ClinVar Miner

Submissions for variant NM_000090.4(COL3A1):c.4205C>A (p.Ala1402Asp)

dbSNP: rs1688708521
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001341546 SCV001535425 uncertain significance Ehlers-Danlos syndrome, type 4 2020-09-19 criteria provided, single submitter clinical testing This variant has not been reported in the literature in individuals with COL3A1-related conditions. This sequence change replaces alanine with aspartic acid at codon 1402 of the COL3A1 protein (p.Ala1402Asp). The alanine residue is highly conserved and there is a moderate physicochemical difference between alanine and aspartic acid. This variant is not present in population databases (ExAC no frequency). 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 COL3A1 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.
All of Us Research Program, National Institutes of Health RCV001341546 SCV004836178 uncertain significance Ehlers-Danlos syndrome, type 4 2023-12-13 criteria provided, single submitter clinical testing This missense variant replaces alanine with aspartic acid at codon 1402 of the COL3A1 protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function (internally defined REVEL score threshold >= 0.7, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with COL3A1-related disorders in the literature. This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.

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