PolyFold

PolyFold simulates distance-based protein folding by using inter-residue distance matrices and stochastic optimization to model conformational transitions for protein structure prediction research.


Key Features:

  • Distance-based modeling: Implements folding driven by distance restraints rather than purely energy-based potentials.
  • Inter-residue distance matrices: Accepts and utilizes precise estimations of inter-residue distance matrices as foundational spatial constraints for structure prediction.
  • Stochastic optimization algorithms: Employs advanced stochastic optimization algorithms to search conformational space under distance constraints.
  • Real-time dynamic simulation: Simulates the folding process in real time to represent temporal evolution of conformations.
  • Dynamic rendering of conformational transitions: Produces time-resolved representations of transitions from unfolded to folded states driven by distance restraints and optimization.

Scientific Applications:

  • Protein structure prediction: Supports prediction workflows that leverage inter-residue distance information to derive tertiary structures.
  • Folding mechanism analysis: Enables investigation of folding pathways and conformational transitions under distance constraints.
  • Evaluation of distance-based methodologies: Provides a platform to assess and compare distance-based prediction and optimization approaches.

Methodology:

PolyFold uses estimated inter-residue distance matrices as spatial constraints and applies stochastic optimization algorithms to simulate folding dynamics in real time.

Topics

Details

License:
GPL-3.0
Programming Languages:
Java
Added:
1/18/2021
Last Updated:
1/24/2021

Operations

Publications

McGehee AJ, Bhattacharya S, Roche R, Bhattacharya D. PolyFold: An interactive visual simulator for distance-based protein folding. PLOS ONE. 2020;15(12):e0243331. doi:10.1371/journal.pone.0243331. PMID:33270805. PMCID:PMC7714222.

PMID: 33270805
PMCID: PMC7714222
Funding: - National Institute of General Medical Sciences: R35GM138146 - Division of Information and Intelligent Systems: 2030722 - Division of Biological Infrastructure: 1942692