Thanks for the quick response! I downloaded the newer version of COOT, and it works perfectly now. Thanks for the help!
Brittney On Tue, Jul 26, 2011 at 1:16 PM, Paul Emsley <paul.ems...@bioch.ox.ac.uk>wrote: > I am trying to refine a protein-DNA structure, and I am having difficulties >> refining the DNA using COOT. I used the ccp4i Phaser program to molecular >> replace the protein and DNA simultaneously (there are solved crystal >> structures of the free protein and a similar DNA bound to another protein), >> but I am only able to manually refine the protein in COOT. If I try to >> refine the DNA, a window pops up with the following statement: No >> Restraints Found! Non-existent or minimal description of restrained >> residues. How do I create a non-minimal mmCIF dictionary for just the DNA? >> I am relatively new to crystallography and would appreciate any guidance. >> > > You don't mention which version you are using... > > I believe that if you use the current stable version of Coot (0.6.2) > refinement of DNA should "just work". > > It's less likely to work without effort if you use an old version. > > Paul. > > >