On 4/27/15 4:34 AM, Ming Tang wrote: > I modified the top.lib to include the information of HYP, and added the > following line in restyp.lib. > > HETATM | HYP | O | | HYP | hydroxyproline
It sounds like you added this to the start of restyp.lib. The first 21 residue types in this file are "special" - they are the standard amino acids plus a gap - and shouldn't be altered. Add your residue type to the end of the file instead.
Ben Webb, Modeller Caretaker