ClinVar Miner

Submissions for variant NM_001267550.2(TTN):c.39689C>T (p.Ala13230Val) (rs148140756)

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Total submissions: 12
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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 RCV000172670 SCV000055011 likely benign not provided 2013-06-24 criteria provided, single submitter research
Laboratory for Molecular Medicine,Partners HealthCare Personalized Medicine RCV000152359 SCV000201278 likely benign not specified 2014-04-17 criteria provided, single submitter clinical testing p.Ala10796Val in exon 163 of TTN: This variant is not expected to have clinical significance due to a lack of conservation across species, including mammals. Of note, >40 species including primates, rats and mice have a valine (Val) at this position despite high nearby amino acid conservation. The Ala10796Val variant a lso been identified in 0.21% (17/8192) of European American chromosomes by the N HLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS/; dbSNP rs148140 756).
GeneDx RCV000152359 SCV000237135 likely benign not specified 2018-03-01 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.
EGL Genetic Diagnostics, Eurofins Clinical Diagnostics RCV000172670 SCV000345128 uncertain significance not provided 2017-06-07 criteria provided, single submitter clinical testing
Invitae RCV001086600 SCV000555245 likely benign Dilated cardiomyopathy 1G; Limb-girdle muscular dystrophy, type 2J 2020-11-18 criteria provided, single submitter clinical testing
Athena Diagnostics Inc RCV000172670 SCV001146395 likely benign not provided 2019-04-16 criteria provided, single submitter clinical testing
Illumina Clinical Services Laboratory,Illumina RCV001129202 SCV001288710 uncertain significance Myopathy, early-onset, with fatal cardiomyopathy 2018-01-12 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 RCV001129203 SCV001288711 uncertain significance Dilated cardiomyopathy 1G 2018-01-12 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 RCV001129204 SCV001288712 benign Tibial muscular dystrophy 2018-01-12 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 RCV001129205 SCV001288713 benign Myopathy, myofibrillar, 9, with early respiratory failure 2018-01-12 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 RCV001131897 SCV001291541 uncertain significance Limb-girdle muscular dystrophy, type 2J 2018-01-12 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.
Women's Health and Genetics/Laboratory Corporation of America, LabCorp RCV000152359 SCV001554606 benign not specified 2021-03-25 criteria provided, single submitter clinical testing Variant summary: TTN c.32387C>T (p.Ala10796Val) results in a non-conservative amino acid change located in the I-band region (cardiodb.org) of the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.0005 in 238506 control chromosomes, predominantly at a frequency of 0.0015 within the Latino subpopulation in the gnomAD database. The observed variant frequency within Latino control individuals in the gnomAD database is approximately 3.8- fold the estimated maximal expected allele frequency for a pathogenic variant in TTN causing Dilated Cardiomyopathy phenotype (0.00039), strongly suggesting that the variant is a benign polymorphism found primarily in populations of Latino origin. c.32387C>T has been reported in the literature in at least one individual affected with Cardiomyopathy without strong evidence for causality (e.g. Lopes_2013). This report does not provide unequivocal conclusions about association of the variant with Dilated Cardiomyopathy. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Six other clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation, citing the variant as benign/likely benign (n=4) and uncertain significance (n=2). Based on the evidence outlined above, the variant was classified as benign.

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