Identifying metastable states of folding proteins
Abstract
Recent molecular dynamics simulations of biopolymers have shown that in many cases the global features of the free energy landscape can be characterized in terms of the metastable conformational states of the system. To identify these states, a conceptionally and computationally simple approach is proposed. It consists of (i) an initial preprocessing via principal component analysis to reduce the dimensionality of the data, followed by k-means clustering to generate up to 10(4) microstates, (ii) the most probable path algorithm to identify the metastable states of the system, and (iii) boundary corrections of these states via the introduction of cluster cores in order to obtain the correct dynamics. By adopting two well-studied model problems, hepta-alanine and the villin headpiece protein, the potential and the performance of the approach are demonstrated.
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A network-based approach to lumping MSM states into metastable sets observed near-exponential exit time distributions when applied to peptide dynamics.
“Ref. [37] proposed a network-based approach to lumping MSM states into metastable sets, and observed near-exponential exit time distributions when applied to peptide dynamics.”
From Markov state models of biomolecular conformational dynamics (2014) · cites this paper as [37]
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Lost in Projection? Gaussian Filtering Recovers Hidden Conformational States
Sartore, S., Nagel, D., Diez, G., & Stock, G. (2026) · The Journal of Physical Chemistry Letters · doi:10.1021/acs.jpclett.6c00341
Self-citationBinding without Docking: Small-Molecule Binding Paths on Disordered Proteins
Louet, A. A. B., Hummer, G., & Vendruscolo, M. (2026) · Journal of the American Chemical Society · doi:10.1021/jacs.6c05891
- Authors
- Jain, A., & Stock, G.
- Affiliations
- University of Freiburg (DE)
- Corresponding author
- Stock, Gerhard
- Venue
- Journal of Chemical Theory and Computation
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-04-03
- Volume
- 8
- Issue
- 10
- Pages
- 3810-3819
- ISSN
- 1549-9618 (ISSN-L)
- 1549-9626
- OpenAlex
- W2313374938
- Cited by
- 75
- References
- 45
- Citations by year
- 2026: 3 · 2025: 2 · 2024: 3 · 2023: 4 · 2022: 4 · 2021: 4 · 2020: 6 · 2019: 5 · 2018: 10 · 2017: 5 · 2016: 5 · 2015: 7 · 2014: 8 · 2013: 8 · 2012: 1
- FWCI
- 3.08
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Chemical Theory and Computation (publishedVersion)
- PubMed (publishedVersion)
- FreiDok plus (Universitätsbibliothek Freiburg) (submittedVersion)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
- Physical Sciences › Chemistry › Physical and Theoretical Chemistry › Advanced Physical and Chemical Molecular Interactions
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
- Keywords
- metastable states, protein folding, free energy landscape, conformational states, principal component analysis, K-means clustering, cluster cores, villin headpiece, microstates
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