ClinVar Miner

Submissions for variant NM_005359.6(SMAD4):c.367T>C (p.Cys123Arg)

dbSNP: rs1568203472
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV002232855 SCV000814859 uncertain significance Juvenile polyposis syndrome 2024-01-17 criteria provided, single submitter clinical testing This sequence change replaces cysteine, which is neutral and slightly polar, with arginine, which is basic and polar, at codon 123 of the SMAD4 protein (p.Cys123Arg). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with SMAD4-related conditions. ClinVar contains an entry for this variant (Variation ID: 567274). 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) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on SMAD4 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.

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