ConPep:使用预训练的生物语言模型和多视图功能提取策略预测接触地图
Qingxin Wei1, Ruheng Wang1, Yi Jiang1
1School of Software, Shandong University, Jinan, China; Joint SDU-NTU Centre for Artificial Intelligence Research (C-FAIR), Shandong University, Jinan, China.
Computers in biology and medicine
|November 10, 2023
概括
使用仅序列数据,ConPep可以准确预测接触地图. 这种深度学习框架通过整合生物语言模型和先进的神经网络,优于现有的方法,特别是短.
科学领域:
- 计算生物学 计算生物学
- 生物信息学是一种生物信息学.
- 结构生物学 结构生物学
背景情况:
- 预测接触图对于理解蛋白质结构至关重要,但对于短序列来说具有挑战性.
- 现有的方法经常在短序列中的有限的交互信息中扎.
研究的目的:
- 开发一个深度学习框架,ConPep,仅使用序列信息来准确预测接触图.
- 为了提高短的预测准确性和稳定性.
主要方法:
- 利用预训练的生物语言模型来捕获连续的语义信息.
- 嵌入式双向门式反复单元和注意力机制,用于多视图特征提取.
- 利用从大规模数据库中转移学习.
主要成果:
- 在独立测试中,ConPep显著超过了最先进的方法,特别是在短上.
- 与基于多个序列对齐 (MSA) 的方法相比,该模型在序列级别上表现出更高的性能.
- 通过集成的本地和全球特征提取实现了更高的准确性和稳定性.
结论:
- ConPep提供了一种强大而准确的方法,用于仅从序列数据中预测接触地图.
- 该框架的性能,特别是在短上,表明其在结构生物学中具有更广泛应用的潜力.
- 这种方法为依赖MSA的方法提供了有价值的替代方案.
相关概念视频
Protein-protein Interfaces
12.5K
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...
12.5K
Multi-pass Transmembrane Proteins and β-barrels
5.3K
In multi-pass transmembrane proteins, the polypeptide chain crosses the membrane more than once. The transmembrane polypeptide chain either forms an α-helix or β-strand structure. α-Helix containing multi-pass transmembrane proteins are ubiquitous, whereas β-strand containing ones are mainly found in gram-negative bacteria, mitochondria, and chloroplasts.
α-Helix containing multi-pass transmembrane proteins
Multi-pass transmembrane proteins such as...
α-Helix containing multi-pass transmembrane proteins
Multi-pass transmembrane proteins such as...
5.3K


