ClinVar Miner

Submissions for variant NM_001904.4(CTNNB1):c.999_1006delinsT (p.Glu334fs)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Clinical Genomics Laboratory, Washington University in St. Louis RCV005251520 SCV005902209 pathogenic CTNNB1-related disorder 2024-12-16 criteria provided, single submitter clinical testing A CTNNB1 c.999_1006delinsT (p.Glu334Tyrfs*9) variant was identified at an allelic fraction consistent with somatic origin. To our knowledge, this variant has not been reported in the medical literature. It is absent from the general population (gnomAD v.4.1.0), indicating it is not a common variant. This variant causes a frameshift by deleting seven nucleotides followed by a single nucleotide variant, leading to a premature termination codon, which is predicted to lead to nonsense mediated decay. Based on available information and an internally developed protocol informed by the ACMG/AMP guidelines for variant interpretation and gene-specific practices from the ClinGen Criteria Specification Registry (Leon-Quintero FZ et al., PMID: 39434542), the CTNNB1 c.999_1006delinsT (p.Glu334Tyrfs*9) variant is pathogenic.

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