ClinVar Miner

Submissions for variant NM_001161352.2(KCNMA1):c.813G>C (p.Leu271Phe)

dbSNP: rs2097580642
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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 RCV001216510 SCV001388311 uncertain significance Generalized epilepsy-paroxysmal dyskinesia syndrome 2020-04-24 criteria provided, single submitter clinical testing This sequence change replaces leucine with phenylalanine at codon 271 of the KCNMA1 protein (p.Leu271Phe). The leucine residue is highly conserved and there is a small physicochemical difference between leucine and phenylalanine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with KCNMA1-related conditions. 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: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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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