ClinVar Miner

Submissions for variant NM_000553.6(WRN):c.25A>G (p.Thr9Ala)

gnomAD frequency: 0.00003  dbSNP: rs757791580
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV000547889 SCV000629659 uncertain significance Werner syndrome 2024-05-20 criteria provided, single submitter clinical testing This sequence change replaces threonine, which is neutral and polar, with alanine, which is neutral and non-polar, at codon 9 of the WRN protein (p.Thr9Ala). This variant is present in population databases (rs757791580, gnomAD 0.007%). 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: 458425). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The alanine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. RNA analysis performed to evaluate the impact of this missense change on mRNA splicing indicates it does not significantly alter splicing (Invitae). 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.
Fulgent Genetics, Fulgent Genetics RCV000547889 SCV005676812 uncertain significance Werner syndrome 2024-03-19 criteria provided, single submitter clinical testing

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