Hi Rebecca,

  Here's a crazy trick to see atoms in structure #1 that are not in structure #0.

    ~display #0
    display #1
    mcopy #0 #1 set v

This hides all the atoms of #0, displays all the atoms of #1, then copies the visibility of atoms in #0 to matching atoms in #1.  In other words it undisplays just the atoms of #1 that have mates in #0. 

You could abbreviate this command sequence

    alias ^diff ~display $1 ; display $2 ; mcopy $1 $2 set v

then use

    diff #0 #1
    diff #1 #0

Here is the mcopy documentation

    http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/mcopy.html

  Tom


On Apr 11, 2013, at 2:46 PM, Rebecca Swett wrote:


Hi guys, I have a question, I have two structures that are different by just a few atoms. Is there any way I could use the selection tools in chimera to find them and display them?

Hi Rebecca,
	In the general case I don't have any good ideas.  If your two structures have consistent residue naming and numbering then it isn't too hard to do in Python.  In case your structures have consistent nomenclature, I have appended a script that will print the differences to the reply log and select the differences on the structures.  You run the script simply by opening it with File->Open.

--Eric





_______________________________________________
Chimera-users mailing list
Chimera-users@cgl.ucsf.edu
http://plato.cgl.ucsf.edu/mailman/listinfo/chimera-users