Dear All, Recently I generated a dataset of DNA protein complex. I built the DNA model with the simple mutate of nucleic acids, however when I tried to refine my structure, I came to the fatal error below with unknown bonded energy atom. (Similar to the phenix Tutorial 10: Generating ligand coordinates and restraints for structure refinement): Number of atoms with unknown nonbonded energy type symbols: 16 " N ABN A 246 " " C ABN A 246 " " C1 ABN A 246 " " C2 ABN A 246 " " C3 ABN A 246 " " C4 ABN A 246 " " C5 ABN A 246 " " C6 ABN A 246 " " N ABN A 247 " " C ABN A 247 " Further, Phenix.ready and Phenix.eLBOW were used to generated the restraints information, however nothing extra restraints information was got phenix.eLBOW. I assumed that the phenix.eLBOW recognized the nucleic acids from the coot “simple mutate” as compatible with Phenix but still I can’t use phenix.refine to refine this model.
So how can I force the phenix.eLBOW to generate the restraints? or is there any other software could be used to generate the cif file? Many thanks, Yurong