Atomic context-conditioned protein sequence design using LigandMPNN

• 全文链接

基于原子环境配体条件的蛋白质序列设计：应用LigandMPNN工具

关键词：

来源：

Nature Methods

全文链接：

//agri.nais.net.cn/topic/downloadFile/aeddda88-ec7a-478b-9bb9-79a7cd39246e

来源地址：

https://www.nature.com/articles/s41592-025-02626-1

资源所属：

饲料用酶工程

类型：

学术文献

语种：

英语

原文发布日期：

2025-03-28

摘要：

Protein sequence design in the context of small molecules, nucleotides and metals is critical to enzyme and small-molecule binder and sensor design, but current state-of-the-art deep-learning-based sequence design methods are unable to model nonprotein atoms and molecules. Here we describe a deep-learning-based protein sequence design method called LigandMPNN that explicitly models all nonprotein components of biomolecular systems. LigandMPNN significantly outperforms Rosetta and ProteinMPNN on native backbone sequence recovery for residues interacting with small molecules (63.3% versus 50.4% and 50.5%), nucleotides (50.5% versus 35.2% and 34.0%) and metals (77.5% versus 36.0% and 40.6%). LigandMPNN generates not only sequences but also sidechain conformations to allow detailed evaluation of binding interactions. LigandMPNN has been used to design over 100 experimentally validated small-molecule and DNA-binding proteins with high affinity and high structural accuracy (as indicated by four X-ray crystal structures), and redesign of Rosetta small-molecule binder designs has increased binding affinity by as much as 100-fold. We anticipate that LigandMPNN will be widely useful for designing new binding proteins, sensors and enzymes.