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CASE REPORTS
JOURNAL ARTICLE
[Analysis of MAT1A gene mutations in a child affected with simple hypermethioninemia].
Zhonghua Yi Xue Yi Chuan Xue za Zhi = Zhonghua Yixue Yichuanxue Zazhi = Chinese Journal of Medical Genetics 2017 Februrary 11
OBJECTIVE: To detect potential mutations of MAT1A gene in a child suspected with simple hypermethioninemia by MS/MS neonatal screening.
METHODS: Clinical data of the child was collected. Genomic DNA was extracted by a standard method and subjected to targeted sequencing using an Ion AmpliseqTM Inherited Disease Panel. Detected mutations were verified by Sanger sequencing.
RESULTS: The child showed no clinical features except evaluated methionine. A novel compound mutation of the MAT1A gene, i.e., c.345delA and c.529C>T, was identified in the child. His father and mother were found to be heterozygous for the c.345delA mutation and c.529C>T mutation, respectively.
CONCLUSION: The compound mutation c.345delA and c.529C>T of the MAT1A gene probably underlie the disease in the child. The semi-conductor sequencing has provided an important means for the diagnosis of hereditary diseases.
METHODS: Clinical data of the child was collected. Genomic DNA was extracted by a standard method and subjected to targeted sequencing using an Ion AmpliseqTM Inherited Disease Panel. Detected mutations were verified by Sanger sequencing.
RESULTS: The child showed no clinical features except evaluated methionine. A novel compound mutation of the MAT1A gene, i.e., c.345delA and c.529C>T, was identified in the child. His father and mother were found to be heterozygous for the c.345delA mutation and c.529C>T mutation, respectively.
CONCLUSION: The compound mutation c.345delA and c.529C>T of the MAT1A gene probably underlie the disease in the child. The semi-conductor sequencing has provided an important means for the diagnosis of hereditary diseases.
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