Total submissions: 2
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Ambry Genetics | RCV002448276 | SCV002732385 | uncertain significance | Inborn genetic diseases | 2024-03-18 | criteria provided, single submitter | clinical testing | The p.L78W variant (also known as c.233T>G), located in coding exon 1 of the ACD gene, results from a T to G substitution at nucleotide position 233. The leucine at codon 78 is replaced by tryptophan, an amino acid with 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. |
| Labcorp Genetics |
RCV003754984 | SCV004558295 | uncertain significance | Dyskeratosis congenita, autosomal dominant 6 | 2023-03-18 | criteria provided, single submitter | clinical testing | 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 tryptophan 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: 1789847). This variant has not been reported in the literature in individuals affected with ACD-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces leucine, which is neutral and non-polar, with tryptophan, which is neutral and slightly polar, at codon 78 of the ACD protein (p.Leu78Trp). |