zhou jinming wrote: > I try to add the terminal residues such as, ACE or CT3,to the N-Term or > C-Term, but it always gave the error message, therefore, I come here for > help. I used the modeller9,and the "py" file I using for patch is as > following:

Your patches are incorrect. See http://salilab.org/modeller/9v1/manual/node23.html for an example.

You have:

> def special_patches(self, aln): > # Acetylate the N terminus > self.patch(residue_type='ACE', residues='1:') > # Standard C terminal patch > self.patch(residue_type='CT3', residues='238:')

This should be:

> def special_patches(self, aln): > # Acetylate the N terminus > self.patch(residue_type='ACE', residues=self.residues['1:']) > # Standard C terminal patch > self.patch(residue_type='CT3', residues=self.residues['238:'])

BTW, the standard C terminal patch is CTER, not CT3.

Ben Webb, Modeller Caretaker