ClinVar Miner

Submissions for variant NM_001267550.2(TTN):c.103739T>G (p.Met34580Arg)

dbSNP: rs775137392
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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 RCV001039801 SCV001203348 uncertain significance Dilated cardiomyopathy 1G; Autosomal recessive limb-girdle muscular dystrophy type 2J 2019-12-06 criteria provided, single submitter clinical testing Algorithms developed to predict the effect of missense changes on protein structure and function are unavailable for the TTN gene. 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). 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 has not been reported in the literature in individuals with TTN-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces methionine with arginine at codon 34580 of the TTN protein (p.Met34580Arg). There is a moderate physicochemical difference between methionine and arginine.
Fulgent Genetics, Fulgent Genetics RCV002489563 SCV002790400 uncertain significance Dilated cardiomyopathy 1G; Autosomal recessive limb-girdle muscular dystrophy type 2J; Tibial muscular dystrophy; Myopathy, myofibrillar, 9, with early respiratory failure; Early-onset myopathy with fatal cardiomyopathy; Hypertrophic cardiomyopathy 9 2021-09-15 criteria provided, single submitter clinical testing

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