Total submissions: 2
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Labcorp Genetics |
RCV001978721 | SCV002221780 | uncertain significance | Symmetrical dyschromatosis of extremities; Aicardi-Goutieres syndrome 6 | 2023-11-27 | criteria provided, single submitter | clinical testing | This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 76 of the ADAR protein (p.Pro76Leu). This variant is present in population databases (no rsID available, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with ADAR-related conditions. ClinVar contains an entry for this variant (Variation ID: 1439899). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Not Available". The leucine 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 | RCV004043084 | SCV004854643 | uncertain significance | Inborn genetic diseases | 2023-12-14 | criteria provided, single submitter | clinical testing | The c.227C>T (p.P76L) alteration is located in exon 2 (coding exon 2) of the ADAR gene. This alteration results from a C to T substitution at nucleotide position 227, causing the proline (P) at amino acid position 76 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. |