When studying protein dynamics, researchers often encounter an important question: how do we realistically interpolate between two known conformations of a protein structure? Whether you’re setting up umbrella sampling simulations or exploring conformational transitions for molecular docking, creating a smooth…

When designing new drug candidates or optimizing a lead compound, molecular modelers often face the challenge of evaluating how small chemical modifications affect binding affinity, selectivity, or physicochemical properties. One effective approach to address this is positional analogue scanning, where…

When running umbrella sampling simulations in molecular modeling, one key concern is ensuring sufficient sampling across the entire reaction coordinate space. Without even coverage, results from Potential of Mean Force (PMF) calculations may be misleading or incomplete. This is where…

Setting up molecular simulations in GROMACS often involves intricate configuration. One commonly overlooked step that can save time and add flexibility is defining custom index groups. If you’ve ever scrolled through a sea of atoms and residues to define simulation…

Molecular modelers working with coarse-grained (CG) force fields know that preparing a CG system in GROMACS can be a tricky and time-consuming process. The need to manually process topology files, create solvent environments, define boxes, and manage ions can become…

Getting started with molecular modeling can be overwhelming—especially when it comes to setting up interactive simulations. A recurring challenge for researchers, educators, and students alike is simply launching their first simulation to see how their molecule moves, reacts, or relaxes…