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相关概念视频

Protein Organization01:24

Protein Organization

6.3K
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....
6.3K
Conserved Binding Sites01:49

Conserved Binding Sites

4.2K
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 and Protein Structure02:15

Protein and Protein Structure

79.0K
Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
A protein's shape is critical to its function. For example, an enzyme...
79.0K
Protein Folding01:22

Protein Folding

117.6K
Overview
117.6K
Conservation of Protein Domains Over Different Proteins02:26

Conservation of Protein Domains Over Different Proteins

10.8K
Protein domains are small structurally independent units that are part of a single amino acid chain.  Although these domains are often structurally independent, they may rely on synergistic effects to perform their functions as part of a larger protein. Protein domains may be conserved within the same organism, as well as across different organisms.
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to...
10.8K

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Updated: Jun 12, 2025

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

Published on: July 25, 2013

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基于几何深度学习的全原子蛋白质序列设计

Jiale Liu1, Zheng Guo1, Hantian You2

  • 1Center for Life Sciences Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China.

Angewandte Chemie (International ed. in English)
|September 19, 2024
PubMed
概括
此摘要是机器生成的。

新的深度学习工具GeoSeqBuilder可以设计新型蛋白序列并预测它们的3D结构. 实验测试显示出高成功率,使得能够创建具有量身定制属性的功能性蛋白质.

关键词:
深度学习是一种深度学习.蛋白质的设计 蛋白质的设计序列的新奇性 序列的新奇性侧链形状的预测

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科学领域:

  • 蛋白质工程是一种蛋白质工程.
  • 计算生物学是一种计算生物学.
  • 结构生物学是结构生物学.

背景情况:

  • 设计具有特定功能的新型蛋白质需要对给定的脊柱进行精确的序列生成.
  • 准确预测侧链形状对于确定最终的3D结构和功能至关重要.

研究的目的:

  • 介绍GeoSeqBuilder,这是一个深度学习框架,用于新的蛋白质序列设计.
  • 将序列生成与侧链形状预测集成为完整的全原子结构生成.
  • 根据领先的方法和实验数据验证GeoSeqBuilder的性能.

主要方法:

  • GeoSeqBuilder使用来自蛋白质骨干的空间几何特征.
  • 在其深度学习模型中包含邻近残留物的三体相互作用.
  • 预测设计蛋白质的序列和侧链结构.

主要成果:

  • 实现了51.6%的原生残留物类型回收率,与最先进的方法相比.
  • 设计的 thioredoxin 和三螺旋捆的序列产生了可溶性,稳定的蛋白质,其溶解晶体结构与设计相匹配.
  • 重新设计的谷氨过氧化酶4在5种设计中,在3种设计中改善了酶活性.

结论:

  • GeoSeqBuilder是一个强大的工具,用于设计具有原子细节的预定义结构的新型蛋白质序列.
  • 证明了高的实验成功率,促进了新的功能性蛋白质的创造.
  • 该框架提供与原始和显著改变的疏水核的低序列相似性,使新型蛋白质设计成为可能.