Total submissions: 2
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Ambry Genetics | RCV001014954 | SCV001175730 | uncertain significance | Hereditary cancer-predisposing syndrome | 2018-02-06 | criteria provided, single submitter | clinical testing | The p.Y753C variant (also known as c.2258A>G), located in coding exon 14 of the CDH1 gene, results from an A to G substitution at nucleotide position 2258. The tyrosine at codon 753 is replaced by cysteine, an amino acid with highly dissimilar properties. This amino acid position is highly conserved through mammals but not in all available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. |
| Labcorp Genetics |
RCV003512098 | SCV004254357 | uncertain significance | Hereditary diffuse gastric adenocarcinoma | 2023-12-08 | criteria provided, single submitter | clinical testing | This sequence change replaces tyrosine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 753 of the CDH1 protein (p.Tyr753Cys). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with CDH1-related conditions. ClinVar contains an entry for this variant (Variation ID: 820973). 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 disruptive. 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. |