ClinVar Miner

Submissions for variant NM_015295.3(SMCHD1):c.4108C>T (p.Arg1370Cys)

gnomAD frequency: 0.00006  dbSNP: rs942559171
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Athena Diagnostics RCV000517186 SCV000615345 likely benign not specified 2017-04-21 criteria provided, single submitter clinical testing
Labcorp Genetics (formerly Invitae), Labcorp RCV000639706 SCV000761287 uncertain significance Facioscapulohumeral muscular dystrophy 2 2024-11-22 criteria provided, single submitter clinical testing This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 1370 of the SMCHD1 protein (p.Arg1370Cys). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with SMCHD1-related conditions. ClinVar contains an entry for this variant (Variation ID: 448425). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt SMCHD1 protein function with a negative predictive value of 80%. 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.
Revvity Omics, Revvity RCV003139714 SCV003824004 uncertain significance not provided 2020-07-22 criteria provided, single submitter clinical testing

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