相关实验视频
Updated: Jun 26, 2025

Induction and Diagnosis of Tumors in Drosophila Imaginal Disc Epithelia
Published on: July 25, 2017
CDK8模块子单元对Drosophila细胞生长和增殖的明显影响
CDK8激酶模块 (CKM) 子单元在转录中具有不同的作用. Med12-Med13比CDK8-CycC更能影响核糖体生物发生和生长,而CDK8-CycC则影响细胞循环的进展.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 调解者复合体对于RNA聚合酶II转录至关重要.
- CDK8激酶模块 (CKM) 是Mediator的一个子复合体,包括CDK8,CycC,Med12和Med13.
- 来自CKM子单元突变的独特表型表明非冗余的功能.
研究的目的:
- 调查CKM子单元在体内的不同作用.
- 阐明不同CKM突变表型背后的机制.
- 确定CKM子单位稳定性的相互依赖性.
主要方法:
- 利用Drosophila作为一个模型生物.
- 对CKM子单位进行基因枯竭实验.
- 分析了E2F1基因表达,核糖体蛋白基因和纤维激素的影响.
- 评估细胞生长和增殖.
主要成果:
- 减少CDK8-CycC可增强E2F1基因表达和细胞循环的进展.
- 缺少Med12-Med13会损害核糖体蛋白基因表达和纤维激素,减少核糖体生物发生和生长.
- Med12和Med13稳定了CDK8和CycC; Med12和Med13表现出相互的稳定性.
- CycC的稳定性取决于所有其他CKM子单元.
结论:
- CKM子单位表现出不同的*in vivo*角色.
- 干扰Med12-Med13对核糖体生物发生和细胞生长的影响比CDK8-CycC损失更大.
- 结果澄清了CKM突变在细胞过程中的差异后果.
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13:59Studying Mitotic Checkpoint by Illustrating Dynamic Kinetochore Protein Behavior and Chromosome Motion in Living Drosophila Syncytial Embryos
Published on: June 14, 2012
10:31The Drosophila Imaginal Disc Tumor Model: Visualization and Quantification of Gene Expression and Tumor Invasiveness Using Genetic Mosaics
Published on: October 6, 2016
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