ClinVar Miner

Submissions for variant NM_020822.3(KCNT1):c.3197T>C (p.Val1066Ala)

gnomAD frequency: 0.00001  dbSNP: rs1554780631
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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000521097 SCV000617966 uncertain significance not provided 2023-06-27 criteria provided, single submitter clinical testing Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge
Invitae RCV001857957 SCV002301093 uncertain significance Developmental and epileptic encephalopathy, 14; Autosomal dominant nocturnal frontal lobe epilepsy 5 2022-04-24 criteria provided, single submitter clinical testing This variant is not present in population databases (gnomAD no frequency). This sequence change replaces valine, which is neutral and non-polar, with alanine, which is neutral and non-polar, at codon 1066 of the KCNT1 protein (p.Val1066Ala). This variant has not been reported in the literature in individuals affected with KCNT1-related conditions. ClinVar contains an entry for this variant (Variation ID: 449643). 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) performed at Invitae indicates that this missense variant is not expected to disrupt KCNT1 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.
Genome-Nilou Lab RCV002270619 SCV002554818 uncertain significance Developmental and epileptic encephalopathy, 14 2022-03-15 criteria provided, single submitter clinical testing
Genome-Nilou Lab RCV002270620 SCV002554819 uncertain significance Autosomal dominant nocturnal frontal lobe epilepsy 5 2022-03-15 criteria provided, single submitter clinical testing

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