ClinVar Miner

Submissions for variant NM_001048174.2(MUTYH):c.909G>T (p.Glu303Asp)

dbSNP: rs376830217
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001221939 SCV001394014 uncertain significance Familial adenomatous polyposis 2 2022-01-12 criteria provided, single submitter clinical testing Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The aspartic acid amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. ClinVar contains an entry for this variant (Variation ID: 950261). This variant has not been reported in the literature in individuals affected with MUTYH-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces glutamic acid, which is acidic and polar, with aspartic acid, which is acidic and polar, at codon 331 of the MUTYH protein (p.Glu331Asp). 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.
Ambry Genetics RCV003163709 SCV003867822 uncertain significance Hereditary cancer-predisposing syndrome 2023-02-18 criteria provided, single submitter clinical testing The p.E331D variant (also known as c.993G>T), located in coding exon 11 of the MUTYH gene, results from a G to T substitution at nucleotide position 993. The glutamic acid at codon 331 is replaced by aspartic acid, an amino acid with highly similar properties. This amino acid position is well conserved in available vertebrate species; however, aspartic acid is the reference amino acid in other vertebrate species. 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.

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