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Phenylketonuria mutations in Northern China by Fang Song; Yu-jin Qu; Ting Zhang; Yu-wei Jin; Hong Wang; Xiao-ying Zheng is a Medicine article available to read on EtoBox.

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Mutation spectrum of phenylalanine hydroxylase (PAH) gene in patients with phenylketonuria (PKU) in Northern China is described with a discussion on genotype-phenotype correlation. By using PCR/SSCP and DNA sequencing, all exons of PAH gene in the 185 unrelated patients with PKU from Northern China were studied. A total of 70 different mutations, including 42 missense, 12 splice, 7 nonsense, 5 deletion, 3 insertion, and 1 silence/splice mutations, were detected in 349/370 mutant alleles (94.3%). Deletion, insertion, and frameshift mutations were found for the first time in China PKU patients. The mutations R243Q, EX6-96A>G, R111X, Y356X, and R413P were the prevalent mutations with relative frequencies of 22.2, 11.1, 8.7, 6.5, and 6.5%, respectively. Fifteen novel mutations were identified in this study: I38fsX19, IVS4+3G>C, Y154H, R157K, R157I, T200fsX6, Q267H, Q267E, F302fsX39, G346R, S349A, L367L, R400K, IVS12+4A>G, and IVS12+6T>A. Each of them occurs at very low frequency (0.3-1.1%). The mutation spectrum of PKU in Chinese is similar to other Asian populations but significantly different from European populations. Altogether, 70 different mutations are found in 109 genotypes dis

Who reads Phenylketonuria mutations in Northern China?

Author

Fang Song; Yu-jin Qu; Ting Zhang; Yu-wei Jin; Hong Wang; Xiao-ying Zheng

Publisher

Elsevier BV

Published

2005

Language

EN

Field

Medicine (Health Sciences)