ClinVar Miner

Submissions for variant NM_001145809.2(MYH14):c.838G>A (p.Val280Ile)

gnomAD frequency: 0.00028  dbSNP: rs202246093
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000658114 SCV000779885 likely benign not provided 2019-08-06 criteria provided, single submitter clinical testing In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge
Illumina Laboratory Services, Illumina RCV001133000 SCV001292685 uncertain significance Autosomal dominant nonsyndromic hearing loss 4A 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, 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.
Labcorp Genetics (formerly Invitae), Labcorp RCV000658114 SCV004318141 uncertain significance not provided 2023-05-30 criteria provided, single submitter clinical testing 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. 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 not expected to disrupt MYH14 protein function. ClinVar contains an entry for this variant (Variation ID: 546265). This variant has not been reported in the literature in individuals affected with MYH14-related conditions. This variant is present in population databases (rs202246093, gnomAD 0.05%), and has an allele count higher than expected for a pathogenic variant. This sequence change replaces valine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 272 of the MYH14 protein (p.Val272Ile).

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