ClinVar Miner

Submissions for variant NM_001127222.2(CACNA1A):c.5165A>G (p.Asp1722Gly)

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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV002283306 SCV002571648 uncertain significance not provided 2023-04-07 criteria provided, single submitter clinical testing Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge
CeGaT Center for Human Genetics Tuebingen RCV002283306 SCV004033646 uncertain significance not provided 2023-07-01 criteria provided, single submitter clinical testing CACNA1A: PP2
Athena Diagnostics RCV002283306 SCV004229466 uncertain significance not provided 2023-07-25 criteria provided, single submitter clinical testing Available data are insufficient to determine the clinical significance of the variant at this time. The frequency of this variant in the general population is uninformative in assessment of its pathogenicity. (http://gnomad.broadinstitute.org) Computational tools predict that this variant is not damaging.
Labcorp Genetics (formerly Invitae), Labcorp RCV003774930 SCV004584050 uncertain significance Episodic ataxia type 2; Developmental and epileptic encephalopathy, 42 2023-08-27 criteria provided, single submitter clinical testing This sequence change replaces aspartic acid, which is acidic and polar, with glycine, which is neutral and non-polar, at codon 1723 of the CACNA1A protein (p.Asp1723Gly). This variant is present in population databases (rs765144501, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with CACNA1A-related conditions. ClinVar contains an entry for this variant (Variation ID: 1704979). 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 CACNA1A 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.

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