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CHARMM-GUI 10 years for biomolecular modeling and simulation.

Sunhwan Jo¹, Xi Cheng², Jumin Lee³

¹Leadership Computing Facility, Argonne National Laboratory, 9700 Cass Ave, Argonne, Illinois.

Journal of Computational Chemistry

|November 19, 2016

Summary

CHARMM-GUI is a web-based tool that simplifies complex biomolecular simulations by generating input files for various software. It offers modules for building diverse molecular systems, aiding in advanced molecular modeling and understanding biomolecular dynamics.

Keywords:

Coarse-grained simulation Glycan Membranes Protein-ligand interactions mmCIF

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Area of Science:

Biomolecular simulations
Computational chemistry
Molecular modeling

Background:

CHARMM-GUI is a widely adopted web-based graphical user interface developed in 2006.
It facilitates the preparation of complex biomolecular systems for molecular simulations.
The tool generates input files for numerous simulation programs like CHARMM, NAMD, GROMACS, AMBER, and others.

Purpose of the Study:

To review the capabilities of CHARMM-GUI in preparing biomolecular systems for simulations.
To highlight newly integrated modules for enhanced simulation setup.
To discuss future directions for CHARMM-GUI development.

Main Methods:

Utilizes a modular design for diverse simulation system preparation.
Includes modules for reading/modifying molecules (PDB Reader, Glycan Reader, Ligand Reader).
Offers builders for all-atom (Membrane Builder, Nanodisc Builder) and coarse-grained systems (PACE CG Builder, Martini Maker).
Provides tools for implicit solvent calculations (Implicit Solvent Modeler) and experimentally guided simulations (DEER Facilitator).
Incorporates new modules like Glycolipid Modeler and LPS Modeler for specialized structures.

Main Results:

CHARMM-GUI supports a broad range of simulation types and environments.
New modules enhance the ability to model complex structures like glycolipids and lipopolysaccharides.
The platform integrates tools for various simulation needs, from basic setup to advanced calculations.

Conclusions:

CHARMM-GUI effectively facilitates advanced molecular modeling and simulation.
The continuous development and integration of new modules improve the understanding of biomolecular systems.
The tool is expected to advance research in structural and dynamic analysis of complex biological molecules.