Total submissions: 2
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Invitae | RCV000647786 | SCV000769589 | uncertain significance | Neuropathy, hereditary sensory and autonomic, type 2A; Generalized epilepsy with febrile seizures plus, type 7 | 2023-10-10 | criteria provided, single submitter | clinical testing | This sequence change replaces asparagine, which is neutral and polar, with serine, which is neutral and polar, at codon 641 of the SCN9A protein (p.Asn641Ser). This variant is present in population databases (rs375858685, gnomAD 0.007%). This variant has not been reported in the literature in individuals affected with SCN9A-related conditions. ClinVar contains an entry for this variant (Variation ID: 538467). 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 SCN9A protein function. This variant disrupts the p.Asn641 amino acid residue in SCN9A. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 19763161, 31372899). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. 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. |
Ambry Genetics | RCV003162954 | SCV003870123 | uncertain significance | Inborn genetic diseases | 2023-02-20 | criteria provided, single submitter | clinical testing | The c.1922A>G (p.N641S) alteration is located in exon 12 (coding exon 11) of the SCN9A gene. This alteration results from a A to G substitution at nucleotide position 1922, causing the asparagine (N) at amino acid position 641 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. |