Hello Sudhir,

In coot, go to the
"Calculate" menu, select "Other Modelling Tools" and in the upcoming window
choose "add OXT to residue"

Tim


On Tue, Apr 13, 2010 at 04:03:27PM +0900, Sudhir Kumar wrote:
> hi all,
> I'm refining a structure in which cysteine is bound to the active site as a
> ligand. I can see a good electron density for the ligand but it is showing
> only one oxygen in carboxy terminus. could any one tell me how to add
> another oxygen there. For refence i'm attaching a snapshot here.
> thanks in advance
> 
> -- 
> Sudhir Kumar
> Research Scholar
> Structural Biology Laboratory
> SLS, JNU,
> New Delhi-110067



-- 
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Tim Gruene
Institut fuer anorganische Chemie
Tammannstr. 4
D-37077 Goettingen

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