WNK4 NM_032387.5 missense
• Clinical Significance: not provided no classification provided O:1
• Conservation: PhyloP100: 7.27

Genes affected

WNK4 (HGNC:14544): (WNK lysine deficient protein kinase 4) This gene encodes a member of the WNK family of serine-threonine protein kinases. The kinase is part of the tight junction complex in kidney cells, and regulates the balance between NaCl reabsorption and K(+) secretion. The kinase regulates the activities of several types of ion channels, cotransporters, and exchangers involved in electrolyte flux in epithelial cells. Mutations in this gene result in pseudohypoaldosteronism type IIB.[provided by RefSeq, Sep 2009]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM1: In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 2 benign, 6 uncertain in NM_032387.5
• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
WNK4	NM_032387.5	c.1679A>G	p.Glu560Gly	missense_variant	7/19	ENST00000246914.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
WNK4	ENST00000246914.10	c.1679A>G	p.Glu560Gly	missense_variant	7/19	1	NM_032387.5	P1
WNK4	ENST00000591448.5	c.*180A>G		3_prime_UTR_variant, NMD_transcript_variant	6/18	1
WNK4	ENST00000587705.5	n.359A>G		non_coding_transcript_exon_variant	2/4	4
WNK4	ENST00000592072.1	n.359A>G		non_coding_transcript_exon_variant	2/6	2

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 1251698 Hom.: 0 Cov.: 37 AF XY: 0.00 AC XY: 0 AN XY: 621176

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

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.: 31

ClinVar

Significance: not provided

Submissions summary: Other:1

Revision: no classification provided

Submissions by phenotype

Pseudohypoaldosteronism type 2B Other:1

not provided, no classification provided

literature only

GeneReviews

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- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.59
BayesDel_addAF	Pathogenic	0.23	D
BayesDel_noAF	Uncertain	0.10
Cadd	Uncertain	24
Dann	Pathogenic	1.0
DEOGEN2	Uncertain	0.69	D
Eigen	Pathogenic	0.70
Eigen_PC	Pathogenic	0.68
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Uncertain	0.96	D
M_CAP	Uncertain	0.14	D
MetaRNN	Uncertain	0.56	D
MetaSVM	Uncertain	0.10	D
MutationAssessor	Uncertain	2.6	M
MutationTaster	Benign	0.99	A
PrimateAI	Uncertain	0.63	T
PROVEAN	Pathogenic	-6.7	D
REVEL	Uncertain	0.60
Sift	Uncertain	0.0010	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.50
MutPred		0.25		Loss of stability (P = 0.0518);
MVP		0.97
MPC		0.20
ClinPred		0.98	D
GERP RS		5.0
Varity_R		0.87
gMVP		0.61

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

LitVar

Other links and lift over

dbSNP: rs193922734; hg19: chr17-40939498;