Hi Joel,

from http://www.phenix-online.org/version_docs/dev-1439/CHANGES :

- Local RSR: residue-by-residue, replaces old fix_rotamers option
  - fits both main chain and sidechain
  - only applies to residues with rotamer outlier, poor CC, or clashes
  - new residue fit serves as torsion restrains for subsequent macro-cycle
  - currently not performed when explicit hydrogens present

To turn this off simply exclude real-space refinement from refinement strategy.

Note, RSR above means Real-Space-Refinement, and not Reciprocal-Space-Refinement.

Pavel


On 7/22/13 9:33 AM, Joseph Noel wrote:
Dear Pavel,
To clarify, in the latest nightly build, 1435, do you have to click on real space refinement to carry out side chain rotamer fitting? If you just refine xyz I assume side chain rotamer fitting is not enabled, correct?
Joe Noel