DA-HGL:用于蛋白质功能预测的域增强异构图学习框架
Sai Hu1, Wei Zhang2,3, Bihai Zhao2,3
1School of Mathematics, Changsha University, No. 98 Hongshan Road, Changsha, Hunan 410022, China.
Briefings in bioinformatics
|September 28, 2025
概括
精确的蛋白质功能预测得到了DA-HGL的改进,这是一个整合多样化数据的新框架. 这种方法在预测稀有注释蛋白的功能方面表现出色,有助于疾病机制研究.
科学领域:
- 基因组学就是基因组学.
- 生物信息学是一种生物信息学.
- 计算生物学 计算生物学
背景情况:
- 准确的蛋白质功能预测对于了解疾病和推进精准医学至关重要.
- 目前的方法面临着稀疏注释和整合多式联运数据的挑战.
- 现有的方法往往无法整体地整合各种生物数据源.
研究的目的:
- 开发DA-HGL,一种用于增强蛋白质功能预测的新型异质图形学习框架.
- 解决现有方法在处理注释稀疏性和多式联运数据集成方面的局限性.
- 提高蛋白质功能预测的准确性和稳定性,特别是对于注释有限的蛋白质.
主要方法:
- 使用异质图形学习框架 (DA-HGL),集成蛋白序列,域架构和基因本体学 (GO) 层次结构.
- 采用多层图形结构和具有双重生物约束的非负矩阵分解.
- 在图形框架内建模域函数连贯性,GO语义一致性和拓一致性.
主要成果:
- 与最先进的方法相比,DA-HGL显著提高了性能,Fmax增加了9.0% (酵母CC) 和17.2% (人类BP).
- 该框架成功地解决了注释稀疏性问题,在冷启动场景中表现出特别强大的优势.
- DA-HGL准确地预测了特定疾病相关途径的功能,例如帕金森氏症的"依赖于ubiquitin的代谢".
结论:
- DA-HGL为加速功能基因组学和精准医学提供了强大而有效的框架.
- 该方法集成多式联络数据和处理稀疏注释的能力在蛋白质功能预测方面取得了重大进展.
- 这种方法有望解读复杂的疾病机制,并使更有针对性的治疗策略成为可能.
更多相关视频
06:50Author Spotlight: A Computational Approach to Decipher Amino Acid Preferences in Multispecific Protein-Protein Interactions
Published on: January 26, 2024
2.5K
07:35A Knowledge Graph Approach to Elucidate the Role of Organellar Pathways in Disease via Biomedical Reports
Published on: October 13, 2023
2.1K
相关概念视频
Conservation of Protein Domains Over Different Proteins
14.0K
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...
14.0K
Protein Networks
4.5K
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.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
4.5K
Protein Networks
2.8K
2.8K
Protein-protein Interfaces
14.4K
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...
14.4K
Protein-Protein Interfaces
4.4K
4.4K
Conservation of Protein Domains
4.0K
4.0K
