ClinVar Miner

Submissions for variant NM_000363.5(TNNI3):c.451G>A (p.Ala151Thr)

dbSNP: rs730881072
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000159224 SCV000209170 uncertain significance not provided 2020-04-06 criteria provided, single submitter clinical testing Has not been previously published as pathogenic or benign to our knowledge; In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Not observed in large population cohorts (Lek et al., 2016); Reported in ClinVar but additional evidence is not available (ClinVar Variant ID 181581; Landrum et al., 2016)
Invitae RCV000551025 SCV000623783 uncertain significance Hypertrophic cardiomyopathy 2023-12-13 criteria provided, single submitter clinical testing This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 151 of the TNNI3 protein (p.Ala151Thr). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with dilated cardiomyopathy (Invitae). ClinVar contains an entry for this variant (Variation ID: 181581). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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.
Ambry Genetics RCV002336370 SCV002635175 uncertain significance Cardiovascular phenotype 2019-10-31 criteria provided, single submitter clinical testing The p.A151T variant (also known as c.451G>A), located in coding exon 7 of the TNNI3 gene, results from a G to A substitution at nucleotide position 451. The alanine at codon 151 is replaced by threonine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.

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