ArticleEye (London, England)2024
A novel variant in the keratin 12 gene in a four-generation Chinese family with high myopia.
Article in Eye (London, England), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundHigh myopia is a major cause of visual impairment, and genetic factors play crucial roles in the pathogenesis. We performed this study to identify candidate genes for the development of high myopia in a four-generation Chinese family with myopia.
methodsAll family members with myopia and 100 healthy participants were included in this study. Data were obtained on demographics, disease history, and ocular examination results. We performed whole exome sequencing of the genomic DNA and Sanger sequencing to verify the variants. Functional analyses of the variant were performed using software programmes.
resultsNine of thirteen family members were found to have high myopia, amongst which two members were also diagnosed keratoconus. A missense variant in the keratin 12 gene (KRT12, p.Val410Gly) was detected in all high myopia cases but not in other family members without high myopia or the controls. The variant was predicted to be benign by online software programmes. However, modelling of the three-dimensional structure of the protein clearly revealed conformational changes caused by the mutation.
conclusionsA missense mutation in the KRT12 gene was identified in this Chinese family, which may be associated with the pathogenesis of high myopia.
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