ClinVar Miner

Submissions for variant NM_001267550.2(TTN):c.79640G>A (p.Arg26547Gln)

gnomAD frequency: 0.00001  dbSNP: rs771534555
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000471134 SCV000542653 uncertain significance Dilated cardiomyopathy 1G; Autosomal recessive limb-girdle muscular dystrophy type 2J 2016-07-31 criteria provided, single submitter clinical testing
Revvity Omics, Revvity Omics RCV000184859 SCV003826571 uncertain significance not provided 2022-01-27 criteria provided, single submitter clinical testing
GeneDx RCV000184859 SCV000237590 not provided not provided 2014-09-09 no assertion provided clinical testing Missense variants in the TTN gene are considered 'unclassified' if they are not previously reported in the literature and do not have >1% frequency in the population to be considered a polymorphism. Research indicates that truncating mutations in the TTN gene are expected to account for approximately 25% of familial and 18% of sporadic idiopathic DCM; however, truncating variants in the TTN gene have been reported in approximately 3% of reported control alleles. There has been little investigation into non-truncating variants. (Herman D et al. Truncations of titin causing dilated cardiomyopathy. N Eng J Med 366:619-628, 2012) The variant is found in DCM-CRDM panel(s).

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