ClinVar Miner

Submissions for variant NM_001267550.2(TTN):c.63589A>G (p.Ile21197Val) (rs72646855)

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Total submissions: 14
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Ambry Genetics RCV000619500 SCV000736912 uncertain significance Cardiovascular phenotype 2017-09-12 criteria provided, single submitter clinical testing Lines of evidence used in support of classification: Insufficient evidence
Athena Diagnostics Inc RCV000040467 SCV000616123 uncertain significance not specified 2017-05-25 criteria provided, single submitter clinical testing
Biesecker Lab/Clinical Genomics Section,National Institutes of Health RCV000082417 SCV000054964 uncertain significance not provided 2013-06-24 criteria provided, single submitter research
Blueprint Genetics RCV000143969 SCV000188850 likely benign Primary familial hypertrophic cardiomyopathy 2013-12-20 no assertion criteria provided clinical testing
EGL Genetic Diagnostics,Eurofins Clinical Diagnostics RCV000082417 SCV000114416 uncertain significance not provided 2017-12-07 criteria provided, single submitter clinical testing
GeneDx RCV000040467 SCV000237405 likely benign not specified 2017-05-11 criteria provided, single submitter clinical testing This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease.
Illumina Clinical Services Laboratory,Illumina RCV000342132 SCV000422389 uncertain significance Hypertrophic cardiomyopathy 2016-06-14 criteria provided, single submitter clinical testing
Illumina Clinical Services Laboratory,Illumina RCV000393151 SCV000422390 uncertain significance Myopathy, early-onset, with fatal cardiomyopathy 2016-06-14 criteria provided, single submitter clinical testing
Illumina Clinical Services Laboratory,Illumina RCV000297845 SCV000422391 uncertain significance Distal myopathy Markesbery-Griggs type 2016-06-14 criteria provided, single submitter clinical testing
Illumina Clinical Services Laboratory,Illumina RCV000357132 SCV000422392 uncertain significance Dilated Cardiomyopathy, Dominant 2016-06-14 criteria provided, single submitter clinical testing
Illumina Clinical Services Laboratory,Illumina RCV000262231 SCV000422393 uncertain significance Hereditary myopathy with early respiratory failure 2016-06-14 criteria provided, single submitter clinical testing
Illumina Clinical Services Laboratory,Illumina RCV000312697 SCV000422394 uncertain significance Limb-Girdle Muscular Dystrophy, Recessive 2016-06-14 criteria provided, single submitter clinical testing
Invitae RCV000231367 SCV000286774 likely benign Dilated cardiomyopathy 1G; Limb-girdle muscular dystrophy, type 2J 2017-12-22 criteria provided, single submitter clinical testing
Laboratory for Molecular Medicine,Partners HealthCare Personalized Medicine RCV000040467 SCV000064158 uncertain significance not specified 2015-04-04 criteria provided, single submitter clinical testing Variant classified as Uncertain Significance - Favor Benign. The p.Ile18629Val v ariant in TTN has been previously identified by our laboratory in 1 Caucasian ad ult with cardiomyopathy, ventricular tachycardia and atrial fibrillation. This v ariant has also been identified in 0.1% (18/16250) of South Asian chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP r s72646855). Isoleucine (Ile) at position 18629 is not conserved in mammals or ev olutionarily distant species. Of note, Xenopus tropicalis and 9 different fish s pecies carry a valine (Val) at this position, raising the possibility that this change may be tolerated. Additional computational prediction tools support that the p.Ile18629Val variant may not impact the protein. In summary, while the clin ical significance of the p.Ile18629Val variant is uncertain, its frequency and p resence in other species suggests that it is more likely to be benign.

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