ClinVar Miner

Submissions for variant NM_001378609.3(OTOGL):c.4199+1G>A

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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV003732237 SCV004538118 likely pathogenic not provided 2024-01-25 criteria provided, single submitter clinical testing This sequence change affects a donor splice site in intron 34 of the OTOGL gene. It is expected to disrupt RNA splicing. Variants that disrupt the donor or acceptor splice site typically lead to a loss of protein function (PMID: 16199547), and loss-of-function variants in OTOGL are known to be pathogenic (PMID: 23122586). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with OTOGL-related conditions. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic.
Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center RCV003989861 SCV004806068 uncertain significance Autosomal recessive nonsyndromic hearing loss 84B 2024-03-25 criteria provided, single submitter clinical testing
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine RCV004018006 SCV004848709 likely pathogenic Rare genetic deafness 2022-06-30 criteria provided, single submitter clinical testing The c.4172+1G>A variant in OTOGL has not been previously reported in individuals with nonsyndromic hearing loss and was absent from large population studies. This variant occurs within the canonical splice site (+/- 1,2) and is predicted to cause altered splicing leading to an abnormal or absent protein. Loss of function of the OTOGL gene is an established disease mechanism in autosomal recessive nonsyndromic hearing loss. In summary, although additional studies are required to fully establish its clinical significance, this variant meets criteria to be classified as likely pathogenic for autosomal recessive nonsyndromic hearing loss. ACMG/AMP criteria applied: PVS1, PM2_Supporting.

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