The journal of gene medicine · 2020
A novel UBE2A mutation in a Chinese family with X-linked intellectual disability.
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Jia Weimin, Hu Qi, Wu Yanling, Wang Jiarui, Liu Zhenxing, Zhang Xianqin
Аннотация
BACKGROUND: X-linked intellectual disability type Nascimento, also known as UBE2A deficiency syndrome, is an intellectual disability syndrome characterized by moderate to severe intellectual disability, dysmorphic facial features, speech impairment, genital anomalies and skin abnormalities. The syndrome is caused by mutations of the UBE2A gene, or larger deletions of Xq24 encompassing UBE2A.
METHODS: We report the case of a 19-year-old male with UBE2A deficiency syndrome, who showed severe intellectual disability and seizures. Whole exome sequencing and Sanger sequencing were used to identify the disease-causing mutations in this patient.
RESULTS: A novel hemizygous missense UBE2A mutation (c.TAT245TGT, p.Tyr82Cys) was identified in our patient. The heterozygous missense UBE2A mutation was identified in his mother, although not in his father or sister.
CONCLUSIONS: The present study identified a novel UBE2A mutation in a patient with severe intellectual disability and seizures. Our findings expand the mutational spectrum of the UBE2A gene.
METHODS: We report the case of a 19-year-old male with UBE2A deficiency syndrome, who showed severe intellectual disability and seizures. Whole exome sequencing and Sanger sequencing were used to identify the disease-causing mutations in this patient.
RESULTS: A novel hemizygous missense UBE2A mutation (c.TAT245TGT, p.Tyr82Cys) was identified in our patient. The heterozygous missense UBE2A mutation was identified in his mother, although not in his father or sister.
CONCLUSIONS: The present study identified a novel UBE2A mutation in a patient with severe intellectual disability and seizures. Our findings expand the mutational spectrum of the UBE2A gene.