ClinVar Miner

Submissions for variant NM_174934.4(SCN4B):c.*7C>T

gnomAD frequency: 0.00004  dbSNP: rs79071006
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Women's Health and Genetics/Laboratory Corporation of America, LabCorp RCV001194051 SCV001363298 benign not specified 2019-10-22 criteria provided, single submitter clinical testing Variant summary: SCN4B c.*7C>T is located in the untranslated mRNA region downstream of the termination codon. The variant allele was found at a frequency of 7.8e-05 in 282524 control chromosomes, predominantly at a frequency of 0.0011 within the East Asian subpopulation in the gnomAD database. The observed variant frequency within East Asian control individuals in the gnomAD database is approximately 110 fold of the estimated maximal expected allele frequency for a pathogenic variant in SCN4B causing Arrhythmia phenotype (1e-05), strongly suggesting that the variant is a benign polymorphism found primarily in populations of East Asian origin. c.*7C>T has been reported in the literature without strong evidence of causality (Yang_2019, Xiong_2019). These reports do not provide unequivocal conclusions about association of the variant with Arrhythmia. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014. Based on the evidence outlined above, the variant was classified as benign.
GeneDx RCV001587215 SCV001814659 likely benign not provided 2023-11-20 criteria provided, single submitter clinical testing See Variant Classification Assertion Criteria.

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