ClinVar Miner

Submissions for variant NM_000393.5(COL5A2):c.3209G>A (p.Arg1070His)

gnomAD frequency: 0.00018  dbSNP: rs373288848
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Total submissions: 5
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Eurofins Ntd Llc (ga) RCV000178591 SCV000230704 uncertain significance not provided 2014-12-12 criteria provided, single submitter clinical testing
Labcorp Genetics (formerly Invitae), Labcorp RCV002228789 SCV000547892 likely benign Ehlers-Danlos syndrome, classic type, 1 2024-11-11 criteria provided, single submitter clinical testing
GeneDx RCV000178591 SCV001788028 uncertain significance not provided 2023-03-15 criteria provided, single submitter clinical testing Identified by exome sequencing in one individual with a conotruncal heart defect who was compound heterozygous for another variant in the COL5A2 gene (Jin et al., 2017); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 28991257)
Ambry Genetics RCV002321707 SCV002609360 likely benign Familial thoracic aortic aneurysm and aortic dissection 2019-12-27 criteria provided, single submitter clinical testing This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.
Women's Health and Genetics/Laboratory Corporation of America, LabCorp RCV004800318 SCV005422636 likely benign not specified 2024-10-21 criteria provided, single submitter clinical testing Variant summary: COL5A2 c.3209G>A (p.Arg1070His) results in a non-conservative amino acid change in the encoded protein sequence. Five of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 6.8e-05 in 251294 control chromosomes. The observed variant frequency is approximately 11 fold of the estimated maximal expected allele frequency for a pathogenic variant in COL5A2 causing Ehlers-Danlos Syndrome phenotype (6.3e-06). c.3209G>A has been reported in the literature (example: Jin_2017). This report does not provide unequivocal conclusions about association of the variant with Ehlers-Danlos Syndrome. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publication has been ascertained in the context of this evaluation (PMID: 28991257). ClinVar contains an entry for this variant (Variation ID: 197537). Based on the evidence outlined above, the variant was classified as likely benign.

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