On 27/07/12 13:43, Schubert, Carsten [JRDUS] wrote:

What are the current best practices for modified aminoacids? I have a peptide with and N-terminal Acetyl-proline which I am trying to model. The initial approach was to locate the aminoacid in the chemical components dictionary (N7P) and replace the residue in coot.

do the restraints specify that N7P is a non-polymer (in which case coot will treat it as such) or as an L-peptide?

Unfortunately the link to the next residue is not recognized, so the residue is just floating about.

Doesn't sound very much like how a L-peptide should behave to me...

Paul.