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Fitting Atomic Structures into Cryo-EM Maps by Coupling Deep Learning-Enhanced Map Processing with Global-Local Optimization

delete2025-03-28
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PRE
AI
Y
Yaxian Cai
Z
Ziying Zhang
X
Xiangyu Xu
L
Liang Xu
Y
Yu Chen
G
Guijun Zhang
DOI:10.1021/acs.jcim.5c00004delete
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摘要

摘要

En 中文
随着蛋白质结构预测技术的突破,通过结构拟合从冷冻电子显微镜(cryo-EM)密度图中构建原子结构变得越来越关键。然而,所构建模型的准确性严重依赖于结构-图拟合的精度。在本研究中,我们介绍了DEMO-EMfit,一种渐进式方法,它整合了基于深度学习的骨架图提取与全局-局部结构姿态搜索,以将原子结构拟合到密度图中。DEMO-EMfit已在包含蛋白质和核酸复合物的冷冻电子断层扫描(cryo-ET)和cryo-EM图的基准数据集上进行了广泛评估。结果表明,DEMO-EMfit优于当前最先进的方法,为将原子结构拟合到密度图中提供了一种高效且准确的工具。
Keyword:
PROTEIN STRUCTURES
DENSITY MAPS
REFINEMENT

期刊

Journal of Chemical Information and Modeling 封面图
Journal of Chemical Information and Modeling
IF:
5.3
论文数:
9.1K
被引数:
4.0W

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