Total submissions: 2
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Labcorp Genetics |
RCV001910427 | SCV002196299 | uncertain significance | not provided | 2022-04-10 | criteria provided, single submitter | clinical testing | This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 458 of the ALDH6A1 protein (p.Arg458Gln). This variant is present in population databases (rs369223978, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with ALDH6A1-related conditions. 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 ALDH6A1 protein function. 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. |
| Victorian Clinical Genetics Services, |
RCV002272529 | SCV002557302 | uncertain significance | Methylmalonate semialdehyde dehydrogenase deficiency | 2020-05-21 | criteria provided, single submitter | clinical testing | Based on the classification scheme VCGS_Germline_v1.1.1, this variant is classified as 3A-VUS. Following criteria are met: 0102 - Loss-of-function is a known mechanism of disease for this gene. (N) 0106 - This gene is known to be associated with autosomal recessive disease. (N) 0200 - Variant is predicted to result in a missense amino acid change from an arginine to a glutamine (exon 10). (N) 0252 - Variant is homozygous. (N) 0304 - Variant is present in gnomAD <0.01 for a recessive condition (2 heterozygotes, 0 homozygotes). (P) 0309 - An alternative amino acid change at the same position has been observed in gnomAD (2 heterozygotes, 0 homozygotes). (N) 0502 - Missense variant with conflicting in-silico predictions and/or uninformative conservation. (N) 0600 - Variant is located in an annotated domain or motif (polypeptide binding site; NCBI). (N) 0705 - No comparable variants have previous evidence for pathogenicity. (N) 0807 - Variant has not previously been reported in a clinical context. (N) 0905 - No segregation evidence has been identified for this variant. (N) 1005 - Clinically accredited laboratory assay specific to gene product shows abnormal protein function (VCGS). (P) 1101 - Very strong and specific phenotype match. (P) 1208 - Inheritance information for this variant is not currently available. (N) Legend: (P) - Pathogenic, (N) - Neutral, (B) - Benign |