ClinVar Miner

Submissions for variant NM_206933.4(USH2A):c.9699del (p.His3234fs)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
King Laboratory, University of Washington RCV003155553 SCV003844117 pathogenic Usher syndrome type 2A 2023-02-28 criteria provided, single submitter research This variant occurred in compound heterozygosity with a known, likely pathogenic USH2A missense variant in two siblings with bilateral sensorineural hearing loss of onset <18 years, in a study of pediatric hearing loss conducted by the King Laboratory (Carlson RJ et al. JAMA-OtoHNS 2023). At the time of recruitment, neither sibling had known visual impairment (age 12y and 11y). These patients’ family has no other history of hearing loss. This variant is a single base pair deletion that leads to a frameshift causing the inclusion of 66 incorrect amino acids and premature stop at position 3300 of 5203 in the USH2A protein. As of January 2023, this variant has not been reported to ClinVar and is not found on gnomAD. In summary, we conclude that this variant is likely pathogenic. Based on the prediction that this variant leads to a truncated protein and goodness of fit of genotype to phenotype, we conclude that this variant is pathogenic.

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