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首页> 外文期刊>Molecular and Cellular Biology >Active X chromosome DNA is unmethylated at eight CCGG sites clustered in a guanine-plus-cytosine-rich island at the 5' end of the gene for phosphoglycerate kinase.
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Active X chromosome DNA is unmethylated at eight CCGG sites clustered in a guanine-plus-cytosine-rich island at the 5' end of the gene for phosphoglycerate kinase.

机译:活跃的X染色体DNA在聚磷酸甘油酸激酶基因5'端的富含鸟嘌呤+胞嘧啶的岛中的八个CCGG位点未甲基化。

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The 5' control region and first exon for human X-chromosome-linked phosphoglycerate kinase is contained in a G + C-rich island. We measured methylation at all HpaII sites in this 5' region of leukocyte DNA. By use of a blotting procedure that allows analysis of small DNA fragments, we found that the HpaII sites are entirely methylated when from an inactive X chromosome and entirely unmethylated when from an active one. In contrast, methylation of HpaII sites in more downstream regions of the gene is essentially the same in active and inactive X chromosomes.
机译:人X染色体连接的磷酸甘油酸激酶的5'控制区和第一个外显子包含在富含G + C的岛中。我们在白细胞DNA的5'区域中的所有HpaII位点测量了甲基化。通过使用允许分析小的DNA片段的印迹程序,我们发现当HpaII位点来自无活性的X染色体时,它完全被甲基化,而当来自活性染色体时,则完全未被甲基化。相反,在基因的更下游区域中,HpaII位点的甲基化在活跃和不活跃的X染色体中基本相同。

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