Yes, Nat is right. Starting with the latest version 5.7 (that is part of ccp4) refmac makes sure that it uses correct set for free reflections. Hopefully it will remove some of the confusions when switching from one software to another. refmac 5.8 version should definitely have this feature. This version with some bug fixes and feature additions can be found from this page;
http://www2.mrc-lmb.cam.ac.uk/groups/murshudov/ This version should be available from the next ccp4 update. Garib On 24 Jan 2013, at 18:36, Nat Echols wrote: > On Thu, Jan 24, 2013 at 10:34 AM, Leonid Sazanov > <saza...@mrc-mbu.cam.ac.uk> wrote: >> Most likely scenario is that Phenix by default assigns Rfree flag as 1, >> while ccp4/refmac - as 0. >> That would explain your Rfree going down - because your Rfree reflections >> were refined by refmac. > > According to Garib, the current version of Refmac will automatically > switch to the proper flags, so this problem should go away. > > -Nat Dr Garib N Murshudov Group Leader, MRC Laboratory of Molecular Biology Hills Road Cambridge CB2 0QH UK Email: ga...@mrc-lmb.cam.ac.uk Web http://www.mrc-lmb.cam.ac.uk
