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相关概念视频

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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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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Author Spotlight: A Computational Approach to Decipher Amino Acid Preferences in Multispecific Protein-Protein Interactions
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从ChEMBL数据库中识别潜在的BACE1抑制剂,使用机器学习和原子模拟方法.

Quang Tung Dao1, Thi Mai Dung Do2,3, Quynh Mai Thai4,5

  • 1Department of Computer and Systems Sciences, Stockholm University, Stockholm 106 91, Sweden.

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概括

这项研究使用机器学习和模拟来寻找针对BACE1.1的新阿尔茨海默病药物. 计算方法通过分析数百万种化合物来加速发现潜在的抑制剂.

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科学领域:

  • 计算化学是一种计算化学.
  • 药物发现 药物发现
  • 神经科学是一个神经科学.

背景情况:

  • 阿尔茨海默病 (AD) 的特点是粉样β (Aβ) 斑块的形成.
  • 抑制β位粉样蛋白前体蛋白分裂酶1 (BACE1) 是减少Aβ生产的关键治疗策略.
  • 加快发现有效的BACE1抑制剂对于开发新型AD治疗至关重要.

研究的目的:

  • 开发和应用一个结合机器学习 (ML) 和原子模拟的计算框架,以快速识别潜在的BACE1抑制剂.
  • 选一个大型的化学图书馆,并确定阿尔茨海默病的有前途的候选药物.

主要方法:

  • 机器学习模型被训练在BACE1配体的实验性结合亲和力数据上.
  • 高精度的ML模型被用来选来自CHEMBL33库的200多万种化合物.
  • 通过分子对接和快速拉动连接物 (FPL) 模拟,进一步分析了顶部冲击化合物.

主要成果:

  • ML模型显示了对联体结合亲缘关系的高预测准确度.
  • 查确定了强大的BACE1抑制剂候选人的短名单.
  • FPL模拟提供了详细的洞察力,了解BACE1-联结体复合物的结合稳定性和相互作用机制.

结论:

  • 综合计算方法有效地加速了新型BACE1抑制剂的发现.
  • 鉴定的化合物和结合性见解可以指导下一代阿尔茨海默氏症治疗方法的合理设计.
  • 这一战略为开发针对神经退行性疾病的向治疗提供了一个强大的平台.