On 3/12/10 5:51 AM, Baptiste Legrand wrote: > Is it possible to refine protein segments from a crystal structure using > modeller as we can do for models (but in this case, without providing > alignment and template files) ?

Certainly - Modeller simply takes a PDB file as input for loop refinement. This can be any PDB file - it doesn't have to be a Modeller model - it can be a crystal structure or model generated by another package.

Ben Webb, Modeller Caretaker