ClinVar Miner

Submissions for variant NM_001267550.2(TTN):c.103829G>A (p.Arg34610His)

gnomAD frequency: 0.00003  dbSNP: rs550047610
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine RCV000825483 SCV000966786 uncertain significance not specified 2018-08-27 criteria provided, single submitter clinical testing The p.Arg32042His variant in TTN has not been previously reported in individuals with cardiomyopathy, but has been identified in 0.01% (3/30782) of South Asian chromosomes by the Genome Aggregation Database (gnomAD, http://gnomad.broadinsti tute.org). Computational prediction tools and conservation analysis suggest that the variant may impact the protein, though this information is not predictive e nough to determine pathogenicity. In summary, the clinical significance of the p .Arg32042His variant is uncertain. ACMG/AMP Criteria applied: PP3.
Invitae RCV001858395 SCV002223574 uncertain significance Dilated cardiomyopathy 1G; Autosomal recessive limb-girdle muscular dystrophy type 2J 2022-07-17 criteria provided, single submitter clinical testing This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 34610 of the TTN protein (p.Arg34610His). This variant is present in population databases (rs550047610, gnomAD 0.01%). 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: 666944). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. 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.
Fulgent Genetics, Fulgent Genetics RCV002495190 SCV002776893 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 2021-12-30 criteria provided, single submitter clinical testing

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