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相关概念视频

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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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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.
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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.
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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.
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The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
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Drugs target macromolecules to modify ongoing cellular processes. Primary drug targets include receptors, ion channels, transporters, and enzymes.
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  • 1Center for Computational Biology (CBIO), Mines Paris-PSL, 75006 Paris, France.

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科学领域:

  • 计算化学和化学信息学
  • 生物信息学和计算生物学
  • 药物的发现和开发.

背景情况:

  • 药物标相互作用 (DTI) 的预测对于药物发现至关重要,有助于标的脱化和识别.
  • 现有的DTI预测方法往往在各种分子和蛋白质空间的可扩展性和广泛适用性方面扎.
  • 开发大型,高质量的数据集和高效,可扩展的预测算法是关键的挑战.

研究的目的:

  • 为了应对构建大型DTI数据集和开发可扩展的预测方法的挑战.
  • 引入LCIdb,用于DTI预测的全面数据集,扩大分子空间覆盖范围.
  • 提出Komet,一个新的,可扩展的DTI预测管道,旨在在大型数据集上提供高性能.

主要方法:

  • 创建LCIdb,一个大型,精心策划的DTI数据集,涵盖广泛的分子和蛋白质.
  • 开发Komet,一个DTI预测管道,使用Kronecker交互模块和Nyström近似.
  • 实现Komet的高效计算,GPU并行化和准牛顿优化,以实现可扩展性.

主要成果:

  • 与最先进的深度学习方法相比,Komet表现出卓越的可扩展性和预测性能.
  • 管道显示了对外部数据集和支架跳跃基准的强大概括能力.
  • 与现有的公开基准相比,LCIdb的分子空间覆盖范围要大得多.

结论:

  • 科米特为药物发现中的大规模DTI预测提供了一种高效和高性能解决方案.
  • 开发的方法和数据集有助于在识别新型药物目标关系方面取得进展.
  • 开源的Komet和数据集的可用性促进了该领域的进一步研究和应用.