ClinVar Miner

Submissions for variant NM_001165963.4(SCN1A):c.4570C>T (p.Pro1524Ser)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
LifeCell International Pvt. Ltd RCV001528185 SCV001739367 uncertain significance Severe myoclonic epilepsy in infancy criteria provided, single submitter case-control A heterozygous missense variant (c.4570C>T) in exon 27 of the SCN1A gene that results in the amino acid substitution from Proline to Serine at codon 1524 (p.Pro1524Ser) was identified. There is a moderate physicochemical difference between Proline and Serine. The observed varian t is not present in both the 1000 Genomes and gnomAD databases. The reference base is conserved across the species and in-silico predictions by Polyphen and SIFT are damaging. The Missense Variants Z-Score for this variant is 5.61. Missense Variants Z-Score is produced by the Exome Aggregation Consortium (60,706 adult humans) by computing a signed Z score for the deviation of observed counts from the expected number. Positive Z scores indicate increased constraint (intoler ance to variation) and therefore that the gene had fewer missense variants than expected. (DOI: 10.1038/nature19057). Though the variant in the SCN1A gene could be significant, this is currently being classified as variant of uncertain significance due to lack of segregation analysis and supporting literature evidence. Reclassification of the variant shall be considered on the basis of availability of additional scientific information and segregation analysis.

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