Dear Modeller This is with reference to the python file *** examples/commands/patch_disulfides.py<http://salilab.org/modeller/examples/commands/patch_disulfides.py>i am building a model with two disulphide bridges position: *138 CYS -> 152 CYS 198 CYS -> 209 CYS where as the python file contains example for one disulphide bridge, how can i edit the file or there is any other procedure to solve this problem. Should i use above mentioned py file or patch.py for assigning developing disulphide bridge. Regards -- MUSTAFA BUGHIO Junior Research Fellow Lab # P-133 Computational Medicinal Chemistry and Drug Design Panjwani Center For Molecular Medicine and Drug Research, International Center for Chemical Sciences, University of Karachi, Karachi 75270 Pakistan, +923313425010