ClinVar Miner

Submissions for variant NM_000553.6(WRN):c.2986G>A (p.Asp996Asn) (rs138379977)

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Total submissions: 5
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000230775 SCV000285549 uncertain significance Werner syndrome 2020-10-30 criteria provided, single submitter clinical testing This sequence change replaces aspartic acid with asparagine at codon 996 of the WRN protein (p.Asp996Asn). The aspartic acid residue is moderately conserved and there is a small physicochemical difference between aspartic acid and asparagine. This variant is present in population databases (rs138379977, ExAC 0.08%). This variant has not been reported in the literature in individuals with WRN-related disease. ClinVar contains an entry for this variant (Variation ID: 135429). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: Deleterious; PolyPhen-2: Benign; Align-GVGD: Class C0. The asparagine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. 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.
EGL Genetic Diagnostics, Eurofins Clinical Diagnostics RCV000726887 SCV000703872 uncertain significance not provided 2017-01-11 criteria provided, single submitter clinical testing
Illumina Clinical Services Laboratory,Illumina RCV000230775 SCV001327630 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.
Centre for Mendelian Genomics,University Medical Centre Ljubljana RCV000230775 SCV001367674 uncertain significance Werner syndrome 2018-11-04 criteria provided, single submitter clinical testing This variant was classified as: Uncertain significance. The available evidence on this variant's pathogenicity is insufficient or conflicting. The following ACMG criteria were applied in classifying this variant: No criteria apply.
ITMI RCV000122286 SCV000086511 not provided not specified 2013-09-19 no assertion provided reference population

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