Hi JD,

Chimera 1.9 certainly minimizes disulfides okay if they're named CYS.  Chimera 1.10 seems to have a bug in this regard.  So try 1.9.  If that doesn't work, rename your residues to 1.9 and try again (setattr r type CYS :CYM).

--Eric

On Nov 7, 2014, at 8:36 AM, Jean Didier Pie Marechal <JeanDidier.Marechal@uab.cat> wrote:

Dear all,

I am trying to minimize a structure with a disulfide bond. My initial pdb has a CYM residue for amino acids involved in the bridge. Chimera correctly recognize the binding. But when entering the minimization run, chimera complains about the atoms of the cysteinate residues. Before sending you files I was just wondering if this is something that is not implemented in chimera or a problem on how I prepare my structure.

Best regards,

JD

_______________________________________________
Chimera-users mailing list
Chimera-users@cgl.ucsf.edu
http://plato.cgl.ucsf.edu/mailman/listinfo/chimera-users