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Updated: Jun 14, 2025

In Vitro Analysis of E3 Ubiquitin Ligase Function

In Vitro Analysis of E3 Ubiquitin Ligase Function

Published on: May 14, 2021

通过35亿年的组合结合来追踪乌比奎丁信号传输

Alena N Kaminskaya¹, Alena S Evpak¹, Alexey A Belogurov^1,2

¹Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia.

International journal of molecular sciences

|August 29, 2024

概括

无处不在的系统显示了跨甲基动物的保存E2酶,而E3酶同质性随着进化距离的减少而减少. E3适应蛋白可能是状动物进化的关键.

科学领域:

生物化学生化学
进化生物学进化生物学
分子生物学分子生物学

背景情况:

乌比基因化是一种基本的翻译后蛋白质修饰系统,涉及乌比基因激活,转移和结合.
这个系统通过保存蛋白质结构和在各种生命形式中增加结合酶的复杂性而进化.
了解无处不在酶的进化轨迹对于破译细胞调节和生物体发育至关重要.

研究的目的:

研究不同生物体中泛化酶和泛素的多样性和保存情况.
评估E2泛素结合酶和E3泛素结合酶的进化模式.
探索E3适应蛋白在泛化系统进化中的作用,特别是在状动物中.

主要方法:

在各种物种中对ubiquitin,E2酶和E3连接酶的氨基酸序列进行比较分析.
利用分子钟估计来确定进化距离.
检查关键的泛素化酶域和适应蛋白质的同质性与人类正义学家.

主要成果:

甲动物群中的E2无素结合酶具有很高的保存性.
随着进化距离的增加,E3泛素连接酶与人类的同质性降低了.
类和类表现出与人类相似的E3酶同质性,但不是在适应蛋白中,尽管在50亿年前有分歧.

结论:

E2酶超级家族在最后一个共同的超生物祖先中可能以目前的形式存在,并且一直在进行净化选择.
这些发现表明,在无处不在化系统中,潜在的融合进化.
E3适应蛋白可能代表在无处不在化机制中推动弦状动物进化的一个关键组成部分.

关键词:

考古物 (Archaea) 是一种古老的物种.这就是HECT.一个戒指,一个戒指.域结构域结构域结构一个真核生物的真核生物.进化演化演化演化演化演化演化演化一个类型的族群.它们是 prokaryote 类生物.在任何地方都是无处不在的.无处不在的合酶

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