Dear all, I am now preparing my structure for deposition. The crystal diffracts to 3.0 A. R: 0.20; R free: 0.25. What I am concerned with is the Ramachandran plot; 83.5% in core region, 15.8% in allowed, 0.5 % in general allowed,0.2% in disallowed region. The model fits in density pretty well and all the attempts to improve Ramachandran have not been successful after quite a few trials. I am wondering if 83.5 % in core region is acceptable with 3.0 A resolution data? Moreover, is there some numeric correlation between diffraction resolution and model Ramachandran? Thank you for your help.
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