MkVsites

MkVsites generates GROMACS virtual site parameters to enable longer timesteps in all-atom molecular dynamics simulations.

Key Features:

• Virtual Site Parameter Generation: Automates derivation of GROMACS virtual site parameters, including angle constraints and dummy constraints, for input topology files (itp/rtp).
• Broad Applicability: Extends virtual site parameterization beyond the 20 standard amino acids to virtually any molecule in a simulation.
• Python-based Automation: Implemented as a suite of Python tools that leverages existing force field data to generate virtual site parameters automatically.

Scientific Applications:

• Extended-timestep molecular dynamics: Enables longer timesteps in GROMACS all-atom MD to increase sampling efficiency while maintaining force field-based accuracy.
• Non-standard molecule simulations: Applies virtual sites to non-standard residues and other molecules to permit timestep extension for diverse chemical entities.
• Biochemistry, pharmacology, and materials science: Facilitates longer and more extensive atomic-level simulations in fields that require detailed molecular interaction analysis.

Methodology:

Leverages existing force field data to automatically derive virtual site parameters (including angle and dummy constraints) for itp/rtp topology files and produces parameters compatible with GROMACS virtual site implementations.