Re: [ccp4bb] about comparing Rwork and Rfree factors of different refinement trials

2010-03-01 Thread Eleanor Dodson
gbirr...@bidmc.harvard.edu Betreff: RE: [ccp4bb] about comparing Rwork and Rfree factors of different refinement trials An: j.scho...@yahoo.de Datum: Donnerstag, 25. Februar, 2010 17:12 Uhr * * * *You can fix the TLS parameters as well. * *Zero cycles of Refmac and fixed TLS*

Re: [ccp4bb] about comparing Rwork and Rfree factors of different refinement trials

2010-02-26 Thread Dirk Kostrewa
.2010: * * Von: gbirr...@bidmc.harvard.edu Betreff: RE: [ccp4bb] about comparing Rwork and Rfree factors of different refinement trials An: j.scho...@yahoo.de Datum: Donnerstag, 25. Februar, 2010 17:12 Uhr * * * *You can fix the TLS parameters as well. *

Re: [ccp4bb] about comparing Rwork and Rfree factors of different refinement trials

2010-02-25 Thread Robbie Joosten
converged refinement, you can (e.g.) just do a 0-cycle run of restrained refinement in Refmac with fixed TLS tensors (if applicable). Cheers, Robbie Joosten Date: Thu, 25 Feb 2010 14:38:02 + From: j.scho...@yahoo.de Subject: [ccp4bb] about comparing Rwork and Rfree factors of different

Re: [ccp4bb] about comparing Rwork and Rfree factors of different refinement trials

2010-02-25 Thread Dirk Kostrewa
Dear Jan, an initial increase in Rfree usually means, that either, in case of isomorphous crystal forms, the structure was refined before against a different test set, or, in case of completely different crystal forms, that you have a new test set. In both cases, Rwork and Rfree for the initi

[ccp4bb] about comparing Rwork and Rfree factors of different refinement trials

2010-02-25 Thread Jan Schoepe
Dear all, I do have a question about comparing Rfree and Rwork factors of different refinement trials whereas I always started with the same pdb file and structure factors (phasing by MR). Means I had a protein structure which was (not just by me) refined several times in different ways also wi