[phenixbb] smaller the cell parameter of EM map

Pavel Afonine pafonine at lbl.gov
Fri Dec 28 23:30:51 PST 2018

Hi Wei,

cutting out a box with model and map around it may be a solution for 
your case. A tool for this is phenix.map_box or its GUI equivalent.


P.S.: phenix.real_space_refine does this internally so 'irrelevant' box 
size never affects runtime of refinement.

On 12/28/18 23:14, dancingdream at 163.com wrote:
> Dear all,
> The cell parameter of the EM map is always too large, which will make 
> the model building program running very slow.
> But in factor, the structure is a smal part of cell. So can I smaller 
> the cell parameter when I use phenix.map_to_structure_factors to 
> convert the EM map to mtz file.
> Thank a lot!
> Wei
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