Creating Custom Atom Selection Groups in GROMACS Using SAMSON

When setting up a molecular system for simulation in GROMACS, atom group selections—known as index groups—play an important role in defining regions for restraints, analysis, and advanced sampling techniques like umbrella sampling. While GROMACS automatically generates standard index groups (e.g.,…

When ChatGPT Writes Your Python Scripts for Molecular Modeling

One of the most time-consuming and repetitive tasks in molecular modeling is scripting. Whether you want to automate structure manipulation, calculate properties, or build custom GUIs, scripting remains essential—but not always straightforward. For many users, the hurdles range from not…

Running GROMACS Simulations in the Cloud without the Setup Stress

For molecular modelers, one recurring challenge is ensuring enough computational power to run molecular dynamics simulations efficiently. This becomes especially pressing when working with large systems or when comparison between multiple parameter combinations is needed. Local machines often fall short,…