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arXiv 2009.01411q-bio.BMcs.LGstat.ML
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用几何矢量感知器学习蛋白质结构

Learning from Protein Structure with Geometric Vector Perceptrons

Stanford University(斯坦福大学)

Bowen Jing, Stephan Eismann, Patricia Suriana, Raphael J. L. Townshend, Ron Dror

摘要:

大型生物分子的3D结构学习正在成为机器学习的一个独特领域,但尚未出现一个统一的网络架构,同时利用问题域的图形结构和几何方面。为了解决这一差距,我们引入几何矢量感知器,它扩展了标准的密集层,以操作欧几里德向量的集合。图神经网络配备了这样的层能够执行几何和关系推理的高分子结构的有效和自然的表示。我们展示了我们的方法上的两个重要问题,从蛋白质结构学习:模型质量评估和计算蛋白质设计。我们的方法改进了现有的架构类,包括最先进的基于图形和基于体素的方法。我们在https://github.com/drorlab/gvp上发布代码。

英文摘要:

Learning on 3D structures of large biomolecules is emerging as a distinct area in machine learning, but there has yet to emerge a unifying network architecture that simultaneously leverages the graph-structured and geometric aspects of the problem domain. To address this gap, we introduce geometric vector perceptrons, which extend standard dense layers to operate on collections of Euclidean vectors. Graph neural networks equipped with such layers are able to perform both geometric and relational reasoning on efficient and natural representations of macromolecular structure. We demonstrate our approach on two important problems in learning from protein structure: model quality assessment and computational protein design. Our approach improves over existing classes of architectures, including state-of-the-art graph-based and voxel-based methods. We release our code at https://github.com/drorlab/gvp.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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