Identification of a novel missence mutation in FGFR3 gene in an Iranian family with LADD syndrome by Next-Generation Sequencing

Lacrimo-auriculo-dento-digital syndrome (LADD) is a multiple congenital anomaly and a genetically heterogeneous disorder. The aim of this study was to identify the pathogenic gene in an Iranian family with LADD syndrome and review the literature on reported mutations that involved in pathogenesis of LADD syndrome. One novel variant, c.1882 G>A, in fibroblast growth factor receptor 3 (FGFR3) was identified by next generation sequencing and Sanger sequencing. The heterozygous FGFR3 c.1882 G>A variant results in substitution of aspartic acid with asparagine at amino acid 628 (p.D628N) and co-segregated with the phenotype in the LADD family.

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