Total submissions: 3
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Labcorp Genetics |
RCV000554684 | SCV000637835 | uncertain significance | Hereditary diffuse gastric adenocarcinoma | 2022-09-25 | 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 (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. ClinVar contains an entry for this variant (Variation ID: 463784). This variant has not been reported in the literature in individuals affected with CDH1-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces asparagine, which is neutral and polar, with lysine, which is basic and polar, at codon 166 of the CDH1 protein (p.Asn166Lys). |
Color Diagnostics, |
RCV001191180 | SCV001358893 | uncertain significance | Hereditary cancer-predisposing syndrome | 2019-11-18 | criteria provided, single submitter | clinical testing | This missense variant replaces asparagine with lysine at codon 166 of the CDH1 protein. Computational prediction is inconclusive regarding the impact of this variant on protein structure and function (internally defined REVEL score threshold 0.5 < inconclusive < 0.7, PMID: 27666373). Splice site prediction tools suggest that this variant may not impact RNA splicing. To our knowledge, functional studies have not been performed for this variant. This variant has not been reported in individuals affected with hereditary cancer in the literature. This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. |
Ambry Genetics | RCV001191180 | SCV004057684 | uncertain significance | Hereditary cancer-predisposing syndrome | 2023-06-27 | criteria provided, single submitter | clinical testing | The p.N166K variant (also known as c.498T>G), located in coding exon 4 of the CDH1 gene, results from a T to G substitution at nucleotide position 498. The asparagine at codon 166 is replaced by lysine, an amino acid with similar properties. This amino acid position is conserved. 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. |