Total submissions: 3
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Ambry Genetics | RCV002317960 | SCV000849492 | uncertain significance | Inborn genetic diseases | 2017-05-23 | criteria provided, single submitter | clinical testing | The p.Q845R variant (also known as c.2534A>G), located in coding exon 17 of the SPTAN1 gene, results from an A to G substitution at nucleotide position 2534. The glutamine at codon 845 is replaced by arginine, 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. |
Labcorp Genetics |
RCV001323536 | SCV001514455 | uncertain significance | Early infantile epileptic encephalopathy with suppression bursts | 2023-09-10 | criteria provided, single submitter | clinical testing | 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. 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) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on SPTAN1 protein function. ClinVar contains an entry for this variant (Variation ID: 589016). This variant has not been reported in the literature in individuals affected with SPTAN1-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces glutamine, which is neutral and polar, with arginine, which is basic and polar, at codon 845 of the SPTAN1 protein (p.Gln845Arg). |
Genome- |
RCV001809784 | SCV002056747 | uncertain significance | Developmental and epileptic encephalopathy, 5 | 2021-07-15 | criteria provided, single submitter | clinical testing |