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…

A pressure plot that swings dramatically can make it hard to tell whether an NPT equilibration is working. The key is not to treat every pressure fluctuation as a verdict on the simulation. In this step, the practical question is…

Few things interrupt a molecular modeling workflow like acting on the wrong nodes. You type a residue name, press Enter, and discover that the selection includes more than the residues you intended. Or you find the right ligand and receptor,…

You add a SAMSON Extension through SAMSON Connect, open your molecular modeling workspace, and… nothing seems to have changed. It is a frustrating moment, especially when you are ready to use a specific tool. But an extension may be installed…

Building a molecular system with several copies of the same protein can seem straightforward: duplicate a chain, move the copies apart, then generate a coarse-grained model. But there is a small bookkeeping step that can make a big difference. If…

A molecular model can be ready to review, but getting it to the right people is a separate task. Sending a file without explaining who can use it—or how they can find it—can add friction to a collaboration. SAMSON Connect…

A distance or angle can look clear at one zoom level and become hard to read at another. And when atoms move during editing or minimization, a measurement copied from an earlier view may no longer describe the structure on…

A molecular structure can look ready for simulation and still contain details that complicate preparation: alternate atom locations, waters you do not need, small molecules without topology parameters, or monatomic ions left over from the structure. Removing everything that looks…