ClinVar Miner

Submissions for variant NM_001127222.2(CACNA1A):c.6735G>T (p.Trp2245Cys)

dbSNP: rs2054680655
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001302379 SCV001491587 uncertain significance Episodic ataxia type 2; Developmental and epileptic encephalopathy, 42 2020-04-09 criteria provided, single submitter clinical testing 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. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals with CACNA1A-related conditions. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate insufficient coverage at this position in the ExAC database. This sequence change replaces tryptophan with cysteine at codon 2246 of the CACNA1A protein (p.Trp2246Cys). The tryptophan residue is moderately conserved and there is a large physicochemical difference between tryptophan and cysteine.

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