相关实验视频
Updated: May 5, 2026
07:43
Assaying Proteasomal Degradation in a Cell-free System in Plants
Published on: March 27, 2014
13.9K
向蛋白解在Agrobacterium的植物遗传转换中的参与
Tzvi Tzfira1, Manjusha Vaidya, Vitaly Citovsky
1Department of Biochemistry and Cell Biology, State University of New York, Stony Brook, New York 11794-5215, USA. ttzfira@ms.cc.sunysb.edu
Nature
|September 3, 2004
概括
农细菌的VirF蛋白针对VIP1和VirE2进行降解,这是植物遗传转换的关键步骤. 这种蛋白质分解对于T-DNA脱涂和整合到宿主基因组至关重要.
科学领域:
- 分子生物学分子生物学
- 植物科学 植物科学
- 微生物学 微生物学
背景情况:
- 农细菌介导的植物转化涉及跨王国的DNA转移.
- 病毒性 (Vir) 蛋白和转移 (T) -DNA被输入植物细胞.
- 部分了解T-DNA核导入和集成机制,但未涂层因素仍然未知.
研究的目的:
- 为了确定涉及T-DNA脱涂在Agrobacterium介导的转化过程中的因素.
- 为了研究病毒性蛋白 VirF 在植物宿主细胞中的功能.
主要方法:
- 基于酵母的蛋白质不稳定性测试.
- 在植物中验证蛋白质相互作用和降解.
- 使用蛋白质体抑制剂来评估转化途径.
主要成果:
- 病毒性蛋白 VirF 针对 VIP1 和 VirE2 进行蛋白质分解.
- 病毒F定位在植物核中,并与VIP1相互作用.
- 在酵母和植物细胞中证实了VirF介导的VIP1和VirE2的不稳定.
- 蛋白质体降解对于转化过程中的T-DNA表达是必不可少的.
结论:
- 通过Skp1-Cdc53-cullin-F-box复合体,VirF调解了VIP1和VirE2.2的向蛋白解.
- 这种降解过程对于T-DNA脱涂和随后的整合至关重要.
- 这些发现揭示了一种新的机制,调节了Agrobacterium介导的基因转换.
更多相关视频
08:31Agrobacterium tumefaciens and Agrobacterium rhizogenes-Mediated Transformation of Potato and the Promoter Activity of a Suberin Gene by GUS Staining
Published on: March 29, 2019
29.2K
07:00CcCIPK14 Gene Function Analysis to Illuminate the Efficient Root Transgenic System
Published on: September 23, 2021
1.1K
相关概念视频
00:53Transgenic Organisms
29.3K
Overview
29.3K
02:50Transgenic Plants
7.0K
Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
7.0K
01:26Transformation
1.3K
Microbial communities are dynamic environments where cell lysis releases free DNA into the surroundings. Other cells can take up this extracellular DNA through a process known as transformation.When a cell incorporates this foreign DNA into its genome, resulting in genetic modification, the process is known as transformation. Cells capable of this process are termed competent. Competence can be natural, as observed in certain bacteria and archaea, or artificially induced in the...
1.3K