ClinVar Miner

Submissions for variant NM_000312.4(PROC):c.901G>A (p.Ala301Thr)

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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 RCV003496958 SCV004276676 uncertain significance Thrombophilia due to protein C deficiency, autosomal dominant 2024-09-09 criteria provided, single submitter clinical testing This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 301 of the PROC protein (p.Ala301Thr). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with clinical features of protein C deficiency disease (PMID: 7605880, 17152060, 24162787). This variant is also known as Ala259Thr. Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt PROC protein function with a positive predictive value of 80%. This variant disrupts the p.Ala301 amino acid residue in PROC. Other variant(s) that disrupt this residue have been observed in individuals with PROC-related conditions (PMID: 1678832), 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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