rs72650720
Variant summary
Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4_StrongBP6
The NM_018979.4(WNK1):c.3578G>A(p.Ser1193Asn) variant causes a missense change. The variant allele was found at a frequency of 0.000409 in 1,614,108 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_018979.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -5 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
WNK1 | ENST00000340908.9 | c.4334G>A | p.Ser1445Asn | missense_variant | Exon 16 of 28 | 5 | NM_213655.5 | ENSP00000341292.5 | ||
WNK1 | ENST00000315939.11 | c.3578G>A | p.Ser1193Asn | missense_variant | Exon 16 of 28 | 1 | NM_018979.4 | ENSP00000313059.6 |
Frequencies
GnomAD3 genomes AF: 0.000440 AC: 67AN: 152196Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.000581 AC: 146AN: 251428Hom.: 1 AF XY: 0.000640 AC XY: 87AN XY: 135884
GnomAD4 exome AF: 0.000406 AC: 593AN: 1461794Hom.: 1 Cov.: 34 AF XY: 0.000430 AC XY: 313AN XY: 727208
GnomAD4 genome AF: 0.000440 AC: 67AN: 152314Hom.: 0 Cov.: 33 AF XY: 0.000443 AC XY: 33AN XY: 74490
ClinVar
Submissions by phenotype
not provided Uncertain:2
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not specified Uncertain:1
The WNK1 c.3578G>A; p.Ser1193Asn variant (rs72650720, ClinVar variant ID 194667), to our knowledge, is not reported in the medical literature or gene specific variation databases. This variant is listed in the genome Aggregation Database (gnomAD) with an overall population frequency of 0.05% (identified on 155 out of 282,826 chromosomes, including one homozygote). The serine at position 1193 is highly conserved, considering 18 species, and computational analyses of the effects of the p.Ser1193Asn variant on protein structure and function make conflicting predictions (SIFT: damaging, PolyPhen-2: benign). Based on the available information, the clinical significance of the p.Ser1193Asn variant cannot be determined with certainty. -
Inborn genetic diseases Uncertain:1
The p.S1445N variant (also known as c.4334G>A), located in coding exon 16 of the WNK1 gene, results from a G to A substitution at nucleotide position 4334. The serine at codon 1445 is replaced by asparagine, an amino acid with highly similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Pseudohypoaldosteronism type 2C Benign:1
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
WNK1-related disorder Benign:1
This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Pseudohypoaldosteronism type 2C;C2752089:Neuropathy, hereditary sensory and autonomic, type 2A Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at