Filtering Molecular Backbones by Atomic Composition in SAMSON

Molecular modelers often need to filter structural elements based on their atomic composition. Whether you’re studying peptides, coarse-grained models, or large macromolecular complexes, being able to select parts of molecules that meet specific atom count criteria can save time and…

Revealing Protein Interfaces with Symmetry Mates in SAMSON

When working with protein structures from the Protein Data Bank (PDB), researchers commonly analyze individual asymmetric units. However, much of the biological function and structural insight lies beyond the asymmetric unit — in the full biological assembly. These complete assemblies…

Choosing the Best Unit Cell Shape in GROMACS Simulations

When setting up molecular dynamics simulations using GROMACS, one common but often confusing step is defining your system’s boundary conditions. Molecular modelers frequently ask: Which unit cell shape is best for my system?. This blog post explores this issue and…

Making Molecular Visualizations Easier with Custom Visual Presets in SAMSON

In molecular modeling, a common challenge is consistently generating clear, informative visualizations—especially when dealing with complex systems such as protein-ligand complexes, solvated structures, or multi-chain systems. Adjusting representations, selecting relevant atoms or molecules, setting color schemes, and choosing visualization models…

Switching Between Molecular Projects Without Losing Context

For many molecular modelers, juggling multiple molecular systems during a modeling session is the norm, not the exception. Whether you’re comparing ligand binding modes, transferring fragments between structures, or running simulations on several conformations, managing multiple files effectively can be…