Cited by 56Protein Structure and DynamicsComputational Drug Discovery MethodsReceptor Mechanisms and Signaling

Artificial intelligence guided conformational mining of intrinsically disordered proteins

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Gupta, Aayush, Dey, Souvik, Hicks, Alan, Zhou, Huan-Xiang·2022·Communications Biology

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Abstract

Artificial intelligence recently achieved the breakthrough of predicting the three-dimensional structures of proteins. The next frontier is presented by intrinsically disordered proteins (IDPs), which, representing 30% to 50% of proteomes, readily access vast conformational space. Molecular dynamics (MD) simulations are promising in sampling IDP conformations, but only at extremely high computational cost. Here, we developed generative autoencoders that learn from short MD simulations and generate full conformational ensembles. An encoder represents IDP conformations as vectors in a reduced-dimensional latent space. The mean vector and covariance matrix of the training dataset are calculated to define a multivariate Gaussian distribution, from which vectors are sampled and fed to a decoder to generate new conformations. The ensembles of generated conformations cover those sampled by long MD simulations and are validated by small-angle X-ray scattering profile and NMR chemical shifts. This work illustrates the vast potential of artificial intelligence in conformational mining of IDPs.

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Authors
Gupta, A., Dey, S., Hicks, A., & Zhou, H.-X.
Affiliations
University of Illinois Chicago (US)
Corresponding author
Zhou, Huan-Xiang
Venue
Communications Biology
Published
2022-06-20
Volume
5
Issue
1
Pages
610-610
ISSN
2399-3642 (ISSN-L)
OpenAlex
W4283164695
Cited by
56
References
49
Citations by year
2026: 8 · 2025: 19 · 2024: 12 · 2023: 13 · 2022: 4
FWCI
3.92
Type
journal article
Language
en
Open access
Locations
  • Communications Biology (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
U.S. Department of Health & Human Services | National Institutes of Health (GM118091)
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 › Receptor Mechanisms and Signaling
Keywords
intrinsically disordered proteins, conformational ensembles, generative autoencoders, latent space sampling, molecular dynamics simulation, conformational sampling, small-angle X-ray scattering, NMR chemical shifts, protein structure prediction
MeSH terms
Artificial Intelligence, Protein Conformation, Molecular Dynamics Simulation, Intrinsically Disordered Proteins

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