相关实验视频
Updated: Jul 10, 2025

11:14
Modeling Paracrine Noncanonical Wnt Signaling In Vitro
Published on: December 10, 2021
1.6K
在Wnt-frizzled复杂结构动态中,Wnt棕烯酸环保护二硫化物键的作用:从分子动态模拟中的洞察力
N Dehghanbanadaki1, H Mehralitabar2, R Sotoudeh1
1Department of Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, PO Box: 14115-154, Tehran, Iran.
Computers in biology and medicine
|November 18, 2023
概括
与色受体的Wnt蛋白相互作用由棕烯基基和关键的二硫化键稳定. 硫化物183-190是Wnt-FZ复合物的形成和稳定性的关键,提供了潜在的药物标.
科学领域:
- 分子生物学分子生物学
- 生物化学 生物化学
- 结构生物学 结构生物学
背景情况:
- Wnt蛋白质是脂质修饰的信号分子,调节发育和疾病.
- 在Wnt结构中,有一个掌式的指,并与色 (FZ) 受体相互作用.
- 在Wnt-FZ相互作用中,Wnt棕化和二硫化键的作用尚未完全理解.
研究的目的:
- 在Wnt-FZ相互作用中研究Wnt指棕基和保存二硫化物 (183-190,181-195) 的结构动力学和调节作用.
- 通过使用定向分子动力学来探索这些二硫化物在Wnt-FZ复合体形成中的重要性.
主要方法:
- 经典分子动力学模拟 (共800n).
- 引导分子动力学实验,然后进行放松.
- 动态交叉相关图 (DCCM) 分析.
主要成果:
- 棕烯基组显著稳定了Wnt-FZ相互作用;二硫化物调节了这种效应.
- 硫化物183-190调节了Wnt指的动态,结合和二次结构.
- 二硫化物183-190对于建立远程盐桥和适当的棕乙烯定位对于Wnt-FZ复合物形成至关重要.
结论:
- 处于指位置的二硫化物对于Wnt-FZ复合体的形成,结构动力学和稳定性至关重要.
- 二硫化物183-190在Wnt-FZ相互作用中起着重要作用.
- 双硫化物183-190是针对Wnt信号通路的治疗策略的一个有希望的目标.
更多相关视频
相关概念视频
Non-Canonical Wnt Signaling Pathways
7.3K
Wnt is a zygotic effect gene that is expressed during very early embryonic development. It regulates various processes in animals starting from early development through the adult stage, such as organogenesis in the embryo and maintenance of neuronal and blood stem cells. Wnt proteins can induce a wide variety of intracellular pathways depending upon the specific abilities of different Wnt ligands to form a complex with shared and cognate receptors in the presence of different co-receptors. The...
7.3K
Canonical Wnt Signaling Pathway
8.8K
The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which...
8.8K
Protein Folding
118.3K
Overview
118.3K
Generation of Straight or Branched Actin Filaments
2.9K
The straight or branched structure formation of actin filaments is controlled by nucleating proteins such as the formins and Arp2/3 complex. Formin-mediated assembly results in straight filaments, whereas Arp2/3 protein complex-mediated assembly results in branched actin filaments.
Arp2/3 Complex
Arp2/3 complex is a seven-subunit complex consisting of two proteins similar to actin- Arp2 and Arp3, and five other subunits that help keep Arp2 and Arp3 inactive. When required, the complex is...
Arp2/3 Complex
Arp2/3 complex is a seven-subunit complex consisting of two proteins similar to actin- Arp2 and Arp3, and five other subunits that help keep Arp2 and Arp3 inactive. When required, the complex is...
2.9K
Mechanism of Lamellipodia Formation
2.6K
Cells migrating in response to external stimuli form lamellipodia, which are thin membrane protrusions supported by a mesh of linked, branched, or unbranched actin filaments. These actin filaments interact with myosin motor proteins, creating the dynamic actomyosin complex within the cytoskeleton. Contractility, or the ability to generate contractile stress, is inherent to the actomyosin complex. It helps cells detect the stiffness of the surrounding ECM and exert contractile force for...
2.6K
Protein and Protein Structure
79.6K
Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
A protein's shape is critical to its function. For example, an enzyme...
A protein's shape is critical to its function. For example, an enzyme...
79.6K

