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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 Organization01:24

Protein Organization

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Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
The primary structure of a protein is its amino acid sequence....
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相关实验视频

Updated: Jun 18, 2025

Author Spotlight: Evaluating Biophysical Assays for Characterizing PROTACS Ternary Complexes
07:22

Author Spotlight: Evaluating Biophysical Assays for Characterizing PROTACS Ternary Complexes

Published on: January 12, 2024

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对于PROTAC三元复杂结构预测的基准分析方法.

Evianne Rovers1,2, Matthieu Schapira1,2

  • 1Structural Genomics Consortium, Toronto M5G 1L7, Canada.

Journal of chemical information and modeling
|August 1, 2024
PubMed
概括
此摘要是机器生成的。

预测蛋白质解离向仿真体 (PROTACs) 三元复合体的计算工具有希望,但需要进一步开发. 基准测试揭示了预测的变化,表明PROTAC可能采用多个配置.

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A Protocol for Computer-Based Protein Structure and Function Prediction
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A Protocol for Computer-Based Protein Structure and Function Prediction

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相关实验视频

Last Updated: Jun 18, 2025

Author Spotlight: Evaluating Biophysical Assays for Characterizing PROTACS Ternary Complexes
07:22

Author Spotlight: Evaluating Biophysical Assays for Characterizing PROTACS Ternary Complexes

Published on: January 12, 2024

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A Protocol for Computer-Based Protein Structure and Function Prediction
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A Protocol for Computer-Based Protein Structure and Function Prediction

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Protein WISDOM: A Workbench for In silico De novo Design of BioMolecules
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Protein WISDOM: A Workbench for In silico De novo Design of BioMolecules

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科学领域:

  • 计算化学和结构生物学
  • 药物发现和分子设计.

背景情况:

  • 针对蛋白质溶解的嵌合体 (PROTACs) 是双功能分子,通过无处不在诱导目标蛋白质降解.
  • 精确的PROTAC三元复合物的结构模型对于合理的药物设计和优化至关重要.
  • 在没有实验结构的情况下,使用计算方法来预测这些三元复合体.

研究的目的:

  • 系统地比较三种常用的计算工具 (PRosettaC,MOE和ICM) 的性能,用于预测PROTAC三元复杂结构.
  • 评估这些工具在生成反映实验观察结构的模型时的准确性和可靠性.
  • 用分子动力学模拟来评估PROTAC三元复合体的结构灵活性.

主要方法:

  • 使用定义的数据集对PRosettaC,MOE和ICM进行系统的比较.
  • 为每个 PROTAC.生成多个三元复杂结构.
  • 分子动力学 (MD) 模拟用于探索构造性景观.

主要成果:

  • 评估的计算工具产生了多样化的三元复杂结构,其中一些与实验数据保持一致,而另一些则明显偏离.
  • 分子动力学模拟表明,PROTAC复合体可以存在多个配置状态.
  • 该研究质疑仅仅依赖实验观察到的结构作为计算预测的明确参考.

结论:

  • 目前用于PROTAC三元复杂建模的计算工具提供了有价值的见解,但在准确性和形态表示方面面临挑战.
  • 复杂的PROTAC结构可能比通常由单个实验快照所代表的更具动态性.
  • 未来的计算工作应该整合结构和生物物理数据,提供的基准测试数据集可以帮助评估新工具.