[phenixbb] anisotropy and mtz edit

Pavel Afonine PAfonine at lbl.gov
Tue May 4 07:52:31 PDT 2010

Hi Leonid,

phenix.refine does anisotropic scaling as described here:

A robust bulk-solvent correction and anisotropic scaling procedure.  P. 
V. Afonine, R. W. Grosse-Kunstleve and P. D. Adams  Acta Cryst. D61, 
850-855 (2005).

I would be interested to revisit this problem at some point: could you 
please send me (to my email): data before and after anisotropy 
correction, and best current model so I can see effect on the maps. I 
can't promise to do anything right now, but I'm collecting the cases so 
I have a handful of examples the moment when I'm ready to work on it.


On 5/4/10 7:08 AM, Leonid Sazanov wrote:
> Hi, with highly anisotropic data we use Mark Sawaya's anistropy 
> correction server, which works very well for electron density 
> calculations.
> For refinement, we would like to use original data, but still cut to 
> different limits over a,b,c (like 3.9 3.4 3.2 A, for example).
> Is there any facility for that in Phenix, and if not, can it be 
> implemented?
> I know anisotropic scaling itself is done in Phaser, but would be 
> useful also to have a possibility to cut resolution limits differently 
> in any mtz file.

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