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生物信息学分析阿克相互作用体:核和细胞质阿克结合蛋白的特征

Yakov I Mokin¹, Olga I Povarova¹, Iuliia A Antifeeva¹

¹Laboratory of Structural Dynamics, Stability and Folding of Proteins, Institute of Cytology, Russian Academy of Sciences, St. Petersburg, 194064, Russian Federation.

The protein journal

|June 2, 2024

概括

氨酸是真核细胞中至关重要的蛋白质,与细胞质和细胞核中的许多蛋白质相互作用. 这项研究揭示了不同的细胞质和核活性蛋白结合蛋白涉及到各种细胞功能.

科学领域:

细胞生物学细胞生物学
分子生物学分子生物学
生物化学生物化学

背景情况:

阿克是一种无处不在的真核蛋白质,通过聚合成为F-actin,对细胞质功能至关重要.
球状动蛋白 (G-actin) 也在细胞核中起着关键的作用.
乙与大量蛋白质相互作用,形成一个复杂的相互作用体.

研究的目的:

为了分析actin互动组,并区分细胞质和核actin结合蛋白.
调查这些独特的活性蛋白结合蛋白池的功能作用.
探索动蛋白结合蛋白的结构特征,特别是内在无序的蛋白质及其与没有膜的有机细胞的关联.

主要方法:

生物信息学对actin互动原子的分析.
生物信息学分析了活性蛋白结合蛋白的结构.

主要成果:

动因互动组包括仅与细胞质动因,仅与核动因或两者结合的蛋白质.
细胞质活性蛋白主要参与细胞骨动力学,而核对应物则调节关键的核过程,如转录和DNA修复.
很大一部分动氨酸结合蛋白质本质上是无序的,形成没有膜的有机体,这些结构的细胞质驱动因素比核驱动因素更为普遍.

结论:

乙的功能多功能性延伸到细胞质和细胞核中的不同作用,通过特定的蛋白质相互作用进行介导.
内在无序的蛋白质是作用素结合蛋白质复合物的关键参与者,并且在两个细胞区内形成没有膜的有机体.
尽管核中存在较高的内在无序的活性蛋白结合蛋白,但细胞质因子更显著地驱动了无膜有机体的形成.

关键词:

在Actin中的Actin是Actin.动氨酸结合蛋白质的蛋白质本质上有障碍的蛋白质.液体-液体相分离器液体相分离器蛋白质与蛋白质之间的相互作用

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