Thomas Goddard goddard at cgl.ucsf.edu
Mon Sep 29 16:58:42 PDT 2008

Hi Sudheer,

   If you have a monomer PDB model fit into the map you could display a 
zone around it


and save that part of the map to a file with volume dialog File / Save 
Map As....

   Or you could use volume eraser to erase everything but one monomer


   Or you could trace loops plane by plane, join them to form a surface 
using volume tracer


then use the mask command to extract the region within the surface


   Just knowing the 7-fold symmetry doesn't tell you the boundaries of 
the monomers.  There is currently no tool to simply extract a 1/7 wedge.


skmolugu at miners.utep.edu wrote:
> Hi,
> I have a CryoEM density map with 14 subunits with seven fold symmetry. Is there a way in chimera to separate only one subunit from the entire map.
> thanks,
> sudheer
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