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arXiv 2503.19300cs.LGq-bio.BM

UniMoMo:用于从头设计结合剂的3D分子统一生成建模

UniMoMo: Unified Generative Modeling of 3D Molecules for De Novo Binder Design

Tsinghua University(清华大学);Institute for AI Industry Research (AIR), Tsinghua University(清华大学人工智能产业研究院);Renmin University of China(中国人民大学);Bytedance(字节跳动)

Xiangzhe Kong, Zishen Zhang, Ziting Zhang, Rui Jiao, Jianzhu Ma, Wenbing Huang, Kai Liu, Yang Liu

AI总结:

UniMoMo提出首个统一生成框架,通过块图表示和几何潜在扩散模型,实现用单一模型设计多域3D分子结合剂,在肽、抗体和小分子基准上优于域特定模型。

摘要:

设计靶标特异性分子,如小分子、肽和抗体,对生物学研究和药物发现至关重要。现有的生成方法局限于单域分子,无法满足多样化的治疗需求,也无法利用跨域可迁移性来增强模型性能。在本文中,我们引入了3D分子统一生成建模(UniMoMo),这是首个能够使用单一模型设计多个分子域结合剂的框架。具体而言,UniMoMo将不同分子的表示统一为块图,其中每个块对应一个标准氨基酸或一个分子片段。随后,UniMoMo利用几何潜在扩散模型进行3D分子生成,其特点是通过迭代全原子自编码器将块压缩为潜在空间点,然后进行E(3)等变扩散过程。在肽、抗体和小分子上的广泛基准测试表明,我们的统一框架优于现有的域特定模型,凸显了多域训练的优势。

英文摘要:

The design of target-specific molecules such as small molecules, peptides, and antibodies is vital for biological research and drug discovery. Existing generative methods are restricted to single-domain molecules, failing to address versatile therapeutic needs or utilize cross-domain transferability to enhance model performance. In this paper, we introduce Unified generative Modeling of 3D Molecules (UniMoMo), the first framework capable of designing binders of multiple molecular domains using a single model. In particular, UniMoMo unifies the representations of different molecules as graphs of blocks, where each block corresponds to either a standard amino acid or a molecular fragment. Subsequently, UniMoMo utilizes a geometric latent diffusion model for 3D molecular generation, featuring an iterative full-atom autoencoder to compress blocks into latent space points, followed by an E(3)-equivariant diffusion process. Extensive benchmarks across peptides, antibodies, and small molecules demonstrate the superiority of our unified framework over existing domain-specific models, highlighting the benefits of multi-domain training.

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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