MOLEMAN from the Uppsala Software Factory by Gerard Kleywegt of course It is easy as to say " Do it!" FF Dr Felix Frolow Professor of Structural Biology and Biotechnology Department of Molecular Microbiology and Biotechnology Tel Aviv University 69978, Israel Acta Crystallographica F, co-editor e-mail: [log in to unmask] Tel: ++972-3640-8723 Fax: ++972-3640-9407 Cellular: 0547 459 608 On Apr 8, 2011, at 14:17 , krishan wrote: > Dear CCP4BB members, > We are using a script written in python to generate symmetry mates for a given pdb file using PYMOL. After generating symmetry mates we want to combine all the symmetry molecules in a single PDB file with all the chains having unique chain IDs. Since all the symmetry mates have same chain ID's I was wondering if some one knows a script that can give unique chain ID for each symmetry mate. We are interested in script because that dataset that we are handling is large. > I thank you all in advance for your help. > Best, > > Krishan