共 59 条
Dynamics of the cell cycle: Checkpoints, sizers, and timers
被引:93
作者:

Qu, ZL
论文数: 0 引用数: 0
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机构: Univ Calif Los Angeles, Dept Med Cardiol, Cardiovasc Res Lab, David Geffen Sch Med, Los Angeles, CA 90095 USA

MacLellan, WR
论文数: 0 引用数: 0
h-index: 0
机构: Univ Calif Los Angeles, Dept Med Cardiol, Cardiovasc Res Lab, David Geffen Sch Med, Los Angeles, CA 90095 USA

Weiss, JN
论文数: 0 引用数: 0
h-index: 0
机构: Univ Calif Los Angeles, Dept Med Cardiol, Cardiovasc Res Lab, David Geffen Sch Med, Los Angeles, CA 90095 USA
机构:
[1] Univ Calif Los Angeles, Dept Med Cardiol, Cardiovasc Res Lab, David Geffen Sch Med, Los Angeles, CA 90095 USA
[2] Univ Calif Los Angeles, Dept Physiol, Cardiovasc Res Lab, David Geffen Sch Med, Los Angeles, CA 90095 USA
关键词:
D O I:
10.1016/S0006-3495(03)74778-X
中图分类号:
Q6 [生物物理学];
学科分类号:
071011 ;
摘要:
We have developed a generic mathematical model of a cell cycle signaling network in higher eukaryotes that can be used to simulate both the G1/S and G2/M transitions. In our model, the positive feedback facilitated by CDC25 and wee1 causes bistability in cyclin-dependent kinase activity, whereas the negative feedback facilitated by SKP2 or anaphase-promoting-complex turns this bistable behavior into limit cycle behavior. The cell cycle checkpoint is a Hopf bifurcation point. These behaviors are coordinated by growth and division to maintain normal cell cycle and size homeostasis. This model successfully reproduces sizer, timer, and the restriction point features of the eukaryotic cell cycle, in addition to other experimental findings.
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页码:3600 / 3611
页数:12
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