ClinVar Miner

Submissions for variant NM_000090.4(COL3A1):c.1347C>T (p.Arg449=)

gnomAD frequency: 0.00003  dbSNP: rs755731385
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Total submissions: 5
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Illumina Laboratory Services, Illumina RCV001143319 SCV001303834 benign Ehlers-Danlos syndrome, type 4 2018-01-12 criteria provided, single submitter clinical testing This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease.
Color Diagnostics, LLC DBA Color Health RCV001183793 SCV001349618 likely benign Familial thoracic aortic aneurysm and aortic dissection 2019-10-14 criteria provided, single submitter clinical testing
Labcorp Genetics (formerly Invitae), Labcorp RCV001143319 SCV003465628 uncertain significance Ehlers-Danlos syndrome, type 4 2024-01-22 criteria provided, single submitter clinical testing This sequence change affects codon 449 of the COL3A1 mRNA. It is a 'silent' change, meaning that it does not change the encoded amino acid sequence of the COL3A1 protein. It affects a nucleotide within the consensus splice site. This variant is present in population databases (rs755731385, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with COL3A1-related conditions. ClinVar contains an entry for this variant (Variation ID: 899074). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant is not likely to affect RNA splicing. 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 RCV001143319 SCV004829328 likely benign Ehlers-Danlos syndrome, type 4 2024-07-20 criteria provided, single submitter clinical testing
Women's Health and Genetics/Laboratory Corporation of America, LabCorp RCV004782657 SCV005395533 uncertain significance not specified 2024-09-09 criteria provided, single submitter clinical testing

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