CHARMM-GUI Multicomponent Assembler for modeling and simulation of complex multicomponent systems
Nathan R Kern1, Jumin Lee2, Yeol Kyo Choi2
1Department of Computer Science & Engineering, Lehigh University, Bethlehem, PA, USA.
Nature Communications
|June 27, 2024
Summary
CHARMM-GUI
Area of Science:
- Computational biology
- Molecular modeling
- Biophysics
Background:
- Atomic-scale molecular modeling is crucial for computational biology.
- Complex molecular assemblies pose challenges for current modeling tools.
- Existing methods lack support for periodic boundary conditions (PBC).
Purpose of the Study:
- To introduce Multicomponent Assembler in CHARMM-GUI.
- To automate complex molecular assembly and simulation input preparation.
- To enable simulations under periodic boundary conditions (PBC).
Main Methods:
- Development of Multicomponent Assembler within CHARMM-GUI.
- Automated construction of complex molecular systems.
- Preparation of simulation inputs compatible with PBC.
Main Results:
- Demonstrated versatility with 6 challenging systems.
- Successfully prepared systems including proteins, membranes, polymers, and nanomaterials.
- Enabled assembly of systems with varying densities and non-water solvents.
Conclusions:
- Multicomponent Assembler simplifies complex molecular assembly.
- The tool supports diverse systems under periodic boundary conditions (PBC).
- It serves as a cyberinfrastructure for studying multi-component interactions.
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