ClinVar Miner

Submissions for variant NM_000719.7(CACNA1C):c.4100T>C (p.Ile1367Thr)

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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV003321399 SCV004025805 uncertain significance not provided 2023-02-09 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 RCV005102897 SCV005781462 pathogenic Long QT syndrome 2024-09-06 criteria provided, single submitter clinical testing This sequence change replaces isoleucine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 1367 of the CACNA1C protein (p.Ile1367Thr). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with CACNA1C-related conditions (internal data). In at least one individual the variant was observed to be de novo. ClinVar contains an entry for this variant (Variation ID: 2575833). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt CACNA1C protein function with a positive predictive value of 95%. For these reasons, this variant has been classified as Pathogenic.

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