- Protein crystallography
Main steps: - Protein purification - Crystallisation
Special: - Programs for crystallography - X-ray detectors
Basic tutorials: - Chemistry - Protein - Peptide - Amino Acids
Xtal community: - CCP4BB
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Subject: Why NCS doesn't help? From: Sun Tang suntang2222 {- at -} YAHOO {- dot -} COM Date: 2009-07-03
Dear All,
In refining my structure (two molecules in au) that was solved with molecular replacement, refinement starting with restrained lowered the R-free to about 0.35 while with NCS increased the R-free to 0.55. Does it imply that two molecules are quite different or something wrong with the refinement?
Thank you very much for your suggestions?
Best wishes,
Sun Tang
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