alternate conformation clashes with its symmetry mate
Dear phenix BB, I am having an alternate conformation clashing problem that I am having difficulty resolving: I have a protein in which the N-terminal residue is in two conformations.When the residue is in the 'A' conformation, the sidechain overlaps with the 'A' conformation sidechain density of its symmetry mate. I have modeled the occupancy at 50%. However, every time I refine, phenix pushes the 'A' conformer out of the density, likely due to clashing with its symmetry mate. Is there anyway to get around this? Thanks in advance, Rebecca
On Fri, Apr 13, 2012 at 5:01 PM, Page, Rebecca
I have a protein in which the N-terminal residue is in two conformations.When the residue is in the 'A' conformation, the sidechain overlaps with the 'A' conformation sidechain density of its symmetry mate. I have modeled the occupancy at 50%. However, every time I refine, phenix pushes the 'A' conformer out of the density, likely due to clashing with its symmetry mate.
Is there anyway to get around this?
I think this is what the parameter "custom_nonbonded_symmetry_exclusions" is for - it specifies an atom selection for which to turn off these interactions. -Nat
Thanks,
It worked perfectly.
On Fri, Apr 13, 2012 at 8:48 PM, Nathaniel Echols
On Fri, Apr 13, 2012 at 5:01 PM, Page, Rebecca
wrote: I have a protein in which the N-terminal residue is in two conformations.When the residue is in the 'A' conformation, the sidechain overlaps with the 'A' conformation sidechain density of its symmetry mate. I have modeled the occupancy at 50%. However, every time I refine, phenix pushes the 'A' conformer out of the density, likely due to clashing with its symmetry mate.
Is there anyway to get around this?
I think this is what the parameter "custom_nonbonded_symmetry_exclusions" is for - it specifies an atom selection for which to turn off these interactions.
-Nat _______________________________________________ phenixbb mailing list [email protected] http://phenix-online.org/mailman/listinfo/phenixbb
participants (2)
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Nathaniel Echols
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Page, Rebecca