Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics · 2019
[Clinical and genetic diagnosis of a pedigree affected with autosomal recessive Alport syndrome].
СтатьяНазвание и аннотация: Перевод в очереди
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Ge Lili, Chen Chongfen, Liu Lei, Song Yinsen
Аннотация
OBJECTIVE: To explore the genetic basis of a child with chronic kidney disease featuring renal shrinkage and creatinine increase.
METHODS: Peripheral venous blood samples were taken from the child, his brother and two parents and subjected to whole exome sequencing. Suspected mutations were verified by Sanger sequencing. Bioinformatic analysis was carried out to predict the influence of mutations on the structure and function of the protein product.
RESULTS: High-throughput and Sanger sequencing revealed that the child has carried compound heterozygous mutations of the COL4A4 gene, namely c.4550T>G in exon 47 (inherited from his mother) and c.199C>T in exon 5 (inherited from his father). Neither mutation was reported previously. Bioinformatic analysis showed that both mutations have located in highly conserved regions. The same mutations were not found in his brother.
CONCLUSION: The compound heterozygous c.4550T>G and c.199C>T mutations probably underlie the disease in this child. The findings have enriched the mutation spectrum of the COL4A4 gene.
METHODS: Peripheral venous blood samples were taken from the child, his brother and two parents and subjected to whole exome sequencing. Suspected mutations were verified by Sanger sequencing. Bioinformatic analysis was carried out to predict the influence of mutations on the structure and function of the protein product.
RESULTS: High-throughput and Sanger sequencing revealed that the child has carried compound heterozygous mutations of the COL4A4 gene, namely c.4550T>G in exon 47 (inherited from his mother) and c.199C>T in exon 5 (inherited from his father). Neither mutation was reported previously. Bioinformatic analysis showed that both mutations have located in highly conserved regions. The same mutations were not found in his brother.
CONCLUSION: The compound heterozygous c.4550T>G and c.199C>T mutations probably underlie the disease in this child. The findings have enriched the mutation spectrum of the COL4A4 gene.