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  • Title: Novel de novo nonsense mutation of MECP2 in a patient with Rett syndrome.
    Author: Kim SJ, Cook EH.
    Journal: Hum Mutat; 2000 Apr; 15(4):382-3. PubMed ID: 10737989.
    Abstract:
    Because of the recent identification of several mutations of methyl-CpG-binding protein 2 (MECP2) in patients with Rett syndrome (RTT), a patient with suspected RTT from an autism clinic was screened for mutations. She was found to have a novel heterozygous nonsense mutation, 129C>T (Q19X), which leads to the most severely truncated MECP2 protein reported to date. Sequencing of parental DNA revealed the mutation was de novo. The patient was not affected with microcephaly or hyperventilation, but had other features of Rett syndrome including severe mental retardation and symptoms of autistic disorder. Moderately skewed X-chromosome inactivation (XCI) may have contributed to her relatively mild phenotype.
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