Cited by 174Protein Structure and DynamicsEnzyme Structure and FunctionReceptor Mechanisms and Signaling

AlphaFold2: A Role for Disordered Protein/Region Prediction?

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Wilson, Carter J., Choy, Wing-Yiu, Karttunen, Mikko·2022·International Journal of Molecular Sciences

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Abstract

The development of AlphaFold2 marked a paradigm-shift in the structural biology community. Herein, we assess the ability of AlphaFold2 to predict disordered regions against traditional sequence-based disorder predictors. We find that AlphaFold2 performs well at discriminating disordered regions, but also note that the disorder predictor one constructs from an AlphaFold2 structure determines accuracy. In particular, a naïve, but non-trivial assumption that residues assigned to helices, strands, and H-bond stabilized turns are likely ordered and all other residues are disordered results in a dramatic overestimation in disorder; conversely, the predicted local distance difference test (pLDDT) provides an excellent measure of residue-wise disorder. Furthermore, by employing molecular dynamics (MD) simulations, we note an interesting relationship between the pLDDT and secondary structure, that may explain our observations and suggests a broader application of the pLDDT for characterizing the local dynamics of intrinsically disordered proteins and regions (IDPs/IDRs).

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Authors
Wilson, C. J., Choy, W.-Y., & Karttunen, M.
Affiliations
Western University (CA)
Corresponding author
Karttunen, Mikko
Venue
International Journal of Molecular Sciences
Publisher
MDPI AG
Published
2022-04-21
Volume
23
Issue
9
Pages
4591
ISSN
1422-0067 (ISSN-L)
OpenAlex
W4224259818
Cited by
173
References
102
Citations by year
2026: 32 · 2025: 35 · 2024: 39 · 2023: 48 · 2022: 18 · 2012: 1
FWCI
11.51
Type
journal article
Language
en
Open access
Locations
  • International Journal of Molecular Sciences (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, cc-by-sa)
Funders
  • Compute Canada
  • Canada Research Chairs
  • Natural Sciences and Engineering Research Council of Canada
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Physical Sciences › Materials Science › Materials Chemistry › Enzyme Structure and Function
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
Keywords
AlphaFold2, intrinsically disordered proteins, intrinsically disordered regions, disorder prediction, pLDDT, secondary structure, protein structure prediction, molecular dynamics simulation, protein dynamics
MeSH terms
Protein Domains, Protein Conformation, Protein Structure, Secondary, Molecular Dynamics Simulation, Intrinsically Disordered Proteins

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