ClinVar Miner

Submissions for variant NM_001458.5(FLNC):c.6239G>A (p.Gly2080Asp)

dbSNP: rs2128939083
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001980946 SCV002286711 uncertain significance Myofibrillar myopathy 5; Distal myopathy with posterior leg and anterior hand involvement; Hypertrophic cardiomyopathy 26; Dilated Cardiomyopathy, Dominant 2022-09-23 criteria provided, single submitter clinical testing ClinVar contains an entry for this variant (Variation ID: 1492427). This variant has not been reported in the literature in individuals affected with FLNC-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces glycine, which is neutral and non-polar, with aspartic acid, which is acidic and polar, at codon 2080 of the FLNC protein (p.Gly2080Asp). 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) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on FLNC 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.
Victorian Clinical Genetics Services, Murdoch Childrens Research Institute RCV002471213 SCV002768108 uncertain significance Hypertrophic cardiomyopathy 26 2021-05-06 criteria provided, single submitter clinical testing Based on the classification scheme VCGS_Germline_v1.3.4, this variant is classified as VUS - 3A. Following criteria are met: 0103 - Loss of function and gain of function are known mechanisms of disease in this gene and are associated with FLNC-related disease. Loss of function variants have been reported to cause myofibrillar myopathy, 5 (MIM#609524), distal myopathy, 4 (MIM#614065), familial hypertrophic cardiomyopathy, 26 (MIM#617047) and dilated cardiomyopathy. Gain of function variants have also been reported to cause distal myopathy, 4 (MIM#614065) (PMID: 28008423, PMID: 23109048). (I) 0107 - This gene is associated with autosomal dominant disease. (I) 0200 - Variant is predicted to result in a missense amino acid change from glycine to aspartic acid. (I) 0251 - This variant is heterozygous. (I) 0301 - Variant is absent from gnomAD (both v2 and v3). (SP) 0501 - Missense variant consistently predicted to be damaging by multiple in silico tools or highly conserved with a major amino acid change. (SP) 0600 - Variant is located in the annotated filamin-type immunoglobulin domain (NCBI conserved domain). (I) 0710 - Another missense variant comparable to the one identified in this case has inconclusive previous evidence for pathogenicity. The p.Gly2080Arg variant has been reported in one family with cardiomyopathy and has been classified as a VUS based on ACMG guidelines (PMID: 32037394). (I) 0807 - This variant has no previous evidence of pathogenicity. (I) 0905 - No published segregation evidence has been identified for this variant. (I) 1007 - No published functional evidence has been identified for this variant. (I) 1208 - Inheritance information for this variant is not currently available in this individual. (I) Legend: (SP) - Supporting pathogenic, (I) - Information, (SB) - Supporting benign

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