ClinVar Miner

Submissions for variant NM_176787.5(PIGN):c.1217G>C (p.Arg406Thr)

dbSNP: rs1444744679
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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 RCV001941096 SCV002216452 uncertain significance Multiple congenital anomalies-hypotonia-seizures syndrome 1 2023-11-28 criteria provided, single submitter clinical testing This sequence change replaces arginine, which is basic and polar, with threonine, which is neutral and polar, at codon 406 of the PIGN protein (p.Arg406Thr). This variant is present in population databases (no rsID available, gnomAD 0.007%). This variant has not been reported in the literature in individuals affected with PIGN-related conditions. ClinVar contains an entry for this variant (Variation ID: 1432097). 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) performed at Invitae indicates that this missense variant is not expected to disrupt PIGN protein function with a negative predictive value of 80%. 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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