ClinVar Miner

Submissions for variant NM_170707.4(LMNA):c.1337A>G (p.Asp446Gly)

dbSNP: rs58541611
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Eurofins Ntd Llc (ga) RCV000593108 SCV000708903 uncertain significance not provided 2018-07-12 criteria provided, single submitter clinical testing
Invitae RCV001387373 SCV001587988 pathogenic Charcot-Marie-Tooth disease type 2 2023-02-21 criteria provided, single submitter clinical testing This sequence change replaces aspartic acid, which is acidic and polar, with glycine, which is neutral and non-polar, at codon 446 of the LMNA protein (p.Asp446Gly). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with clinical features of limb-girdle muscular dystrophy and dilated cardiomyopathy (Invitae). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 502242). 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 expected to disrupt LMNA protein function. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. This variant disrupts the p.Asp446 amino acid residue in LMNA. Other variant(s) that disrupt this residue have been observed in individuals with LMNA-related conditions (PMID: 14684700, 30107846), which suggests that this may be a clinically significant amino acid residue. For these reasons, this variant has been classified as Pathogenic.
Revvity Omics, Revvity RCV000593108 SCV003814703 uncertain significance not provided 2019-04-25 criteria provided, single submitter clinical testing

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