ClinVar Miner

Submissions for variant NM_005591.4(MRE11):c.1642A>G (p.Ile548Val)

gnomAD frequency: 0.00001  dbSNP: rs876659165
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Ambry Genetics RCV000218768 SCV000275294 uncertain significance Hereditary cancer-predisposing syndrome 2015-04-20 criteria provided, single submitter clinical testing The p.I548V variant (also known as c.1642A>G), located in coding exon 14 of the MRE11A gene, results from an A to G substitution at nucleotide position 1642. The isoleucine at codon 548 is replaced by valine, an amino acid with highly similar properties. This variant was not reported in population based cohorts in the following databases: Database of Single Nucleotide Polymorphisms (dbSNP), NHLBI Exome Sequencing Project (ESP), and 1000 Genomes Project. In the ESP, this variant was not observed in 6499 samples (12998 alleles) with coverage at this position. To date, this alteration has been detected with an allele frequency of approximately 0.002% (greater than 65000 alleles tested) in our clinical cohort. This amino acid position is not well conserved in available 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 p.I548V remains unclear.
Invitae RCV001366999 SCV001563328 uncertain significance Ataxia-telangiectasia-like disorder 2023-06-24 criteria provided, single submitter clinical testing This variant has not been reported in the literature in individuals affected with MRE11-related conditions. 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 output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The valine 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: 231445). This variant is not present in population databases (gnomAD no frequency). This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 548 of the MRE11 protein (p.Ile548Val).

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