Department of Biology, Emory University, 1510 Clifton Road NE, Atlanta, GA 30322, USA.
BMC Biol. 2010 Jul 30;8:104. doi: 10.1186/1741-7007-8-104.
The nuclear factor CTCF has been shown to be necessary for the maintenance of genetic imprinting at the mammalian H19/Igf2 locus. MacDonald and colleagues now report in BMC Biology that the mechanisms responsible for maintaining the imprinted state in Drosophila may be evolutionarily conserved and that CTCF may also play a critical role in this process. See research article http://www.biomedcentral.com/1741-7007/8/105.
核因子 CTCF 已被证明是维持哺乳动物 H19/Igf2 基因座遗传印记所必需的。MacDonald 及其同事现在在 BMC 生物学杂志上报道称,维持果蝇印迹状态的机制可能在进化上是保守的,而且 CTCF 也可能在这个过程中发挥关键作用。详见研究文章,网址:http://www.biomedcentral.com/1741-7007/8/105。