Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics · 2022
[Clinical analysis of a child with cardio-facio-cutaneous syndrome due to a de novo variant of MAP2K1 gene].
Клинический случайСтатьяНазвание и аннотация: Перевод в очереди
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Cao Hongyao, Tong Guanglei, Huang Ru, Zhou Taocheng, Zhang Weiwei
Аннотация
OBJECTIVE: To explore the genotype-phenotype correlation of a patient with cardio-facio-cutaneous syndrome (CFCS) due to variant of the MAP2K1 gene.
METHODS: DNA was extracted from peripheral blood samples of the infant and his parents and subjected to whole exome sequencing. Candidate variant was verified by Sanger sequencing.
RESULTS: The patient had typical CFCS facies and developmental delay, and was found to harbor a de novo heterozygous c.389A>G (p.Tyr130Cys) missense variant in exon 3 of the MAP2K1 gene. Based on the American college of Medical Genetics and Genomics guidelines, this variant was classified as likely pathogenic.
CONCLUSION: This patient has differed from previously reported cases by having no cardiac anomaly or seizures but typical facial features and skin abnormalities accompanied by growth retardation, intellectual impairment, and urinary malformation. It has therefore enriched the phenotypic spectrum of CFCS due to variants of the MAP2K1 gene.
METHODS: DNA was extracted from peripheral blood samples of the infant and his parents and subjected to whole exome sequencing. Candidate variant was verified by Sanger sequencing.
RESULTS: The patient had typical CFCS facies and developmental delay, and was found to harbor a de novo heterozygous c.389A>G (p.Tyr130Cys) missense variant in exon 3 of the MAP2K1 gene. Based on the American college of Medical Genetics and Genomics guidelines, this variant was classified as likely pathogenic.
CONCLUSION: This patient has differed from previously reported cases by having no cardiac anomaly or seizures but typical facial features and skin abnormalities accompanied by growth retardation, intellectual impairment, and urinary malformation. It has therefore enriched the phenotypic spectrum of CFCS due to variants of the MAP2K1 gene.