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DNA高甲基化与肿瘤的研究进展 被引量:5

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摘要 在哺乳动物DNA分子中,DNA甲基化是指甲基(-CH)3在DNA甲基转移酶(DNA methyl-transferases,DNMTs)催化下,共价结合到DNA分子的胞嘧啶(C)碱基的5位碳原子上,形成5-甲基胞嘧啶(5mC)的表观遗传学修饰过程。DNA甲基化发生在DNA复制完成之后,因此不改变DNA序列,是一种可逆的变化[1],是通过影响基因的表达以改变其功能。
出处 《云南医药》 CAS 2011年第5期557-560,共4页 Medicine and Pharmacy of Yunnan
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