ClinVar Miner

Submissions for variant NM_000553.6(WRN):c.2448+1_2448+2insGCCGGGCGCGGTGGCTCACGCCTGTAATCCCAGCACTTTGGGAGGCCGAGGCGGGTGGATCATGAGGTCAGGAGATCGAGACCATCCTGGCTAACAAGGTGAAACCCCGTCTNNNNNNNNNNAAAAAAAAAAAAAAAAAAAAAAGAGATGAAATTCAGG

dbSNP: rs2130306240
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV002004008 SCV002287695 likely pathogenic Werner syndrome 2023-08-29 criteria provided, single submitter clinical testing This sequence change affects a splice site in intron 20 of the WRN gene. RNA analysis indicates that disruption of this splice site induces altered splicing and may result in an absent or disrupted protein product. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. Studies have shown that disruption of this splice site results in skipping of exon 20 and introduces a premature termination codon (Invitae). The resulting mRNA is expected to undergo nonsense-mediated decay. Disruption of this splice site has been observed in individual(s) with clinical features of Werner syndrome (PMID: 9012406, 30140198). This variant is not present in population databases (gnomAD no frequency).

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