When comparing protein structures, overall alignment using root-mean-square deviation (RMSD) is often the first go-to method. But what if you’re only interested in a particular region of a protein? Maybe the active site, a conserved domain, or an alpha-helix that’s…

When working with complex molecular systems, switching between different parts of your structure can quickly become time-consuming. Whether you’re analyzing a protein-ligand interaction, inspecting water molecules, or comparing different regions of a macromolecular complex, jumping between selections can feel a…

One of the challenges molecular modelers often face when creating scientific presentations or molecular animations is the need to gradually hide parts of their models—without having them abruptly vanish. Whether preparing educational content, highlighting results in a collaborative setting, or…

When preparing molecular simulations with GROMACS, reaching the desired temperature during the NVT (constant Number of particles, Volume, and Temperature) equilibration phase can be trickier than expected. If your system doesn’t stabilize at the target temperature, everything downstream—like NPT equilibration…

When preparing molecular animations, one challenge often faced by modelers is how to clearly convey structural changes without cluttering the scene. Sometimes, the best way to highlight what’s important is to temporarily hide what’s not. The Hidden animation in SAMSON…

One of the most common friction points in performing reliable molecular dynamics (MD) simulations is setting up input files correctly for production runs. Whether you’re working with batch jobs or single simulations, one misstep when defining inputs—like pointing to an…

Understanding the dynamics of biological macromolecules like proteins is crucial for many molecular modeling applications, from drug design to structural biology. One common pain point? Visualizing and simulating conformational transitions between different functional states of a protein — especially when…

For many molecular modelers working with GROMACS, defining custom index groups is a familiar but often tedious task. Whether you’re preparing complex systems or performing steered molecular dynamics, accurate grouping of atoms, residues, or chains is essential. One particularly common…

When preparing coarse-grained (CG) molecular systems for molecular dynamics (MD) simulations, one crucial step is the addition of ions. This step ensures charge neutrality and mimics physiological conditions. However, it’s easy to encounter unexpected issues—especially when working with CG models—if…

Whether you’re analyzing molecular dynamics, building neural network models for protein folding, or integrating your own Python toolkits, managing your Python packages efficiently is essential. Unfortunately, for many computational scientists, package installation can be frustrating. Switching between environments, worrying about…