Total submissions: 3
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Invitae | RCV000685026 | SCV000812497 | uncertain significance | Neuropathy, hereditary sensory and autonomic, type 2A; Pseudohypoaldosteronism type 2C | 2024-01-22 | criteria provided, single submitter | clinical testing | This sequence change replaces alanine, which is neutral and non-polar, with glycine, which is neutral and non-polar, at codon 43 of the WNK1 protein (p.Ala43Gly). This variant is present in population databases (rs775564750, gnomAD 0.005%). 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: 565458). 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. |
| Illumina Laboratory Services, |
RCV001111895 | SCV001269502 | likely benign | Pseudohypoaldosteronism type 2C | 2018-01-13 | criteria provided, single submitter | clinical testing | 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 likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. |
| Ambry Genetics | RCV002386157 | SCV002690855 | uncertain significance | Inborn genetic diseases | 2021-01-05 | criteria provided, single submitter | clinical testing | The p.A43G variant (also known as c.128C>G), located in coding exon 1 of the WNK1 gene, results from a C to G substitution at nucleotide position 128. The alanine at codon 43 is replaced by glycine, an amino acid with similar properties. This amino acid position is poorly 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. |