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首页> 外文期刊>Molecular and Cellular Biology >A DNA signal from the Thy-1 gene defines de novo methylation patterns in embryonic stem cells.
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A DNA signal from the Thy-1 gene defines de novo methylation patterns in embryonic stem cells.

机译:来自Thy-1基因的DNA信号定义了胚胎干细胞中的从头甲基化模式。

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Although DNA can be extensively methylated de novo when introduced into pluripotent cells, the CpG island in the Thy-1 gene does not become methylated either in the mouse embryo or in embryonic stem cells. A 214-base-pair region near the promoter of the Thy-1 gene protects itself as well as heterologous DNA sequences from de novo methylation. We propose that this nucleotide sequence is representative of a class of important signals that limits de novo methylation in the embryo and establishes the pattern of hypomethylated CpG dinucleotides found in somatic tissues.
机译:尽管将DNA引入多能细胞后可以被彻底地甲基化,但是Thy-1基因中的CpG岛在小鼠胚胎或胚胎干细胞中都不会甲基化。 Thy-1基因启动子附近的214个碱基对区域可保护自己以及异源DNA序列免受从头甲基化的影响。我们提出,该核苷酸序列代表一类重要信号,该信号限制了胚胎中的从头甲基化,并建立了在体细胞组织中发现的低甲基化CpG二核苷酸的模式。

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