ClinVar Miner

Submissions for variant NM_000090.4(COL3A1):c.3764G>T (p.Arg1255Leu)

dbSNP: rs368119434
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Color Diagnostics, LLC DBA Color Health RCV001175709 SCV001339418 uncertain significance Familial thoracic aortic aneurysm and aortic dissection 2021-05-17 criteria provided, single submitter clinical testing This missense variant replaces arginine with leucine at codon 1255 of the COL3A1 protein. Computational prediction is inconclusive regarding the impact of this variant on protein structure and function (internally defined REVEL score threshold 0.5 < inconclusive < 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 cardiovascular disorders in the literature. This variant has been identified in 1/245870 chromosomes 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.
Fulgent Genetics, Fulgent Genetics RCV002497611 SCV002812336 uncertain significance Ehlers-Danlos syndrome, type 4; Polymicrogyria with or without vascular-type Ehlers-Danlos syndrome 2021-08-08 criteria provided, single submitter clinical testing
Labcorp Genetics (formerly Invitae), Labcorp RCV002559682 SCV002963322 uncertain significance Ehlers-Danlos syndrome, type 4 2022-07-22 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. 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 not expected to disrupt COL3A1 protein function. ClinVar contains an entry for this variant (Variation ID: 918217). This variant has not been reported in the literature in individuals affected with COL3A1-related conditions. This variant is present in population databases (rs368119434, gnomAD 0.0009%). This sequence change replaces arginine, which is basic and polar, with leucine, which is neutral and non-polar, at codon 1255 of the COL3A1 protein (p.Arg1255Leu).

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