Hello All,
I refined a structure with Refmac in CCP4i and the R/Rfree is 0.215/0.277. The
difference between R and Rfree is too much even though I used 0.01 for
weighting term in the refinement (the default value is 0.3). The RMSD for bond
length and bond angle is 0.016 A and 1.7 degree.
What may be wrong with the over-refined structure? What is the reason for
leading to an over-refined structure? How to avoid it?
Best wishes,
Sun Tang
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