ClinVar Miner

Submissions for variant NM_001267550.2(TTN):c.104905C>A (p.Pro34969Thr)

gnomAD frequency: 0.00001  dbSNP: rs1256480602
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV002030083 SCV002115204 uncertain significance Dilated cardiomyopathy 1G; Autosomal recessive limb-girdle muscular dystrophy type 2J 2021-08-21 criteria provided, single submitter clinical testing This sequence change replaces proline with threonine at codon 34969 of the TTN protein (p.Pro34969Thr). There is a small physicochemical difference between proline and threonine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals affected with TTN-related conditions. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. 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. This variant is located in the M band of TTN (PMID: 25589632). Variants in this region may be relevant for neuromuscular disorders, but have not been definitively shown to cause cardiomyopathy (PMID: 23975875).

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