Cited by 94Protein Structure and DynamicsComputational Drug Discovery MethodsMachine Learning in Bioinformatics

Score-based generative modeling for de novo protein design

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Lee, Jin Sub, Kim, Jisun, Kim, Philip M.·2023·Nature Computational Science

Published version of a preprint

Abstract

The generation of de novo protein structures with predefined functions and properties remains a challenging problem in protein design. Diffusion models, also known as score-based generative models (SGMs), have recently exhibited astounding empirical performance in image synthesis. Here we use image-based representations of protein structure to develop ProteinSGM, a score-based generative model that produces realistic de novo proteins. Through unconditional generation, we show that ProteinSGM can generate native-like protein structures, surpassing the performance of previously reported generative models. We experimentally validate some de novo designs and observe secondary structure compositions consistent with generated backbones. Finally, we apply conditional generation to de novo protein design by formulating it as an image inpainting problem, allowing precise and modular design of protein structure.

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Authors
Lee, J. S., Kim, J., & Kim, P. M.
Affiliations
University of Toronto (CA)
Corresponding author
Kim, Philip M.
Venue
Nature Computational Science
Published
2023-05-04
Volume
3
Issue
5
Pages
382-392
ISSN
2662-8457 (ISSN-L)
OpenAlex
W4368374143
Cited by
94
References
13
Citations by year
2026: 20 · 2025: 25 · 2024: 34 · 2023: 14 · 2022: 1
FWCI
8.27
Type
journal article
Language
en
Open access
Locations
  • Nature Computational Science (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc)
  • Research Square (acceptedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Gouvernement du Canada | Instituts de Recherche en Santé du Canada | CIHR Skin Research Training Centre (PJT-153279)
  • Canadian Network for Research and Innovation in Machining Technology, Natural Sciences and Engineering Research Council of Canada (RGPIN-2017-064)
  • Gouvernement du Canada | Canadian Institutes of Health Research (PJT-153279)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Physical Sciences › Computer Science › Computational Theory and Mathematics › Computational Drug Discovery Methods
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Machine Learning in Bioinformatics
Keywords
de novo protein design, score-based generative models, diffusion models, image inpainting, protein stability
MeSH terms
Proteins, Protein Structure, Secondary

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