Total submissions: 2
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Ambry Genetics | RCV001020888 | SCV001182429 | uncertain significance | Hereditary cancer-predisposing syndrome | 2019-07-11 | criteria provided, single submitter | clinical testing | The p.A123V variant (also known as c.368C>T), located in coding exon 1 of the CDKN1B gene, results from a C to T substitution at nucleotide position 368. The alanine at codon 123 is replaced by valine, an amino acid with similar properties. This amino acid position is not well conserved in available vertebrate species. 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 |
RCV005093201 | SCV005806997 | uncertain significance | Multiple endocrine neoplasia type 4 | 2024-12-12 | criteria provided, single submitter | clinical testing | This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 123 of the CDKN1B protein (p.Ala123Val). This variant is present in population databases (no rsID available, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with CDKN1B-related conditions. ClinVar contains an entry for this variant (Variation ID: 824073). 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 tolerated. 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. |