相关实验视频
Updated: May 11, 2026

09:41
Reconstitution Of β-catenin Degradation In Xenopus Egg Extract
Published on: June 18, 2014
环素是来自Xenopusus的促进成熟因子的一个组成部分
J Gautier1, J Minshull, M Lohka
1Department of Pharmacology, School of Medicine, University of Colorado, Denver 80262.
Cell
|February 9, 1990
概括
在Xenopus蛋中的成熟促进因子 (MPF) 包括B1和B2环素. 这些环林与p34cdc2一起,在卵细胞成熟和卵子激活过程中驱动细胞周期进展.
科学领域:
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
- 发展生物学 发展生物学
背景情况:
- 成熟促进因子 (MPF) 对于卵细胞的细胞周期进展至关重要.
- 精确的MPF成分一直是调查的对象.
研究的目的:
- 为了确定从Xenopus蛋中高度净化的MPF的成分.
- 阐明B型环林在MPF活动中的作用.
主要方法:
- 使用抗B型环林抗体进行西部涂抹和免疫沉.
- 检测免疫沉物中素H1激酶活性.
- 监测成熟卵细胞和激活卵中的蛋白激酶活性.
主要成果:
- 高净化的MPF含有环林B1和环林B2.
- 免疫沉物显示出组素H1激酶活性,其中环B1和B2作为基质.
- 循环蛋白导向蛋白激酶活性反映了卵细胞成熟和卵子激活期间的p34cdc2激酶活性.
结论:
- B型循环素 (B1和B2) 是Xenopus中MPF的重要组成部分.
- 通过p34cdc2与B型环林的相互作用来调节MPF活性.
相关概念视频
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Positive Regulator Molecules
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M cyclin...
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.
M cyclin...
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M-Cdk Drives Transition Into Mitosis
Checkpoints throughout the cell cycle serve as safeguards and gatekeepers, allowing the cell cycle to progress in favorable conditions and slow or halt it in problematic ones. This regulation is known as the cell cycle control system.
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.
M cyclin...
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.
M cyclin...

