ClinVar Miner

Submissions for variant NM_000488.4(SERPINC1):c.657C>G (p.Asn219Lys)

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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 RCV003525766 SCV004264258 uncertain significance Hereditary antithrombin deficiency 2024-01-20 criteria provided, single submitter clinical testing This sequence change replaces asparagine, which is neutral and polar, with lysine, which is basic and polar, at codon 219 of the SERPINC1 protein (p.Asn219Lys). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individuals with antithrombin III deficiency (PMID: 28300866; Invitae). 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) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on SERPINC1 protein function. This variant disrupts the p.Asn219 amino acid residue in SERPINC1. Other variant(s) that disrupt this residue have been observed in individuals with SERPINC1-related conditions (PMID: 28300866), which suggests that this may be a clinically significant amino acid residue. 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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