Total submissions: 2
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Labcorp Genetics |
RCV000628112 | SCV000749003 | uncertain significance | Ataxia-telangiectasia syndrome | 2023-02-04 | criteria provided, single submitter | clinical testing | ClinVar contains an entry for this variant (Variation ID: 524372). 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 arginine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. This variant has not been reported in the literature in individuals affected with ATM-related conditions. This sequence change replaces glutamine, which is neutral and polar, with arginine, which is basic and polar, at codon 1503 of the ATM protein (p.Gln1503Arg). This variant is not present in population databases (gnomAD no frequency). |
| Ambry Genetics | RCV001022603 | SCV001184358 | uncertain significance | Hereditary cancer-predisposing syndrome | 2021-10-12 | criteria provided, single submitter | clinical testing | The p.Q1503R variant (also known as c.4508A>G), located in coding exon 29 of the ATM gene, results from an A to G substitution at nucleotide position 4508. The glutamine at codon 1503 is replaced by arginine, 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. |