ClinVar Miner

Submissions for variant NM_001267550.2(TTN):c.19016A>G (p.Tyr6339Cys)

gnomAD frequency: 0.00022  dbSNP: rs192553687
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Total submissions: 13
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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 RCV000154987 SCV000204669 uncertain significance not specified 2014-03-24 criteria provided, single submitter clinical testing The Tyr5095Cys variant in TTN has not been reported in individuals with cardiomy opathy, but has been identified in 3/8186 chromosomes by the NHLBI Exome Sequenc ing Project (http://evs.gs.washington.edu/EVS/) and in 1.0% (2/194) of Han Chine se chromosomes by the 1000 Genomes Project (dbSNP rs192553687). Computational pr ediction tools and conservation analysis suggest that this variant may not impac t the protein, though this information is not predictive enough to rule out path ogenicity. Additional information is needed to fully assess the clinical signifi cance of this variant.
Eurofins Ntd Llc (ga) RCV000724663 SCV000231881 uncertain significance not provided 2016-09-27 criteria provided, single submitter clinical testing
GeneDx RCV000724663 SCV000238262 likely benign not provided 2019-03-28 criteria provided, single submitter clinical testing This variant is associated with the following publications: (PMID: 27066507)
Invitae RCV000232825 SCV000286480 uncertain significance Dilated cardiomyopathy 1G; Autosomal recessive limb-girdle muscular dystrophy type 2J 2018-01-09 criteria provided, single submitter clinical testing
Illumina Laboratory Services, Illumina RCV001129645 SCV001289185 benign Myopathy, myofibrillar, 9, with early respiratory failure 2017-04-28 criteria provided, single submitter clinical testing This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign.
Illumina Laboratory Services, Illumina RCV001129646 SCV001289186 uncertain significance Early-onset myopathy with fatal cardiomyopathy 2017-04-28 criteria provided, single submitter clinical testing This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance.
Illumina Laboratory Services, Illumina RCV001129647 SCV001289187 uncertain significance Dilated cardiomyopathy 1G 2017-04-28 criteria provided, single submitter clinical testing This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. However, the evidence from the literature, in combination with allele frequency data from public databases where available, was not sufficient to rule this variant in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance.
Illumina Laboratory Services, Illumina RCV001132363 SCV001292022 benign Tibial muscular dystrophy 2017-04-28 criteria provided, single submitter clinical testing This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign.
Illumina Laboratory Services, Illumina RCV001132364 SCV001292023 uncertain significance Autosomal recessive limb-girdle muscular dystrophy type 2J 2017-04-28 criteria provided, single submitter clinical testing This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance.
Women's Health and Genetics/Laboratory Corporation of America, LabCorp RCV000154987 SCV001362587 uncertain significance not specified 2019-08-12 criteria provided, single submitter clinical testing Variant summary: TTN c.15284A>G (p.Tyr5095Cys) results in a non-conservative amino acid change located in the Immunoglobulin V-set domain (IPR013106) of the encoded protein sequence. Two of four in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00012 in 246820 control chromosomes. This frequency is not significantly higher than expected for a pathogenic variant in TTN causing Cardiomyopathy (0.00012 vs 0.00063), allowing no conclusion about variant significance. c.15284A>G has been reported in the literature in at-least one individual affected with ARVC (Ceyhan-Birsoy_2015). This report does not provide unequivocal conclusions about association of the variant with Cardiomyopathy. Co-occurrences with other another likely pathogenic variant has been reported (PKP2 Exon 8 del in the patient with ARVC mentioned above), providing supporting evidence for a benign role. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Three clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as uncertain significance.
Mayo Clinic Laboratories, Mayo Clinic RCV000724663 SCV001714658 uncertain significance not provided 2020-08-05 criteria provided, single submitter clinical testing
Athena Diagnostics RCV000724663 SCV002770596 uncertain significance not provided 2022-02-21 criteria provided, single submitter clinical testing
Revvity Omics, Revvity RCV000724663 SCV003822290 uncertain significance not provided 2019-06-21 criteria provided, single submitter clinical testing

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