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The nucleolus from a liquid droplet perspective
The Journal of Biochemistry ( IF 2.7 ) Pub Date : 2021-08-04 , DOI: 10.1093/jb/mvab090
Mitsuhiro Yoneda 1, 2 , Takeya Nakagawa 1, 2 , Naoko Hattori 1, 2 , Takashi Ito 1, 2
Affiliation  

The nucleolus is a membrane-less organelle sequestered from the nucleus by liquid droplet formation through a liquid–liquid phase separation (LLPS). It plays important roles in cell homoeostasis through its internal thermodynamic changes. Reversible nucleolar transitions between coalescence and dispersion are dependent on the concentrations, conformations and interactions of its molecular liquid droplet-forming components, including DNA, RNA and protein. The liquid droplet-like properties of the nucleolus enable its diverse dynamic roles. The liquid droplet formation mechanism, by which the nucleolus is sequestered from the nucleoplasm despite the absence of a membrane, explains a number of complex nucleolar functions.

中文翻译:

从液滴角度看核仁

核仁是一种无膜细胞器,通过液-液相分离 (LLPS) 形成液滴,与细胞核隔离。它通过其内部热力学变化在细胞稳态中发挥重要作用。聚结和分散之间的可逆核仁转变取决于其分子液滴形成成分(包括 DNA、RNA 和蛋白质)的浓度、构象和相互作用。核仁的液滴状特性使其具有多种动态作用。尽管没有膜,但核仁与核质隔离的液滴形成机制解释了许多复杂的核仁功能。
更新日期:2021-08-04
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