ClinVar Miner

Submissions for variant NM_000218.3(KCNQ1):c.1926C>A (p.Cys642Ter)

dbSNP: rs12720454
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Color Diagnostics, LLC DBA Color Health RCV001843216 SCV001350384 uncertain significance Cardiac arrhythmia 2019-10-22 criteria provided, single submitter clinical testing This variant changes 1 nucleotide in exon 16 of the KCNQ1 gene, creating a premature translation stop signal in the last coding exon. This variant is expected to escape nonsense-mediated decay and expressed as a truncated protein product missing the last 35 amino acids of the KCNQ1 protein. The truncated region is not part of any known functional domains of the KCNQ1 protein. To our knowledge, functional studies have not been performed for this variant. This variant has not been reported in individuals affected with cardiovascular disorders in the literature. This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.

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