ClinVar Miner

Submissions for variant NM_001354604.2(MITF):c.1507G>A (p.Val503Met)

gnomAD frequency: 0.00001  dbSNP: rs199578956
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV001560236 SCV001782601 uncertain significance not provided 2023-01-31 criteria provided, single submitter clinical testing In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge
Labcorp Genetics (formerly Invitae), Labcorp RCV003771715 SCV004583740 uncertain significance Tietz syndrome; Waardenburg syndrome type 2A; Melanoma, cutaneous malignant, susceptibility to, 8 2023-11-27 criteria provided, single submitter clinical testing This sequence change replaces valine, which is neutral and non-polar, with methionine, which is neutral and non-polar, at codon 396 of the MITF protein (p.Val396Met). This variant is present in population databases (rs199578956, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with MITF-related conditions. ClinVar contains an entry for this variant (Variation ID: 1196677). 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) performed at Invitae indicates that this missense variant is not expected to disrupt MITF 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.

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