ClinVar Miner

Submissions for variant NM_001048174.2(MUTYH):c.77C>A (p.Ala26Asp)

dbSNP: rs1060501338
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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV000475875 SCV000545774 uncertain significance Familial adenomatous polyposis 2 2024-09-03 criteria provided, single submitter clinical testing This sequence change replaces alanine, which is neutral and non-polar, with aspartic acid, which is acidic and polar, at codon 40 of the MUTYH protein (p.Ala40Asp). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with MUTYH-related conditions. ClinVar contains an entry for this variant (Variation ID: 406852). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. 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.
Color Diagnostics, LLC DBA Color Health RCV001175826 SCV001339572 uncertain significance Hereditary cancer-predisposing syndrome 2023-12-05 criteria provided, single submitter clinical testing This missense variant replaces alanine with aspartic acid at codon 40 of the MUTYH protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with MUTYH-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.
Ambry Genetics RCV001175826 SCV003867787 uncertain significance Hereditary cancer-predisposing syndrome 2022-11-15 criteria provided, single submitter clinical testing The p.A40D variant (also known as c.119C>A), located in coding exon 2 of the MUTYH gene, results from a C to A substitution at nucleotide position 119. The alanine at codon 40 is replaced by aspartic acid, an amino acid with dissimilar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.
Baylor Genetics RCV000475875 SCV004198897 uncertain significance Familial adenomatous polyposis 2 2023-08-13 criteria provided, single submitter clinical testing

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