ClinVar Miner

Submissions for variant NM_022168.4(IFIH1):c.1672A>G (p.Met558Val)

gnomAD frequency: 0.00001  dbSNP: rs756286361
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001977639 SCV002262900 uncertain significance Singleton-Merten syndrome 1; Aicardi-Goutieres syndrome 7 2023-10-13 criteria provided, single submitter clinical testing This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 558 of the IFIH1 protein (p.Met558Val). This variant is present in population databases (rs756286361, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with IFIH1-related conditions. ClinVar contains an entry for this variant (Variation ID: 1475888). 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 IFIH1 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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