Submissions for variant NM_001267550.2(TTN):c.98390A>G (p.Asn32797Ser)

gnomAD frequency: 0.00504  dbSNP: rs149001703

Total submissions: 25

Submitter	RCV	SCV	Clinical significance	Condition	Last evaluated	Review status	Method	Comment
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	RCV000040869	SCV000064560	likely benign	not specified	2017-08-18	criteria provided, single submitter	clinical testing	p.Asn30229Ser in exon 301 of TTN: This variant is not expected to have clinical significance because it has been identified in 0.7% (866/125740) of European chr omosomes, including 4 homozygotes, by the Genome Aggregation Database (gnomAD, h ttp://gnomad.broadinstitute.org; dbSNP rs149001703).
GeneDx	RCV000040869	SCV000169444	benign	not specified	2013-01-31	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	RCV001082901	SCV000286950	benign	Dilated cardiomyopathy 1G; Autosomal recessive limb-girdle muscular dystrophy type 2J	2024-01-31	criteria provided, single submitter	clinical testing
PreventionGenetics, part of Exact Sciences	RCV000040869	SCV000315614	likely benign	not specified		criteria provided, single submitter	clinical testing
Eurofins Ntd Llc (ga)	RCV000040869	SCV000333233	benign	not specified	2015-08-10	criteria provided, single submitter	clinical testing
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics	RCV000419770	SCV000510867	likely benign	not provided	2016-11-08	criteria provided, single submitter	clinical testing	Converted during submission to Likely benign.
Ambry Genetics	RCV000621374	SCV000735356	benign	Cardiovascular phenotype	2015-09-18	criteria provided, single submitter	clinical testing	This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.
CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario	RCV000768846	SCV000900219	likely benign	Cardiomyopathy	2017-07-14	criteria provided, single submitter	clinical testing
Center for Advanced Laboratory Medicine, UC San Diego Health, University of California San Diego	RCV000852783	SCV000995506	benign	Long QT syndrome	2018-10-17	criteria provided, single submitter	clinical testing
Athena Diagnostics	RCV000419770	SCV001146555	benign	not provided	2018-08-29	criteria provided, single submitter	clinical testing
CeGaT Center for Human Genetics Tuebingen	RCV000419770	SCV001152620	likely benign	not provided	2024-05-01	criteria provided, single submitter	clinical testing	TTN: BP4, BS2
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	RCV000419770	SCV001156928	benign	not provided	2022-10-21	criteria provided, single submitter	clinical testing
Illumina Laboratory Services, Illumina	RCV001129725	SCV001289268	uncertain significance	Autosomal recessive limb-girdle muscular dystrophy type 2J	2017-04-27	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	RCV001129726	SCV001289269	likely benign	Dilated cardiomyopathy 1G	2017-04-27	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. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign.
Illumina Laboratory Services, Illumina	RCV001132433	SCV001292093	benign	Myopathy, myofibrillar, 9, with early respiratory failure	2017-04-27	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	RCV001132434	SCV001292094	uncertain significance	Early-onset myopathy with fatal cardiomyopathy	2017-04-27	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	RCV001132435	SCV001292095	benign	Tibial muscular dystrophy	2017-04-27	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.
Women's Health and Genetics/Laboratory Corporation of America, LabCorp	RCV000040869	SCV001362714	benign	not specified	2020-10-19	criteria provided, single submitter	clinical testing	Variant summary: TTN c.90686A>G (p.Asn30229Ser) results in a conservative amino acid change located in the A-band region 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 0.0045 in 248154 control chromosomes, predominantly at a frequency of 0.0071 within the Non-Finnish European subpopulation in the gnomAD database, including 3 homozygotes. The observed variant frequency within Non-Finnish European control individuals in the gnomAD database is approximately 11-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 found primarily in populations of Non-Finnish European origin. Twelve ClinVar submitters (evaluation after 2014) cite the variant as benign/likely benign while one ClinVar submitter (evaluation after 2014) cites it as uncertain significance. Based on the evidence outlined above, the variant was classified as benign.
Genetic Services Laboratory, University of Chicago	RCV000040869	SCV000153411	likely benign	not specified		no assertion criteria provided	clinical testing	Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed.
Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen	RCV000419770	SCV001741399	likely benign	not provided		no assertion criteria provided	clinical testing
Clinical Genetics, Academic Medical Center	RCV000040869	SCV001924007	benign	not specified		no assertion criteria provided	clinical testing
Genome Diagnostics Laboratory, University Medical Center Utrecht	RCV000040869	SCV001932833	benign	not specified		no assertion criteria provided	clinical testing
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+	RCV000040869	SCV001954914	benign	not specified		no assertion criteria provided	clinical testing
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	RCV000040869	SCV001974832	benign	not specified		no assertion criteria provided	clinical testing
Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)	RCV000419770	SCV002035765	likely benign	not provided		no assertion criteria provided	clinical testing