Total submissions: 2
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Labcorp Genetics |
RCV000811691 | SCV000951970 | uncertain significance | Gastrointestinal stromal tumor | 2022-12-18 | criteria provided, single submitter | clinical testing | ClinVar contains an entry for this variant (Variation ID: 655499). This variant has not been reported in the literature in individuals affected with PDGFRA-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces isoleucine, which is neutral and non-polar, with phenylalanine, which is neutral and non-polar, at codon 476 of the PDGFRA protein (p.Ile476Phe). 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 phenylalanine 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. |
| Ambry Genetics | RCV002390640 | SCV002697409 | uncertain significance | Hereditary cancer-predisposing syndrome | 2022-06-05 | criteria provided, single submitter | clinical testing | The p.I476F variant (also known as c.1426A>T), located in coding exon 9 of the PDGFRA gene, results from an A to T substitution at nucleotide position 1426. The isoleucine at codon 476 is replaced by phenylalanine, an amino acid with highly similar 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. |