[Chimera-users] Named selection for subset of markers

Elaine Meng meng at cgl.ucsf.edu
Mon Dec 8 10:50:12 PST 2008

Hi Giovanni,
I can't tell what you did from what you said.

The proper procedure is to first select those markers or atoms, then  
name the selection.  Then later you can use that name either in the  
Select menu to make those markers or atoms selected again, or in the  
command line, which would just perform the command on those markers  
but not make them selected again.

In my tests (Dec 7 build) this works fine.  I don't have markers  
handy, so here is an example with atoms.  With markers you could take  
a different approach to select them in the first place, but the  
remaining steps would be the same.

open 1zik
select @ca
     (or use Select menu to select some set of atoms,
      or Volume Tracer or interactive picking to select markers)
namesel alphacarbs
     (or use Select... Name Selection to give that current selection a  

[...now you could clear or change the selection...]

rep sphere alphacarbs
     (or use Select... Named Selections... alphacarbs  to regenerate  
the selection,
      then do something to it with the Actions menu)

I hope this helps,
Elaine C. Meng, Ph.D.                          meng at cgl.ucsf.edu
UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab
Department of Pharmaceutical Chemistry
University of California, San Francisco

On Dec 8, 2008, at 10:32 AM, Giovanni Cardone wrote:

> Hi all,
> I am trying to save a selection of a subset of markers as a named
> selection. However, the named selection results empty: is it a normal
> behavior?
> I am using Chimera version 1 build 2552.
> Thanks in advance,
> Giovanni

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