ClinVar Miner

Submissions for variant NM_004369.4(COL6A3):c.7558A>T (p.Thr2520Ser)

gnomAD frequency: 0.00006  dbSNP: rs144152285
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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Eurofins Ntd Llc (ga) RCV000290454 SCV000341905 uncertain significance not provided 2016-05-24 criteria provided, single submitter clinical testing
Illumina Laboratory Services, Illumina RCV001138288 SCV001298329 uncertain significance Collagen 6-related myopathy 2018-01-12 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.
Revvity Omics, Revvity RCV000290454 SCV003832977 uncertain significance not provided 2019-10-16 criteria provided, single submitter clinical testing
Labcorp Genetics (formerly Invitae), Labcorp RCV003631111 SCV004504158 uncertain significance Bethlem myopathy 1A 2024-06-22 criteria provided, single submitter clinical testing This sequence change replaces threonine, which is neutral and polar, with serine, which is neutral and polar, at codon 2520 of the COL6A3 protein (p.Thr2520Ser). This variant is present in population databases (rs144152285, gnomAD 0.008%). This variant has not been reported in the literature in individuals affected with COL6A3-related conditions. ClinVar contains an entry for this variant (Variation ID: 287946). 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 COL6A3 protein function with a negative predictive value of 80%. 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.

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