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相关概念视频

Ligand Binding Sites02:40

Ligand Binding Sites

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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...
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Conserved Binding Sites01:49

Conserved Binding Sites

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Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally...
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Protein-protein Interfaces02:04

Protein-protein Interfaces

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Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
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Ligand Binding and Linkage00:49

Ligand Binding and Linkage

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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...
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The Equilibrium Binding Constant and Binding Strength02:18

The Equilibrium Binding Constant and Binding Strength

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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:
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Protein Networks02:26

Protein Networks

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An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
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CryptoBench:神秘的蛋白质 - 连接物结合站点数据集和基准.

Vít Škrhák1, Marian Novotný2, Christos P Feidakis2

  • 1Department of Software Engineering, Faculty of Mathematics and Physics, Charles University, 118 00 Prague, Czech Republic.

Bioinformatics (Oxford, England)
|December 18, 2024
PubMed
概括

一个新的基准数据集,CryptoBench,可以更好地预测蛋白质中的加密结合位点 (CBS). 基于序列的方法在CBS检测的基于结构的方法上显示出更高的性能,建立了一个新的基线.

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科学领域:

  • 计算生物学是一种计算生物学.
  • 结构生物信息学 结构生物信息学
  • 药物发现 药物发现

背景情况:

  • 预测蛋白质 - 配体结合部位对于研究和医学至关重要.
  • 现有的方法经常使用连接体 (hol) 蛋白质结构,这对于密码结合点 (CBS) 是有问题的.
  • 这种对全息状态的依赖导致对CBS检测的不切实际的性能期望.

研究的目的:

  • 介绍CryptoBench,这是一个全面的基准数据集,用于培训和评估新的CBS预测方法.
  • 使用CryptoBench建立现有的CBS预测方法的性能基准.
  • 为了比较基于序列和基于结构的CBS检测方法的疗效.

主要方法:

  • CryptoBench 是使用 Apo-holo 蛋白质对构建的,其结合部位具有显著的结构变化.
  • 数据集包括 1107 个结构,具有预定义的交叉验证分割.
  • 基于序列的方法使用了蛋白质语言模型嵌入,而基于结构的方法包括PocketMiner和P2Rank.

主要成果:

  • 开发的基于序列的方法在预测CBS余量方面超过了PocketMiner和P2Rank.
  • 关键指标如AUC,AUCPR,MCC和F1分数证明了基于序列的方法的优越性.
  • 到目前为止,CryptoBench 是CBS预测最广泛的数据集.

结论:

  • 基于序列的方法为未来的CBS预测研究提供了强有力的基准.
  • CryptoBench 是一个基础资源,用于推进加密绑定站点检测领域.
  • 数据集和代码是公开的,以促进进一步的研究和开发.