SBMOpenMM

SBMOpenMM enables construction and execution of structure-based model (SBM) molecular dynamics (MD) simulations with the OpenMM engine to investigate biomolecular folding, conformational dynamics, and thermodynamic properties.

Key Features:

• Python library: Implements SBM model construction and simulation control as a Python library.
• OpenMM integration: Generates SBM force fields compatible with the OpenMM simulation engine and executes MD simulations on OpenMM.
• Structure-based model construction: Builds structure-based models that simplify biomolecular systems to focus on relevant dynamics.
• Custom force fields: Creates custom SBM force fields from structural information and maps protein system data to OpenMM force objects.
• Energy landscape analysis: Enables exploration of complex potential energy surfaces with substantial energy barriers to assess convergence.
• Thermodynamics and entropy assessment: Facilitates determination of thermodynamic properties and conformational entropy relevant for evaluating simulation convergence.
• Protein and complex studies: Supports simulations of protein systems and protein complexes to study folding and interactions.
• Computational efficiency: Reduces computational cost relative to full atomistic MD by focusing on essential dynamics via model simplifications.
• Performance and customizability: Leverages OpenMM performance and customizability for efficient SBM simulations.

Scientific Applications:

• Protein folding and conformational dynamics: Investigate folding mechanisms and conformational transitions in proteins.
• Thermodynamic and entropy estimation: Estimate thermodynamic properties and conformational entropy to evaluate simulation convergence.
• Energy landscape and barrier exploration: Map and sample complex potential energy surfaces and barrier-crossing events.
• Protein–protein interactions and complexes: Study interactions and dynamics within protein complexes.
• Targeted biophysical process modeling: Model specific biophysical processes by simplifying irrelevant degrees of freedom.

Methodology:

SBMOpenMM constructs custom structure-based model force fields from protein structural information, maps them to OpenMM force objects, and executes molecular dynamics simulations using the OpenMM engine.