Your cif file does label it as a peptide? Look at the top of the cif file - By default most unusual things get flagged as non-peptides..
Eleanor On Mon, 25 Jul 2011 10:29:52 +0200, Daniel Mattle <[email protected]> wrote: > Dear all, > > I imported a cif file for an unusual amino acid and used then extensions > -> modelling -> replace residue to introduce this amino acids instead of an > asp. > > Unfortunately, the residue seems to be treated as a new chain and > disconnects it from the original molecule. > > Has anybody experiences to get around with that, so that I really do a > mutation of the asp residue instead of introducing a ligand? > > Thanks a lot, > > Daniel
