On 21/09/2023 22:25, Kelvin Lau wrote:
Hi Eleanor

Thanks for catching that..

I was under the impression that when I am fetching the monomer, MDO, it was defined as a peptide, not a non polymer … at least that’s what is listed here: https://www.rcsb.org/ligand/MDO

I guess I have to go about as Paul suggested as changing it to “peptide”

Is an alternative using the PDB MDO cif file as the restraint as it is properly defined and replacing the original definition?


Well....

CCD cifs don't have _chem_comp.group and CCP4 Monomer Library entries don't have _chem_comp.type. What an interesting situation. Maybe this has already been addressed by the latest and greatest Acedrg? I imagine that Keitaro has his finger on the pulse of this predicament - much more than I do. Let's see what he has to say.

If I understand your question correctly, then no... CCD dictionary cifs don't have restraints.

Regards,

Paul.

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