Clinical and molecular genetic analysis for a patient with glycogen storage disease Ⅰa / 中国当代儿科杂志

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the mutation of glucose-6-phosphatase gene (G6PC gene) in a patient with glycogen storage disease Ⅰa.</p><p><b>METHODS</b>PCR was used to amplify all five exons of G6PC gene. The PCR products were directly sequenced to detect the mutations.</p><p><b>RESULTS</b>A heterozygous 743G>A mutation was found in the patient and his mother, resulting in the substitution of glycine (G) by arginine (R) in codon 222(G222R) in the putative membrane-spanning domain in human G6Pase, but not in his father and his sister.</p><p><b>CONCLUSIONS</b>G222R mutation in G6PC gene was first identified in a patient with glycogen storage disease Ⅰa in mainland China.</p>