ClinVar Miner

Submissions for variant NM_001105206.3(LAMA4):c.188C>T (p.Ala63Val)

gnomAD frequency: 0.00001  dbSNP: rs370868386
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Genetics and Genomics Program, Sidra Medicine RCV001293181 SCV001434179 likely benign Primary dilated cardiomyopathy criteria provided, single submitter research
Labcorp Genetics (formerly Invitae), Labcorp RCV001362930 SCV001558990 uncertain significance Dilated cardiomyopathy 1JJ 2024-12-12 criteria provided, single submitter clinical testing This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 63 of the LAMA4 protein (p.Ala63Val). This variant is present in population databases (rs370868386, gnomAD 0.005%). This variant has not been reported in the literature in individuals affected with LAMA4-related conditions. ClinVar contains an entry for this variant (Variation ID: 978755). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Benign". The valine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect 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.
Ambry Genetics RCV004639537 SCV005130401 likely benign Cardiovascular phenotype 2024-03-20 criteria provided, single submitter clinical testing This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.

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