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相关概念视频

Ligand Binding Sites02:40

Ligand Binding Sites

12.8K
Proteins are dynamic macromolecules that carry out a wide variety of essential processes; however, the activities of most proteins depend on their interactions with other molecules or ions, known as ligands.
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
12.8K
The Equilibrium Binding Constant and Binding Strength02:18

The Equilibrium Binding Constant and Binding Strength

12.8K
The equilibrium binding constant (Kb) quantifies the strength of a protein-ligand interaction. Kb can be calculated as follows when the reaction is at equilibrium:
12.8K
Ligand Binding and Linkage00:49

Ligand Binding and Linkage

4.8K
Allosteric proteins have more than one ligand binding site; the binding of a ligand to any of these sites influences the binding of ligands to the other sites. When a protein is allosteric, its binding sites are called coupled or linked.  In the case of enzymes, the site that binds to the substrate is known as the active site and the other site is known as the regulatory site. When a ligand binds to the regulatory site, this leads to conformational changes in the protein that can influence...
4.8K

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相关实验视频

Updated: Jun 11, 2025

Development of Inhibitors of Protein-protein Interactions through REPLACE: Application to the Design and Development Non-ATP Competitive CDK Inhibitors
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Development of Inhibitors of Protein-protein Interactions through REPLACE: Application to the Design and Development Non-ATP Competitive CDK Inhibitors

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一个ANI-2启用的开源协议可以在对接后估计带菌株.

Francois Berenger1, Koji Tsuda1

  • 1Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Japan.

Journal of computational chemistry
|October 5, 2024
PubMed
概括

这项研究引入了一种新的计算协议,通过使用量子力学和蒙特卡洛方法估计连接物菌株来提高蛋白质-连接物对接的准确性. 这种方法可以显著提高虚拟选活动的命中率.

科学领域:

  • 计算化学是一种计算化学.
  • 药物发现 药物发现
  • 生物信息学是一种生物信息学.

背景情况:

  • 蛋白质-连接体对接分数通常是不精确的,因为很难用分子力学力场计算连接体的内部能量.
  • 这种不精确会引入噪音,对潜在的候选药物的准确排名产生负面影响.

研究的目的:

  • 开发和评估一个开源协议,用于估计接后的带应变能量.
  • 提高虚拟选的准确性,通过根据其估计的菌株过对接联体.

主要方法:

  • 该协议采用两种量子力学 (QM) 单点能量计算,将基于蒙特卡洛 (MC) 的双面空间的联体最小化进行三明治化.
  • 在MC模拟中使用ANI-2x力场,QM的近似,以高效地估计应变.
  • 基于结构的虚拟选活动在9个蛋白质标上进行,使用CCDC对带对接 (GOLD) 软件的基因优化.

主要成果:

  • 拟议的菌株估计协议,当在对接后应用时,表明能够显著提高某些蛋白质点的命中率.
  • 对虚拟选活动的分析表明,该方法的有效性取决于特定的蛋白质标和已知的活性/无活性分子的可用性.
  • 该协议并不能普遍保证改善命中率,强调需要针对特定目标进行评估.

结论:

关键词:
在 ANI‐2x 中,您可以使用 ANI‐2x.在LIT-PCBABA.这就是为什么MC MC MC.在QM中,QM就是QM.这就是SBVS.停靠的对接方式连接器连接器连接器压力 压力 压力 压力

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  • 开发的开源协议提供了一种有前途的方法,通过结合连接体菌株估计来完善蛋白质-连接体对接.
  • 菌株过可以提高虚拟选效率,但其成功取决于目标系统和数据可用性.
  • 建议进一步评估,以确定该协议对特定药物发现项目的有用性.