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Targeted Next-Generation Sequencing Identified Novel Compound Heterozygous Variants in the PTPRQ Gene Causing Autosomal Recessive Hearing Loss in a Chinese Family.

ABSTRACT: Hearing loss is among the most common congenital sensory impairments. Genetic causes account for more than 50% of the cases of congenital hearing loss. The PTPRQ gene, encoding protein tyrosine phosphatase receptor Q, plays an important role in maintaining the stereocilia structure and function of hair cells. Mutations in the PTPRQ gene have been reported to cause hereditary sensorineural hearing loss. By using next-generation sequencing and Sanger sequencing, we identified a novel compound heterozygous mutation (c.997 G > A and c.6603-3 T > G) of the PTPRQ gene in a Chinese consanguineous family. This is the first report linking these two mutations to recessive hereditary sensorineural hearing loss. These findings contribute to the understanding of the relationship between genotype and hearing phenotype of PTPRQ-related hearing loss, which may be helpful to clinical management and genetic counseling.

SUBMITTER: Jin Y 

PROVIDER: S-EPMC9310072 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature

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Targeted Next-Generation Sequencing Identified Novel Compound Heterozygous Variants in the <i>PTPRQ</i> Gene Causing Autosomal Recessive Hearing Loss in a Chinese Family.

Jin Yuan Y   Liu Xiao-Zhou XZ   Xie Le L   Xie Wen W   Chen Sen S   Sun Yu Y  

Frontiers in genetics 20220708

Hearing loss is among the most common congenital sensory impairments. Genetic causes account for more than 50% of the cases of congenital hearing loss. The <i>PTPRQ</i> gene, encoding protein tyrosine phosphatase receptor Q, plays an important role in maintaining the stereocilia structure and function of hair cells. Mutations in the <i>PTPRQ</i> gene have been reported to cause hereditary sensorineural hearing loss. By using next-generation sequencing and Sanger sequencing, we identified a novel  ...[more]

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