Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics · 2009
[Characteristics of the PAH gene mutation in Chinese patients with phenylketonuria in Xinjiang].
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Yu Wu-zhong, Qiu Dong-hui, Song Fang, Liu Li, Liu Shao-ming, He Xin-jian, Jin Yu-wei, Zhang Yan-ling, Zou Hong-yun, He Jiang, Lei Quan, Liu Xing-wen
Аннотация
OBJECTIVE: To study the characteristics of the PAH gene mutation in patients with phenylketonuria (PKU) in Xinjiang area.
METHODS: The mutations in exons 3, 5, 6, 7, 11 and 12 and the flanking intronic sequence of the PAH gene were detected by PCR/SSCP analysis and direct DNA sequencing in 46 PKU patients.
RESULTS: Twenty different mutations were found in 68/92 alleles (73.9%). The prevalent mutations of R243Q, EX6 96A>G, R111X, Y356X and V399V were similar to that of Northern China populations. The mutations F161S, L255S, P281L, and R413P were significantly different from that in other Chinese populations. It was the second time that E280G and A434D mutations were reported in the world, that L255S, P281L, R261Q, and I65T mutations were found in China. Thirteen different mutations were first found in Chinese Uygur, which showed a distinct ethnic characteristics.
CONCLUSION: The study showed not only a distinct and conservative, but also a crossed and syncretic genetic characteristics in Xinjiang Uygur population. The results suggest that Xinjiang could be an ideal genetic resource repertoire for studying diversity of gene mutations, heterogeneity of PAH gene, human origins and migration.
METHODS: The mutations in exons 3, 5, 6, 7, 11 and 12 and the flanking intronic sequence of the PAH gene were detected by PCR/SSCP analysis and direct DNA sequencing in 46 PKU patients.
RESULTS: Twenty different mutations were found in 68/92 alleles (73.9%). The prevalent mutations of R243Q, EX6 96A>G, R111X, Y356X and V399V were similar to that of Northern China populations. The mutations F161S, L255S, P281L, and R413P were significantly different from that in other Chinese populations. It was the second time that E280G and A434D mutations were reported in the world, that L255S, P281L, R261Q, and I65T mutations were found in China. Thirteen different mutations were first found in Chinese Uygur, which showed a distinct ethnic characteristics.
CONCLUSION: The study showed not only a distinct and conservative, but also a crossed and syncretic genetic characteristics in Xinjiang Uygur population. The results suggest that Xinjiang could be an ideal genetic resource repertoire for studying diversity of gene mutations, heterogeneity of PAH gene, human origins and migration.