[phenixbb] Refinement Problem

Nathaniel Echols nechols at lbl.gov
Wed Jan 12 14:22:59 PST 2011

On Wed, Jan 12, 2011 at 2:15 PM, Kelly Daughtry <kddaught at bu.edu> wrote:
> The standard question here is: Are you certain of your space group? That
> seems to be the main culprit behind R factors that wont decrease.

Other common culprits:

1. Twinning
2. Undiagnosed translational pseudosymmetry (leading to incorrectly
processed data)

Xtriage will help identify space group/twinning problems.  To check
for (2), run labelit.index on the original images.


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