Cdc25细胞循环酸酶作为c-mycc的目标
K Galaktionov1, X Chen, D Beach
1Howard Hughes Medical Institute, Cold Spring Harbor Laboratory, New York 11724, USA.
Nature
|August 8, 1996
概括
原型瘤基因c-myc和Max形成了调节细胞生长和死亡的转录因子. 这一因素针对cdc25A基因,该基因对Myc诱导的亡至关重要,强调cdc25A是c-myc中的关键参与者.
科学领域:
- 分子生物学分子生物学
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
背景情况:
- 原型瘤基因c-myc与Max一起形成了一个转录因子.
- 这种Myc/Max复合体调节了参与细胞增殖和亡的基因.
- cdc25A也是一种原瘤基因,在亡中起作用,尤其是在缺乏生长因子的情况下.
研究的目的:
- 研究c-myc与cdc25A基因之间的关系.
- 要确定cdc25A是否是Myc/Max.的直接转录标.
- 为了阐明cdc25A在Myc诱导的亡中的作用.
主要方法:
- 对与cdc25A基因促进体结合的Myc/Max异构体的分析.
- 通过Myc/Max.对cdc25A转录激活的评估.
- 评估cdc25A对Myc诱导的亡的要求.
主要成果:
- Myc/Max异构体与cdc25A基因中的特定元素结合.
- Myc/Max结合导致cdc25A转录的激活.
- 由Myc诱导的亡依赖于cdc25A的存在.
结论:
- cdc25A 是c-myc. 的一个生理相关的转录标.
- Myc/Max复合体直接调节cdc25A的表达.
- cdc25A对于调解Myc驱动的亡是必不可少的.
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Cyclin-dependent kinases, or Cdks, work in concert with cyclins to control cell cycle transitions. M-Cdk, a complex of Cdk1 bound to M cyclin, is a well-known example of this coordinated control that drives the transition from the G2 to the M phase.
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