ClinVar Miner

Submissions for variant NM_001267550.2(TTN):c.1137A>G (p.Arg379=) (rs55972547)

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Total submissions: 14
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Laboratory for Molecular Medicine,Partners HealthCare Personalized Medicine RCV000039867 SCV000063558 benign not specified 2012-04-19 criteria provided, single submitter clinical testing Arg379Arg in exon 7 of TTN: This variant is not expected to have clinical signif icance because it does not alter an amino acid residue and is not located within the splice consensus sequence. This variant has been identified in 0.3% (18/702 0) of European American chromosomes from a broad population by the NHLBI Exome S equencing Project (http://evs.gs.washington.edu/EVS; dbSNP rs55972547). Arg379A rg in exon 7 of TTN (allele frequency = 0.3%, 18/7020: dbSNP rs55972547) **
GeneDx RCV000039867 SCV000237100 benign not specified 2016-02-08 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.
Invitae RCV000226691 SCV000286432 benign Dilated cardiomyopathy 1G; Limb-girdle muscular dystrophy, type 2J 2020-11-21 criteria provided, single submitter clinical testing
Ambry Genetics RCV000248787 SCV000318040 uncertain significance Cardiovascular phenotype 2012-12-28 criteria provided, single submitter clinical testing There is insufficient or conflicting evidence for classification of this alteration.
EGL Genetic Diagnostics, Eurofins Clinical Diagnostics RCV000039867 SCV000334897 benign not specified 2015-09-01 criteria provided, single submitter clinical testing
CHEO Genetics Diagnostic Laboratory,Children's Hospital of Eastern Ontario RCV000769138 SCV000900512 likely benign Cardiomyopathy 2017-03-29 criteria provided, single submitter clinical testing
Illumina Clinical Services Laboratory,Illumina RCV001130574 SCV001290155 likely benign 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 and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease.
Illumina Clinical Services Laboratory,Illumina RCV001130575 SCV001290156 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 RCV001135664 SCV001295453 likely benign 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 and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease.
Illumina Clinical Services Laboratory,Illumina RCV001135665 SCV001295454 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 RCV001135666 SCV001295455 likely benign 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 and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease.
Women's Health and Genetics/Laboratory Corporation of America, LabCorp RCV000039867 SCV001360627 benign not specified 2019-10-07 criteria provided, single submitter clinical testing Variant summary: TTN c.1137A>G results in a synonymous change. Several computational tools predict a significant impact on normal splicing: Five predict the variant creates a 5 prime donor site. However, these predictions have not been confirmed by functional studies. The variant allele was found at a frequency of 0.0042 in 250158 control chromosomes, predominantly at a frequency of 0.023 within the South Asian subpopulation in the gnomAD database, including 14 homozygotes. The observed variant frequency within South Asian control individuals in the gnomAD database is approximately 37 fold of the estimated maximal expected allele frequency for a pathogenic variant in TTN causing Cardiomyopathy phenotype (0.00063), strongly suggesting that the variant is a benign polymorphism. To our knowledge, no occurrence of c.1137A>G in individuals affected with Cardiomyopathy and no experimental evidence demonstrating its impact on protein function have been reported. Four clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation, and all of them classified the variant as benign (3x) / likely benign (1x). Based on the evidence outlined above, the variant was classified as benign.
ARUP Laboratories, Molecular Genetics and Genomics,ARUP Laboratories RCV001287796 SCV001474526 benign none provided 2020-03-12 criteria provided, single submitter clinical testing
Athena Diagnostics Inc RCV000039867 SCV001474960 benign not specified 2019-11-04 criteria provided, single submitter clinical testing

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