ClinVar Miner

Submissions for variant NM_001110219.3(GJB6):c.571T>A (p.Phe191Ile)

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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 RCV005213824 SCV005852317 uncertain significance Autosomal recessive nonsyndromic hearing loss 1A; Autosomal recessive nonsyndromic hearing loss 1B; Autosomal dominant nonsyndromic hearing loss 3B; Hidrotic ectodermal dysplasia syndrome 2024-07-31 criteria provided, single submitter clinical testing This sequence change replaces phenylalanine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 191 of the GJB6 protein (p.Phe191Ile). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with GJB6-related conditions. 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 GJB6 protein function with a positive 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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