Finding the right atoms or residues can interrupt an otherwise straightforward modeling task. You may know what you want—such as lysines in one chain or side chains near a ligand—but translating that idea into a precise selection takes time. In…

A molecular animation can be scientifically clear and still be difficult to watch if the camera drifts away from the feature you want people to follow. Reframing between shots may help, but during an animation the camera’s position and its…

When a molecular modeling task stalls, the problem is not always the structure. Sometimes the challenge is finding the right tool—or realizing that a different interaction tool is currently active. SAMSON editors respond to user input, such as mouse and…

A molecular trajectory can contain many frames, and choosing one frame as the reference may hide the relationships you care about. Two distant parts of a path might adopt similar conformations, while neighboring frames may differ during a transition. A…

A molecular model can contain all the information you need and still be hard to read. When chains, residues, and atoms share one default appearance, it is difficult to spot where one part ends and another begins—or to see how…

Docking a ligand library can turn a long list of compounds into a manageable set of poses to inspect. But the calculation is only as useful as its setup: inconsistent ligand structures, an oversized search region, or results that are…

A protein structure can look perfectly reasonable on screen and still be a poor starting point for docking or simulation. Alternate atom positions, missing atoms, unresolved loops, or unsuitable protonation can all complicate downstream work. The key is to distinguish…