[Chimera-users] Generated density maps

Tom Goddard goddard at cgl.ucsf.edu
Wed Dec 10 09:44:53 PST 2008

Hi Maya,

  The MRC format is almost identical to the CCP4 map format.  Most 
software that expects a CCP4 map will have no trouble reading an MRC 
map.   The main difference is in how they specify the positioning of the 
map.  The MRC map written by Chimera may not align with the PDB if 
opened in a program that is expecting a CCP4 map.  (I suspect it will 
align in most other programs.)


maya shcushan wrote:
> Hello,
> I generated a density map of 8A resolution from a PDB file. I would 
> like to save the map in CCP4 format, but Chimera only allows me to 
> save it in  .mrc, .nc, .cmap and .brix format.  IS there any way to 
> save it in .ccp4 format, supported by chimer?
> Thanks,
> Best,
> Maya Shuchsan, Tel-Aviv University
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