Hello,

I have a problem with a ligand made in the ccp4 program sketcher. The ligand has good geometry and a library description - dictionary, has been created called aln_mon_lib.cif together with
structure as aln-libcheck.pdb.

The dictionary has been read in coot as Import cif dictionary.
The coordinates have been read in coot.

Even though when trying to regularise the ligand or do real space refinement of the ligand it can not find the atom names of the ligand. Also it is not possible to edit chi angles although all angles appear but
it is not possible to get any fragments to rotate.

I have tried to use smiles to build it with new atom names but since it is partially a sugar it is difficult to get the chiral centers correct
by starting from scratch.

Thankful for any explanation.

/Maria


Maria HÄkansson, PhD, MAX-lab Crystallization Facility Manager
Senior Scientist

SARomics Biostructures AB
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