ClinVar Miner

Submissions for variant NM_001267550.2(TTN):c.94805_94806del (p.Pro31602fs)

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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Center for Human Genetics, University of Leuven RCV003237374 SCV002817408 likely pathogenic Primary dilated cardiomyopathy 2022-12-31 criteria provided, single submitter clinical testing
Labcorp Genetics (formerly Invitae), Labcorp RCV003775551 SCV004605247 likely pathogenic Dilated cardiomyopathy 1G; Autosomal recessive limb-girdle muscular dystrophy type 2J 2024-01-31 criteria provided, single submitter clinical testing This sequence change creates a premature translational stop signal (p.Pro31602Argfs*6) in the TTN gene. While this is not anticipated to result in nonsense mediated decay, it is expected to create a truncated TTN protein. This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with TTN-related conditions. ClinVar contains an entry for this variant (Variation ID: 1809794). This variant is located in the A band of TTN (PMID: 25589632). Truncating variants in this region are significantly overrepresented in patients affected with dilated cardiomyopathy (PMID: 25589632). Truncating variants in this region have also been reported in individuals affected with autosomal recessive centronuclear myopathy (PMID: 23975875). 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.

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