ClinVar Miner

Submissions for variant NM_001276345.2(TNNT2):c.472C>T (p.Arg158Trp)

gnomAD frequency: 0.00001  dbSNP: rs730881123
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Total submissions: 6
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000159339 SCV000209285 uncertain significance not provided 2023-07-14 criteria provided, single submitter clinical testing Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 32041989, 32880476, 29540472, 30847666)
Invitae RCV000697959 SCV000826594 uncertain significance Hypertrophic cardiomyopathy 2; Dilated cardiomyopathy 1D; Cardiomyopathy, familial restrictive, 3 2023-08-16 criteria provided, single submitter clinical testing This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 148 of the TNNT2 protein (p.Arg148Trp). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with dilated cardiomyopathy (PMID: 29540472, 30847666, 32041989). ClinVar contains an entry for this variant (Variation ID: 181643). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt TNNT2 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.
Color Diagnostics, LLC DBA Color Health RCV001189394 SCV001356677 uncertain significance Cardiomyopathy 2020-03-09 criteria provided, single submitter clinical testing This missense variant replaces arginine with tryptophan at codon 148 of the TNNT2 protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function (internally defined REVEL score threshold >= 0.7, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with cardiovascular disorders in the literature. This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.
Genome-Nilou Lab RCV003453251 SCV004181355 uncertain significance Dilated cardiomyopathy 1D 2023-04-11 criteria provided, single submitter clinical testing
Genome-Nilou Lab RCV003453252 SCV004181356 uncertain significance Cardiomyopathy, familial restrictive, 3 2023-04-11 criteria provided, single submitter clinical testing
Genome-Nilou Lab RCV003453250 SCV004181357 uncertain significance Hypertrophic cardiomyopathy 2 2023-04-11 criteria provided, single submitter clinical testing

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