Author: OneAngstrom

A path can be easy to understand on screen and surprisingly awkward to use in a simulation workflow. You may see a ligand move through a protein, but downstream analysis often needs the coordinates at each step—not just an animation.…

Preparing several copies of the same protein in one structure can seem straightforward: duplicate a chain, move the copy, and run coarse-graining. But duplicated chains may retain the same residue and chain identifiers. Those repeated identifiers can cause problems when…

Finding a residue in a large molecular model can be harder than it sounds. A sequence tells you where a residue sits in a chain, while the 3D structure shows where it sits in space. Switching between those views can…

A molecular structure can be positioned exactly where you want it and still be awkward to present. Perhaps the current view is too low to follow a feature, or you want to reveal more of the system without changing the…

A molecular structure can look plausible and still contain strained geometry or awkward contacts. Before simulation or interactive modeling, that can leave you spending time watching a structure adjust when you would rather get to the next step. Geometry optimization…

A molecular structure can contain exactly the information you need—and still be difficult to read. Atoms, chains, ligands, water molecules, and multiple representations can compete for attention in the viewport. The goal is not simply to make the structure look…

A protein–protein docking run can produce a long list of poses—and take longer than expected—when the search explores orientations that biology has already made unlikely. But narrowing the search too aggressively can hide a plausible binding mode. The practical challenge…