Re: [PyMOL] Reading CCP4 maps

[Robert C. <rl...@k2...>]

Quyen,

* Quyen Hoang <ho...@mc...> [2002-09-05 15:32] wrote:
> I would like to read CCP4 electron-density maps into PyMol, but I don't
> know how (explore maps loaded fine). Would someone please give me a quick
> summary of the procedure.
> Thank you!

simply doing:

  load mapfile.ccp4, map_object_name

will load the map, but if the filename doesn't end in '.ccp4', then you'll
need to specify that it is CCP4 format with something like:

  load mapfile.ccp4_map, map_object_name, 1, ccp4

Then you'll want to display it with a similar sort of isomesh command
that you would have used for the xplor map.

  isomesh mesh_object_name, map_object_name, contour level, selection, radius

The on-line manual describes this pretty clearly (in fact, probably
better than I have!):

  http://pymol.sourceforge.net/html/S0400xtal.html

Cheers,
Robert
-- 
Robert L. Campbell, Ph.D.               http://biophysics.med.jhmi.edu/rlc
rl...@k2...                                    phone: 410-614-6313
Research Specialist/X-ray Facility Manager
HHMI/Dept. of Biophysics & Biophysical Chem., The Johns Hopkins University
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