ClinVar Miner

Submissions for variant NM_001292063.2(OTOG):c.6712G>A (p.Gly2238Ser)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Laboratory for Molecular Medicine, Partners HealthCare Personalized Medicine RCV001195626 SCV001366025 likely pathogenic Rare genetic deafness 2020-07-16 criteria provided, single submitter clinical testing The p.Gly2250Ser variant in OTOG has been previously reported by our laboratory in 1 individual with hearing loss who was compound heterozygous for a second pathogenic OTOG variant. It has also been identified in 0.02% (3/15452) of African and in 0.002% (4/176116) of the total chromosomes by gnomAD (http://gnomad.broadinstitute.org). However, this frequency is low enough to be consistent with a recessive allele frequency. This variant is located at the last base of the exon, which is a highly conserved position in the 5' splice site region. Computational and splicing prediction tools as well as conservation analysis suggest an impact to the protein and on splicing. Given the location of the variant in the splice consensus sequence and the predicted impact to splicing, the variant may lead to a truncated or absent protein (PVS1_Moderate). In summary, although additional studies are required to fully establish its clinical significance, this variant is classified as likely pathogenic for autosomal recessive sensorineural hearing loss. ACMG/AMP Criteria applied: PM3, PM2, PVS1_Moderate.

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