ClinVar Miner

Submissions for variant NM_020937.4(FANCM):c.427A>G (p.Thr143Ala)

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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV003084732 SCV003479983 uncertain significance Fanconi anemia 2022-10-23 criteria provided, single submitter clinical testing 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. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals affected with FANCM-related conditions. This variant is present in population databases (rs775186162, gnomAD 0.006%). This sequence change replaces threonine, which is neutral and polar, with alanine, which is neutral and non-polar, at codon 143 of the FANCM protein (p.Thr143Ala).
Quest Diagnostics Nichols Institute San Juan Capistrano RCV003477048 SCV004218798 uncertain significance not provided 2023-08-24 criteria provided, single submitter clinical testing In a large-scale breast cancer association study, the variant was observed in an individual with breast cancer (PMID: 33471991 (2021), see also LOVD (http://databases.lovd.nl/shared/genes/FANCM)). The frequency of this variant in the general population, 0.000012 (3/250860 chromosomes (Genome Aggregation Database, http://gnomad.broadinstitute.org)), is uninformative in the assessment of its pathogenicity. Analysis of this variant using bioinformatics tools for the prediction of the effect of amino acid changes on protein structure and function yielded predictions that this variant is damaging. Based on the available information, we are unable to determine the clinical significance of this variant.

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