Total submissions: 3
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Ambry Genetics | RCV000220450 | SCV000278566 | uncertain significance | Hereditary cancer-predisposing syndrome | 2024-01-09 | criteria provided, single submitter | clinical testing | The p.A102V variant (also known as c.305C>T), located in coding exon 2 of the CDKN2A gene, results from a C to T substitution at nucleotide position 305. The alanine at codon 102 is replaced by valine, an amino acid with similar properties. This alteration was identified in an individual diagnosed with melanoma (Potrony M et al. J. Am. Acad. Dermatol., 2014 Nov;71:888-95). This amino acid position is well conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. |
| Labcorp Genetics |
RCV000462689 | SCV000545526 | uncertain significance | Familial melanoma | 2024-12-02 | criteria provided, single submitter | clinical testing | The CDKN2A gene encodes two different proteins, p16INK4a and p14ARF, which are translated from alternative transcripts with different open reading frames. Both transcripts have been analyzed. We report either the variant with the higher classification or default to the CDKN2A (p16INK4a) variant. This report therefore includes the details for the CDKN2A (p16INK4a) variant. This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 102 of the CDKN2A (p16INK4a) protein (p.Ala102Val). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with melanoma (PMID: 26681309). This variant is also known as c.348C>T (Silent) in the CDKN2A (p14ARF) transcript. ClinVar contains an entry for this variant (Variation ID: 234071). 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. |
| Gene |
RCV004591032 | SCV005079387 | uncertain significance | not provided | 2024-01-04 | criteria provided, single submitter | clinical testing | Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 9053859, 16354195, 16234564, 31026031, 26681309, 25064638, 37611275) |