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Re: [ccp4bb]: Alternate side chains..



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> Have people seen an improvement in R-factor and R-free following addition of 
> alternate sidechains to their structures ?
> Could you pl. share your experience since I dont see any change and I wonder 
> what's going on.

R and Rfree are not the most suitable statistics to judge the
addition of a handful of scatterers since they are global
statistics. see, e.g., the following papers:
- http://xray.bmc.uu.se/cgi-bin/gerard/reprint_mailer.pl?pref=32
- http://xray.bmc.uu.se/cgi-bin/gerard/reprint_mailer.pl?pref=37
- http://xray.bmc.uu.se/cgi-bin/gerard/reprint_mailer.pl?pref=56

--dvd

******************************************************************
                        Gerard J.  Kleywegt
    [Research Fellow of the Royal  Swedish Academy of Sciences]
Dept. of Cell & Molecular Biology  University of Uppsala
                Biomedical Centre  Box 596
                SE-751 24 Uppsala  SWEDEN

    http://xray.bmc.uu.se/gerard/  mailto:gerard@xray.bmc.uu.se
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