ClinVar Miner

Submissions for variant NM_001395413.1(POR):c.272C>T (p.Ala91Val)

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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 RCV003827922 SCV004621610 uncertain significance Congenital adrenal hyperplasia due to cytochrome P450 oxidoreductase deficiency 2023-11-24 criteria provided, single submitter clinical testing This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 94 of the POR protein (p.Ala94Val). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with clinical features of POR deficiency (Invitae). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. 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 POR 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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