通过卷积神经网络和蛋白质结构和动态特征来预测Allosteric
Rajitha Rajeshwar T1, John H Lagergren2, Jeremy C Smith1
1UT/ORNL Center for Molecular Biophysics, Oak Ridge National Laboratory, Oak Ridge, Tennessee; Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, Tennessee; Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee.
这项研究使用机器学习来预测蛋白质的全性状态,这对于理解蛋白质功能和开发向癌症药物至关重要. 原子接触地图和深度学习在分类KRas蛋白状态时达到高达90%的准确性.
科学领域:
- 生物化学 生物化学
- 计算生物学 计算生物学
- 机器学习 机器学习
背景情况:
- 菌通过远端部位调节来调节蛋白质功能,这对细胞过程至关重要.
- 预测全状况有助于功能注释和药物开发,通过使特定的全位点向.
研究的目的:
- 开发一种机器学习方法,用于预测蛋白质全功能状态.
- 为了利用KRas蛋白质,涉及癌症,作为这个预测的模型系统.
主要方法:
- 采用卷积神经网络 (CNN),特别是谷歌LeNet和ResNet18,用于监督学习.
- 利用结构和动态特征 (原子间距离,接触地图,共变率,相互信息) 作为像图像一样的CNN输入.
- 微调预训练CNN架构,将KRs分为活跃或不活跃的状态.
主要成果:
- 原子接触地图被证明是预测最有效的结构特征.
- 线性化相互信息在捕捉相关的动态相关性方面超过了共变性.
- 模型实现了显著的验证准确性,原子接触图的准确性高达90%.
结论:
- 深度学习整合了全球结构重组和相关运动,可以可靠地预测蛋白质的全性状态.
- 这种方法为了解全调节提供了一个有前途的框架.
- 这些发现支持通过准确预测蛋白质功能状态来开发向疗法.
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
08:04Identification and Classification of Position-specific GABAA Receptor Subunit Missense Variants for Their Role In Hippocampal Pyramidal Neurons
Published on: June 6, 2025
相关概念视频
Cooperative Allosteric Transitions
Cooperative Allosteric Transitions
Cooperative Allosteric Transitions
Conserved Binding Sites
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...
Allosteric Proteins-ATCase
Aspartate transcarbamoylase (ATCase) is a cytosolic enzyme that catalyzes the condensation of L-aspartate and carbamoyl phosphate to N-carbamoyl-L-aspartate. This reaction is the first step in pyrimidine biosynthesis. UTP and CTP, the end products of the pyrimidine synthesis...
Protein Networks
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,...
