ClinVar Miner

Submissions for variant NM_000138.5(FBN1):c.4745C>T (p.Thr1582Ile)

dbSNP: rs1597548610
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV003321404 SCV004025812 uncertain significance not provided 2023-02-09 criteria provided, single submitter clinical testing Has not been previously published as pathogenic or benign to our knowledge; Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Does not affect a cysteine residue within a calcium-binding EGF-like domain or a TGF-binding protein domain of the FBN1 gene; cysteine substitutions in the calcium-binding EGF-like domains represent the majority of pathogenic missense changes associated with FBN1-related disorders (Collod-Beroud et al., 2003); This variant is associated with the following publications: (PMID: 12938084)
Labcorp Genetics (formerly Invitae), Labcorp RCV003777322 SCV004579126 uncertain significance Marfan syndrome; Familial thoracic aortic aneurysm and aortic dissection 2023-05-20 criteria provided, single submitter clinical testing 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. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. This variant has not been reported in the literature in individuals affected with FBN1-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces threonine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 1582 of the FBN1 protein (p.Thr1582Ile).

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