Yuqing Xu1, Yeqing Qian1, Weimiao Yao1, Minyue Dong1. 1. Key Laboratory of Reproductive Genetics, Ministry of Education, Department of Reproductive Genetics, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China.
Abstract
OBJECTIVE: To analyze clinical and genetic features of a family affected with Van der Woude syndrome. METHODS: The umbilical cord blood of the proband and the peripheral blood of the parents were used for the whole exon sequencing to find the candidate gene.Peripheral blood of 9 members of the family were collected for Sanger sequencing verification, bioinformatics analysis and genotype-phenotype correlation analysis. RESULTS: The proband was diagnosed with cleft lip and palate by ultrasound. His father and grandmother had hollow lower lip and all other family members did not have the similar phenotype. A missense c.263A>G (p.N88S) mutation was found in exon 4 of IRF6 gene in the proband, his father and his grandmother.The mutation was not found in other family members. CONCLUSIONS: A missense c.263A>G (p.N88S) mutation in IRF6 gene probably underlies the pathogenesis of Van der Woude syndrome in the family and the mutation has been firstly discovered in China.
OBJECTIVE: To analyze clinical and genetic features of a family affected with Van der Woude syndrome. METHODS: The umbilical cord blood of the proband and the peripheral blood of the parents were used for the whole exon sequencing to find the candidate gene.Peripheral blood of 9 members of the family were collected for Sanger sequencing verification, bioinformatics analysis and genotype-phenotype correlation analysis. RESULTS: The proband was diagnosed with cleft lip and palate by ultrasound. His father and grandmother had hollow lower lip and all other family members did not have the similar phenotype. A missense c.263A>G (p.N88S) mutation was found in exon 4 of IRF6 gene in the proband, his father and his grandmother.The mutation was not found in other family members. CONCLUSIONS: A missense c.263A>G (p.N88S) mutation in IRF6 gene probably underlies the pathogenesis of Van der Woude syndrome in the family and the mutation has been firstly discovered in China.
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