ClinVar Miner

Submissions for variant NM_005076.5(CNTN2):c.1519G>A (p.Asp507Asn)

dbSNP: rs2151194531
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001983488 SCV002271615 uncertain significance Epilepsy, familial adult myoclonic, 5 2022-06-13 criteria provided, single submitter clinical testing This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 507 of the CNTN2 protein (p.Asp507Asn). This variant also falls at the last nucleotide of exon 12, which is part of the consensus splice site for this exon. 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. Variants that disrupt the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C15"). This variant has not been reported in the literature in individuals affected with CNTN2-related conditions. This variant is not present in population databases (gnomAD no frequency).

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