ClinVar Miner

Submissions for variant NM_001127644.2(GABRA1):c.839C>A (p.Pro280Gln)

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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 RCV003808067 SCV004591878 pathogenic Idiopathic generalized epilepsy; Epilepsy, idiopathic generalized, susceptibility to, 13; Epilepsy, childhood absence 4 2023-10-30 criteria provided, single submitter clinical testing This sequence change replaces proline, which is neutral and non-polar, with glutamine, which is neutral and polar, at codon 280 of the GABRA1 protein (p.Pro280Gln). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with clinical features of developmental and epileptic encephalopathy (Invitae). In at least one individual the variant was observed to be de novo. 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 expected to disrupt GABRA1 protein function with a positive predictive value of 95%. For these reasons, this variant has been classified as Pathogenic.

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