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Autosomal Recessive Retinitis Pigmentosa Associated with Three Novel REEP6 Variants in Chinese Population.

ABSTRACT: Retinitis pigmentosa 77 is caused by mutations of REEP6 (MIM: 609346), which encodes a protein for the development of photoreceptors. Our study was to identify disease-causing variants in three Chinese families using targeted next-generation sequencing (NGS). Multiple lines of computational predictions combined with in vitro cellular experiments were applied to evaluate the pathogenicity of the newly found variants. Three novel variants in REEP6, including one missense variant, c.268G>C, one frameshift variant, c.468delC, and one splicing variant, c.598+1G>C, were found, while c.268G>C was detected in all probands. The three variants were classified as likely pathogenic by the American College of Medical Genetics and Genomics (ACMG). REEP6 variant proteins c.268G>C and c.468delC in cultured cells destabilized the REEP6 protein and induced intracellular inclusions. Our data suggested that REEP6 c.268G>C may be a recurrent causative variant in Chinese autosomal recessive retinitis pigmentosa patients.

SUBMITTER: Zhang L 

PROVIDER: S-EPMC8068040 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature

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Autosomal Recessive Retinitis Pigmentosa Associated with Three Novel <i>REEP6</i> Variants in Chinese Population.

Zhang Lujia L   Li Ya Y   Qin Litao L   Wu Yu Y   Lei Bo B  

Genes 20210407 4

Retinitis pigmentosa 77 is caused by mutations of <i>REEP6</i> (MIM: 609346), which encodes a protein for the development of photoreceptors. Our study was to identify disease-causing variants in three Chinese families using targeted next-generation sequencing (NGS). Multiple lines of computational predictions combined with in vitro cellular experiments were applied to evaluate the pathogenicity of the newly found variants. Three novel variants in <i>REEP6</i>, including one missense variant, c.2  ...[more]

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