When preparing systems for molecular simulations using coarse-grained (CG) models, researchers often face a common hurdle: how to efficiently replicate molecular structures—such as proteins—multiple times with unique chain and residue identifiers, all while keeping the system organized for tools like…

Molecular animations are a central part of communicating molecular behavior, structure, and dynamics. Whether you’re preparing a scientific presentation, an educational video, or simply making your simulations more engaging, having clear visual tools to illustrate your data can help others…

Before launching molecular dynamics simulations, there is a critical preprocessing step that often gets overlooked: energy minimization. This step is key to ensuring that your molecular system is stable and realistic enough to proceed with confidence. But why is it…

Following atomic motion during a simulation can reveal a great deal about molecular mechanisms, such as how a ligand unbinds from a protein or how internal domains move collectively. Yet, for molecular modelers, focusing on individual atom trajectories can be…

One of the common frustrations in molecular modeling is having to stop and manually reassign bonds and atom types every time you make a structural edit. Whether you’re building a new molecule, modifying a reaction intermediate, or fine-tuning a structure,…

When working with large macromolecular assemblies like viral capsids or multimeric enzymes, identifying the correct symmetry group can be crucial. But what if your structure seems to support several possible symmetries? This is a common situation in molecular modeling. For…

When you’re creating animations of molecular systems, even the smallest unintended camera shift can disrupt the story you’re trying to tell. Have you ever carefully crafted a molecular animation, only to find your view angle jumping between frames—even when you…

When preparing coarse-grained (CG) molecular dynamics (MD) systems—especially with force fields like MARTINI—you might run into unexpected instabilities during equilibration or production runs. A common underlying cause? Forgetting to neutralize the system or set the proper ionic conditions. Fortunately, GROMACS…

If you work in molecular modeling, you’ve likely faced the challenge of simulating multiple states or conformations of the same molecular system. Maybe you generated a trajectory from a docking animation, or you explored conformational changes using normal mode analysis.…