Hi Claudia, this is very convenient with PyMOL: http://pymolwiki.org/index.php/Rms_cur Cheers, Thomas On 06/19/2012 05:04 PM, Claudia Millán Nebot wrote: > Hello everyone :) > > I would like to know if it exist some tool that allows to calculate RMSD > between 2 pdbs that are identic, but just displaced in space. It should > not make a superposition, beause if this is the case it will just say > that RMSD is 0 . > I know is not such a difficult problem in terms of scripting, but i was > wondering if there are tools already. > > Claudia Millán ([log in to unmask] <mailto:[log in to unmask]>) > > Institut de Biologia Molecular de Barcelona (IBMB-CSIC) > > Barcelona, Spain -- Thomas Holder MPI for Developmental Biology Spemannstr. 35 D-72076 Tübingen