Total submissions: 2
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Ambry Genetics | RCV001023288 | SCV001185141 | uncertain significance | Hereditary cancer-predisposing syndrome | 2019-11-06 | criteria provided, single submitter | clinical testing | The p.M1644I variant (also known as c.4932G>A), located in coding exon 32 of the ATM gene, results from a G to A substitution at nucleotide position 4932. The methionine at codon 1644 is replaced by isoleucine, an amino acid with highly similar properties. 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 this alteration remains unclear. |
| Invitae | RCV002550884 | SCV003487350 | uncertain significance | Ataxia-telangiectasia syndrome | 2023-10-17 | criteria provided, single submitter | clinical testing | This sequence change replaces methionine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 1644 of the ATM protein (p.Met1644Ile). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with ATM-related conditions. ClinVar contains an entry for this variant (Variation ID: 825305). 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. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. 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. |