Identification and functional analysis of a novel missense mutation in GJA8, p.Ala69Thr.

ABSTRACT:

Background

To explore the molecular genetic cause of a four-generation autosomal dominant congenital cataract family in China.

Methods

Targeted region sequencing was performed to screen for the potential mutation, and Sanger sequencing was used to confirm the mutation. The homology model was constructed to identify the protein structural change, PolyPhen-2 and Provean were used to predict the mutation impact. Functional and cellular analysis of the wild and mutant GJA8 were performed in DF-1 cells by western blotting, dye uptake assay, immunofluorescence, Annexin V-FITC staining.

Results

A novel heterozygous mutation (c.205G > A; p.Ala69Thr) was identified within GJA8, which cosegregated with congenital cataract phenotype in this family. Bioinformatics analysis showed

SUBMITTER: Li D 

PROVIDER: S-EPMC7678044 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature