ClinVar Miner

Submissions for variant NM_014141.6(CNTNAP2):c.14C>T (p.Pro5Leu)

gnomAD frequency: 0.00007  dbSNP: rs779710846
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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 RCV001938112 SCV002182639 uncertain significance Cortical dysplasia-focal epilepsy syndrome 2021-08-30 criteria provided, single submitter clinical testing This sequence change replaces proline with leucine at codon 5 of the CNTNAP2 protein (p.Pro5Leu). The proline residue is weakly conserved and there is a moderate physicochemical difference between proline and leucine. While this variant is present in population databases (rs779710846), the frequency information is unreliable, as metrics indicate poor data quality at this position in the ExAC database. This variant has not been reported in the literature in individuals affected with CNTNAP2-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The leucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect 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.

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