cg_openmm

cg_openmm is a Python package for setup and thermodynamic analysis of coarse-grained oligomer replica exchange molecular dynamics (REMD) simulations, with a focus on identifying and analyzing cooperative folding transitions.

  • Build coarse-grained hetero-oligomer topology and force field definitions using the highly customizable potentials in OpenMM

  • Set up GPU-accelerated REMD simulations with a CGModel and a few lines of python code

  • Compute heat capacity as a near-continuous function of temperature using MBAR and a bootstrapping scheme

  • Compute native contact fraction expectation and free energy of folding as functions of temperature using MBAR and a bootstrapping scheme (requires a native structure determined using analyze_foldamers)

  • Predict helix-stabilizing force field parameters using a helical geometry optimization tool

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