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.
>
>
>

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