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  • Title: [Molecular diagnosis of OTC gene mutation in a Chinese family with ornithine transcarbamylase deficiency].
    Author: Meng LL, Jiang T, Qin L, Ma DY, Chen YL, Han SP, Yu ZB, Guo XR, Hu P, Xu ZF.
    Journal: Zhonghua Yi Xue Yi Chuan Xue Za Zhi; 2013 Apr; 30(2):195-8. PubMed ID: 23568734.
    Abstract:
    OBJECTIVE: To detect potential mutations of OTC gene in a male infant affected with ornithine transcarbamylase deficiency. METHODS: Genomic DNA were isolated from peripheral blood samples of family members and 100 healthy individuals. Potential mutations of the 10 exons of OTC gene were screened with PCR and Sanger sequencing. RESULTS: A homozygous missense mutation c.917G>C in exon 9, which results in p.R306T, was identified in the infant. Sequencing of the mother and two female members of the family indicated a heterozygous status for the same mutation. The same mutation was not found in other members of the family and 100 healthy controls. CONCLUSION: A missense mutation c.917G>C in the OTC gene is responsible for the pathogenesis of the disease. Identification of the mutation can facilitate prenatal diagnosis and genetic counseling for the family.
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