ClinVar Miner

Submissions for variant NM_000249.4(MLH1):c.359C>T (p.Ala120Val)

dbSNP: rs267607740
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV002305142 SCV002590140 uncertain significance Hereditary nonpolyposis colorectal neoplasms 2023-07-08 criteria provided, single submitter clinical testing ClinVar contains an entry for this variant (Variation ID: 1720333). This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 120 of the MLH1 protein (p.Ala120Val). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with MLH1-related conditions. 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 MLH1 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.
All of Us Research Program, National Institutes of Health RCV004005605 SCV004835274 uncertain significance Lynch syndrome 2023-05-16 criteria provided, single submitter clinical testing This missense variant replaces alanine with valine at codon 120 of the MLH1 protein. Computational prediction is inconclusive regarding the impact of this variant on protein structure and function (internally defined REVEL score threshold 0.5 < inconclusive < 0.7, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with MLH1-related disorders in the literature. This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.

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