ClinVar Miner

Submissions for variant NM_001267550.2(TTN):c.83618T>C (p.Val27873Ala) (rs200775919)

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Total submissions: 14
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Biesecker Lab/Clinical Genomics Section,National Institutes of Health RCV000172229 SCV000051122 uncertain significance not provided 2013-06-24 criteria provided, single submitter research
Laboratory for Molecular Medicine, Partners HealthCare Personalized Medicine RCV000040697 SCV000064388 uncertain significance not specified 2013-11-05 criteria provided, single submitter clinical testing The Val25305Ala variant in TTN has now been identified by our laboratory in 2 in dividuals with cardiomyopathy (1 adult with HCM and 1 neonate with DCM). It has been identified in 2/8228 European American chromosomes by the NHLBI Exome Sequ encing Project (http://evs.gs.washington.edu/EVS/; dbSNP rs200775919). Computati onal analyses (biochemical amino acid properties, conservation, AlignGVGD, PolyP hen2, and SIFT) do not provide strong support for or against an impact to the pr otein. Additional information is needed to fully assess the clinical significanc e of the Val25305Ala variant.
EGL Genetic Diagnostics,Eurofins Clinical Diagnostics RCV000172229 SCV000228519 uncertain significance not provided 2015-05-04 criteria provided, single submitter clinical testing
Illumina Clinical Services Laboratory,Illumina RCV000320147 SCV000421255 benign Tibial muscular dystrophy 2018-01-13 criteria provided, single submitter clinical testing This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease.
Illumina Clinical Services Laboratory,Illumina RCV000372050 SCV000421256 uncertain significance Limb-girdle muscular dystrophy, type 2J 2018-01-13 criteria provided, single submitter clinical testing This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease.
Illumina Clinical Services Laboratory,Illumina RCV000341923 SCV000421258 benign Myopathy, myofibrillar, 9, with early respiratory failure 2018-01-13 criteria provided, single submitter clinical testing This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease.
Illumina Clinical Services Laboratory,Illumina RCV000380228 SCV000421259 uncertain significance Dilated cardiomyopathy 1G 2018-01-13 criteria provided, single submitter clinical testing This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease.
Illumina Clinical Services Laboratory,Illumina RCV000283706 SCV000421260 uncertain significance Myopathy, early-onset, with fatal cardiomyopathy 2018-01-13 criteria provided, single submitter clinical testing This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease.
Invitae RCV000559104 SCV000643774 uncertain significance Dilated cardiomyopathy 1G; Limb-girdle muscular dystrophy, type 2J 2017-05-18 criteria provided, single submitter clinical testing
Ambry Genetics RCV000620676 SCV000736017 uncertain significance Cardiovascular phenotype 2017-08-31 criteria provided, single submitter clinical testing Insufficient evidence
Fulgent Genetics,Fulgent Genetics RCV000764310 SCV000895329 uncertain significance Dilated cardiomyopathy 1G; Limb-girdle muscular dystrophy, type 2J; Tibial muscular dystrophy; Myopathy, myofibrillar, 9, with early respiratory failure; Myopathy, early-onset, with fatal cardiomyopathy; Familial hypertrophic cardiomyopathy 9 2018-10-31 criteria provided, single submitter clinical testing
GeneDx RCV000172229 SCV000981224 likely benign not provided 2018-03-22 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.
CeGaT Praxis fuer Humangenetik Tuebingen RCV000172229 SCV001248637 uncertain significance not provided 2019-10-01 criteria provided, single submitter clinical testing
Integrated Genetics/Laboratory Corporation of America RCV000040697 SCV001362871 uncertain significance not specified 2019-11-18 criteria provided, single submitter clinical testing Variant summary: TTN c.75914T>C (p.Val25305Ala) results in a non-conservative amino acid change located in the A-band of the encoded protein sequence. Three of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00025 in 246160 control chromosomes. This frequency is not significantly higher than expected for a pathogenic variant in TTN causing Cardiomyopathy (0.00025 vs 0.00063), allowing no conclusion about variant significance. To our knowledge, no occurrence of c.75914T>C in individuals affected with Cardiomyopathy and no experimental evidence demonstrating its impact on protein function have been reported. Six clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. Based on the evidence outlined above, the variant was classified as uncertain significance.

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