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Analysis of disease-causing gene mutation in three Chinese families with congenital inherited cataract / 中华医学遗传学杂志
Chinese Journal of Medical Genetics ; (6): 165-168, 2018.
Artículo en Chino | WPRIM | ID: wpr-687986
ABSTRACT
<p><b>OBJECTIVE</b>To identify the disease-causing gene mutations in three Chinese pedigrees affected with congenital inherited cataract, in ordre to provide genetic counseling and prenatal diagnosis.</p><p><b>METHODS</b>Using exons combined target region capture sequencing chip to screen the candidate disease-causing mutations, Sanger sequencing was used to confirm the disease-causing mutations.</p><p><b>RESULTS</b>Family 1 was polymorphic cataract, family 2 was cerulean cataract, family 3 was coralliform cataract. The inheritance mode of the three pedigrees consisted with autosomal dominant inheritance. In family 1, a nonsense mutation of CRYβB2 gene c.463C>T in exon 6 result in a p.Q155X amino acid change. In family 2, a missense mutation of of CRYGD gene c.43C>T in exon 2 result in a p.R14C amino acid change. In family 3, a missense mutation of CRYGD gene c.70C>A in exon 2 result in a p.P23T amino aid change. No above-mentioned mutations were found in normal individuals.</p><p><b>CONCLUSION</b>The nonsense mutation c.463C>T (p.Q155X) of CRYβB2 gene, the heterozygous mutations c.43C>T(p.R14C) of CRYGD gene and c.70C>A( p.P23T) of CRYGD gene was the disease-causing gene mutation in family 1, 2 and 3 respectively, our results provid genetic counseling and prenatal diagnosis for these three families.</p>
Asunto(s)
Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Linaje / Diagnóstico Prenatal / Catarata / Cadena B de beta-Cristalina / Gamma-Cristalinas / Asesoramiento Genético / Genética / Mutación Tipo de estudio: Estudio diagnóstico Límite: Humanos Idioma: Chino Revista: Chinese Journal of Medical Genetics Año: 2018 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Linaje / Diagnóstico Prenatal / Catarata / Cadena B de beta-Cristalina / Gamma-Cristalinas / Asesoramiento Genético / Genética / Mutación Tipo de estudio: Estudio diagnóstico Límite: Humanos Idioma: Chino Revista: Chinese Journal of Medical Genetics Año: 2018 Tipo del documento: Artículo