Molecular dynamics (MD) simulations often require targeted control or analysis of specific parts of a structure—for example, calculating forces on side chains, analyzing water clusters, or applying constraints to ligand atoms. GROMACS automatically generates standard atom groups (like Protein, Water,…

Designing DNA nanostructures is only half the task for molecular modelers interested in simulations. Once the geometry is ready, the challenge becomes how to export that design for computational analysis. If you work with coarse-grained molecular dynamics, you’re likely using…

In molecular modeling, clarity is key. Whether you’re presenting a simulation, building an educational video, or simply exploring complex biomolecular structures, drawing attention to specific components while minimizing distractions can greatly improve communication. One common challenge modelers face is how…

Setting up a coarse-grained (CG) system for molecular dynamics simulations can save time and computational resources, but comes with its own challenges. One such challenge — often overlooked by beginners — is related to how solvent molecules are added to…

When working on molecular simulations or structural rearrangements, animation workflows can become repetitive and time-consuming. A common challenge for molecular modelers is ensuring that once they achieve the right animation involving atom movements—for example, docking, simulated dynamics, or manual manipulation—they…

One of the constant challenges faced by molecular modelers is simplifying complex molecular scenes for presentations or animations. Whether it’s to highlight a reaction site, declutter overlapping strands, or direct attention to a specific structure, controlling visibility is a key…

Aligning molecular structures may sound simple, but anyone working at the atomic level knows that precision matters—whether you’re comparing docking poses, preparing figures, or building assemblies. If you’ve ever wrestled with rotating, translating, and centering molecules manually, this post is…

When exploring new molecules in drug discovery or materials science, seeing the molecule in 3D isn’t a luxury—it’s a necessity. However, for many molecular modelers, converting a generated 2D molecular structure (e.g., from a SMILES code) into its 3D counterpart…

When setting up a molecular dynamics simulation involving pulling or restraining specific molecular parts, having precise control over which atoms belong to which group is crucial. This is especially important in center-of-mass (COM) pulling simulations where specifying exactly which atoms…