[phenixbb] hydrogens in low resolution structure refinement

Stefanie Krieg stefanie.krieg at uni-konstanz.de
Fri Nov 16 06:31:20 PST 2007

Dear all!

I am refining two structures at 3.0 and 2.7 A. In some older threads on 
this board I found that you recommended adding hydrogens to the pdb file 
even at this resolution. I tried that (adding hydrogens with reduce and 
refine with riding hydrogens) but inspite of what I read in your 
postings, my R-Factors went up by 1% (not down as was predicted).
Are there any other keywords which could be changed or do you have any 
other ideas why this could be?

Thanks in advance!
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