I have a program that would calculate the limits of the protein along it's axes of inertia (besides doing many other things). If you are interested, please let me know. Thanks Abhinav JCSG@SSRL Phone: (650) 926-2992 Fax: (650) 926-3292 Francois Berenger wrote: > Hello, > > Is there a ccp4 tool to find automatically the smallest virtual > orthogonal "box" that contain a given PDB ? > > Even if your favorite tool is not part of ccp4, I would be happy > to know about it. ;) > > Thanks, > Francois. >