ClinVar Miner

Submissions for variant NM_004369.3(COL6A3):c.8807T>C (p.Val2936Ala) (rs1218467207)

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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
EGL Genetic Diagnostics,Eurofins Clinical Diagnostics RCV000733822 SCV000861922 uncertain significance not provided 2018-06-21 criteria provided, single submitter clinical testing
Invitae RCV001220896 SCV001392909 uncertain significance Bethlem myopathy 1 2019-06-26 criteria provided, single submitter clinical testing This sequence change replaces valine with alanine at codon 2936 of the COL6A3 protein (p.Val2936Ala). The valine residue is weakly conserved and there is a small physicochemical difference between valine and alanine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with COL6A3-related conditions. ClinVar contains an entry for this variant (Variation ID: 597643). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0". The alanine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. 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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