ClinVar Miner

Submissions for variant NM_001267550.2(TTN):c.37711G>A (p.Val12571Met)

dbSNP: rs1577039412
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000818960 SCV000959599 uncertain significance Dilated cardiomyopathy 1G; Autosomal recessive limb-girdle muscular dystrophy type 2J 2020-11-30 criteria provided, single submitter clinical testing 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. Nucleotide substitutions within the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site, but this prediction has not been confirmed by published transcriptional studies. This variant is located in the I 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). This variant has not been reported in the literature in individuals with TTN-related disease. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate insufficient coverage at this position in the ExAC database. This sequence change replaces valine with methionine at codon 12571 of the TTN protein (p.Val12571Met) and there is a small physicochemical difference between valine and methionine. This variant also falls at the last nucleotide of exon 185 of the TTN coding sequence, which is part of the consensus splice site for this exon.
Fulgent Genetics, Fulgent Genetics RCV002501130 SCV002785515 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 2021-11-01 criteria provided, single submitter clinical testing

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