相关实验视频
Updated: May 27, 2025

12:04
Microfluidic Preparation of Liquid Crystalline Elastomer Actuators
Published on: May 20, 2018
8.9K
液体冷凝:一个新的障碍,循环挤出?
Arseniy V Selivanovskiy1,2, Maria N Molodova1,3, Ekaterina E Khrameeva3
1Institute of Gene Biology, Russian Academy of Sciences, 119334, Moscow, Russia.
Cellular and molecular life sciences : CMLS
|February 20, 2025
概括
由液-液相分离 (LLPS) 形成的宏分子凝聚物可能阻断循环挤出 (LE),这是增强剂-促进剂相互作用和基因调节的关键过程.
科学领域:
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
- 生物化学 生物化学
背景情况:
- 液-液相分离 (LLPS) 驱动着在染色质上形成宏分子凝聚物.
- 这些凝结物集中用于转录调节和DNA修复的效应因子.
- 增强剂,超级增强剂和促进剂是凝结体组装的关键平台.
研究的目的:
- 调查凝结物在调节增强剂-促进剂 (EP) 相互作用中的作用.
- 提出一种新的机制,在这种机制中,凝结物作为循环挤出 (LE) 的障碍物.
主要方法:
- 该研究整合了关于LLPS,染色体组织和基因调节的现有证据.
- 它提出了一个理论模型,基于目前对凝结函数和LE的理解.
主要成果:
- 增强剂-促进剂相互作用可能来自凝结体接触和融合.
- 建议冷凝物作为阻碍循环挤出 (LE) 的障碍物,由SMC复合体介导.
- 这种屏障功能可能会影响调节性基因组元素的空间布局.
结论:
- 通过LLPS形成的冷凝物可以通过调节LE来调节核过程.
- 这种机制为染色体结构和基因调节的联系提供了新的视角.
- 需要进一步的实验验证,以确认冷凝物作为LE屏障的作用.
相关概念视频
Colloidal precipitates
484
The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
484
Distillation: Vapor–Liquid Equilibria
2.6K
Distillation is a separation technique that takes advantage of the boiling point properties of disparate elements in a mixture. To perform distillation, we begin by heating a miscible mixture of two liquids with a significant difference in boiling points (at least 20°C). As the solution heats up and reaches the bubble point of the more volatile component, some molecules of the more volatile component transition into the gas phase and travel upward into the condenser, which is a glass tube...
2.6K

