ClinVar Miner

Submissions for variant NM_001127222.2(CACNA1A):c.5944C>T (p.Arg1982Trp)

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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV002467272 SCV002762476 uncertain significance not provided 2022-06-07 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
Labcorp Genetics (formerly Invitae), Labcorp RCV003775498 SCV004581313 uncertain significance Episodic ataxia type 2; Developmental and epileptic encephalopathy, 42 2023-07-30 criteria provided, single submitter clinical testing This variant is not present in population databases (gnomAD no frequency). 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: 1803602). 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. This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 1983 of the CACNA1A protein (p.Arg1983Trp).

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