ClinVar Miner

Submissions for variant NM_001277269.1(OTOG):c.2489_2490insACTGGACACCCA (p.Tyr830Ter) (rs876657656)

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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 RCV000214336 SCV000271253 likely pathogenic Rare genetic deafness 2016-01-03 criteria provided, single submitter clinical testing The p.Tyr830X variant in OTOG has been previously reported by our laboratory in the homozygous state in one individual with mild to moderate hearing loss. This variant has not been identified in large population studies, though the ability of these studies to accurately detect insertions or deletions may be limited. T his variant creates a premature termination codon at position 830, which is pred icted to lead to a truncated or absent protein. Two loss of function variants in the OTOG gene have been reported to segregate with hearing loss in two families (Schraders 2012), and disruption of Otog in mice resulted in deafness supportin g of a loss-of-function mechanism for the disease (Simmler 2000). In summary, al though additional evidence is required to strengthen the gene-disease associatio n for OTOG and hearing loss, the p.Tyr830 variant is likely pathogenic based on its predicted impact on the protein and our currently knowledge of the gene.

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