使用基于序列的深度学习模型预测蛋白质中的B因子
Akash Pandey1, Elaine Liu1, Jacob Graham1
1Department of Mechanical Engineering, Northwestern University, Evanston, IL, USA.
Patterns (New York, N.Y.)
|September 18, 2023
概括
预测蛋白质B因子对于理解蛋白质动态至关重要,现在更加准确. 一个新的深度学习模型通过利用序列数据来捕捉邻近原子效应,显著优于现有方法.
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
- 蛋白质动力学 蛋白质动力学
背景情况:
- 对于理解蛋白质动态和原子灵活性,B因子是必不可少的.
- 由于邻近原子在3D空间中的影响,预测B因子具有挑战性.
- 以前的计算模型在预测超出训练数据集的B因素方面显示出有限的准确性.
研究的目的:
- 开发一种先进的深度学习模型,用于准确预测蛋白质中的原子B因子.
- 提高现有的最先进方法的预测性能.
主要方法:
- 开发一种新的基于序列的深度学习模型.
- 在2442个蛋白质的大数据集上测试模型.
- 使用一个废弃性研究来评估初级序列信息的贡献.
主要成果:
- 与最先进的方法相比,开发的模型显示预测准确度提高了30%.
- 该模型确定了12-15 Å半径内的原子对B因子预测的显著影响.
- 除研究表明,单独的初级序列数据对B因子具有很高的预测性.
结论:
- 新的基于序列的深度学习模型在预测蛋白B因子方面取得了重大进展.
- 这些发现支持了当地的原子邻居在确定蛋白质动态中的重要性.
- 该模型为预测其他B因子相关性质提供了基础.
相关概念视频
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...
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...
4.2K
Protein Families
15.4K
Protein families are groups of homologous proteins; that is, they have similarities in amino acid sequences and three-dimensional structures. Protein families usually occur because of gene duplication, where an additional copy of a gene is inserted into the genome of an organism. Mutations that change the amino acids but still allow the protein to be properly synthesized, will lead to new protein family members. If these new proteins contain similar amino acids in key...
15.4K
Conservation of Protein Domains Over Different Proteins
10.9K
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...
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to...
10.9K
Protein Folding
118.4K
Overview
118.4K
Conservation of Protein Domains
3.1K
3.1K
Protein Complexes with Interchangeable Parts
2.6K
Groups of proteins may form a complex where each protein in this complex has a different role in the overall execution of the complex’s function. Often some of the proteins in the complex can be replaced by a closely related variant to give a complex that contains many of the same components yet is functionally distinct.
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order...
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order...
2.6K


