ClinVar Miner

Submissions for variant NM_001267550.2(TTN):c.11008A>C (p.Thr3670Pro)

dbSNP: rs794729589
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000185228 SCV000238083 uncertain significance not specified 2014-10-31 criteria provided, single submitter 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 CARDIOMYOPATHY panel(s).
Baylor Genetics RCV001335351 SCV001528482 uncertain significance Myopathy, myofibrillar, 9, with early respiratory failure 2018-01-18 criteria provided, single submitter clinical testing This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868].
Women's Health and Genetics/Laboratory Corporation of America, LabCorp RCV000185228 SCV004020368 uncertain significance not specified 2023-06-02 criteria provided, single submitter clinical testing Variant summary: TTN c.10303+2516A>C is located at a position not widely known to affect splicing. The variant was absent in 248676 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, no occurrence of c.10303+2516A>C in individuals affected with Limb-Girdle Muscular Dystrophy, Type 2J and no experimental evidence demonstrating its impact on protein function have been reported. One clinical diagnostic laboratory has submitted clinical-significance assessments for this variant to ClinVar after 2014 and classified the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as VUS-possibly benign.

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