Total submissions: 5
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Illumina Laboratory Services, |
RCV000266339 | SCV000473322 | uncertain significance | Werner syndrome | 2018-01-12 | criteria provided, single submitter | clinical testing | This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. |
| Labcorp Genetics |
RCV000266339 | SCV000541447 | uncertain significance | Werner syndrome | 2024-09-06 | criteria provided, single submitter | clinical testing | This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 489 of the WRN protein (p.Pro489Leu). This variant is present in population databases (rs750052448, gnomAD 0.004%). This variant has not been reported in the literature in individuals affected with WRN-related conditions. ClinVar contains an entry for this variant (Variation ID: 362800). 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. RNA analysis performed to evaluate the impact of this missense change on mRNA splicing indicates it does not significantly alter splicing (internal data). 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. |
| Institute of Human Genetics, |
RCV000266339 | SCV001440070 | uncertain significance | Werner syndrome | 2019-01-01 | criteria provided, single submitter | clinical testing | |
| Fulgent Genetics, |
RCV000266339 | SCV005676844 | uncertain significance | Werner syndrome | 2024-03-14 | criteria provided, single submitter | clinical testing | |
| Ambry Genetics | RCV005286074 | SCV005962673 | uncertain significance | Inborn genetic diseases | 2025-01-17 | criteria provided, single submitter | clinical testing | The c.1466C>T (p.P489L) alteration is located in exon 12 (coding exon 11) of the WRN gene. This alteration results from a C to T substitution at nucleotide position 1466, causing the proline (P) at amino acid position 489 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. |