ClinVar Miner

Submissions for variant NM_001037.5(SCN1B):c.644del (p.Gln215fs)

dbSNP: rs1555721533
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000598889 SCV000709787 uncertain significance not provided 2017-11-07 criteria provided, single submitter clinical testing A variant of uncertain significance has been identified in the SCN1B gene. This variant has not beenpublished as pathogenic variant, not has it been reported as a benign variant to our knowledge. The c.644delA variant is not observed in large population cohorts (Lek et al., 2016). The c.644delA variant causes a frameshift starting with codon Glutamine 215, changes this amino acid to an Arginine residue and creates a Stop codon at position 78 of the new reading frame, denoted p.Gln215ArgfsX78. This variant is predicted to cause a protein extension, as the last 4 amino acids are replaced with 77incorrect amino acids. However, other variants in the SCN1B gene that are predicted to cause aprotein extension have not been reported in the Human Gene Mutation Database in association with SCN1B-related disorders (Stenson et al., 2014). Therefore, based on the currently availableinformation, it is unclear whether this variant is a pathogenic variant or a rare benign variant.

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