New versions of Coot use the new dictionary. Now PCA is defined as P-peptide, previously it was L-peptide. Editing PCA.cif to use L-peptides for links should do the trick.

Hope this helps,

B

I am currently using COOT 0.7-pre-1-831.
For some reason when I add an N' PCA residue it won't connect to the main-chain 
and the real space refinement will not position it well.
Adding an N' PCA is working just fine with previous versions of COOT (i.e. COOT 
0.6).
Any thoughts?
Thanks,
Ron






--
***************************************************

Dr. Bernhard Lohkamp
Assistant Professor
Div. Molecular Structural Biology
Dept. of Medical Biochemistry and Biophysics (MBB)
Karolinska Institutet
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Sweden

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