[Chimera-users] How to select whole molecule ?

[Elaine Meng]

Hello Marek Maly,
If you already have the one atom selected, you can press the up arrow key (on the keyboard) to expand the selection to whole residue, then again for the whole chain, then whole molecule model.  Depending on the structure, there may be fewer layers; for example, the whole chain may be the same as the whole molecule model.  To go back down, you could use the down arrow key.  Also, the commands "select up" and "select down" do the same thing.

<http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/selection.html#expandselect>
<http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/select.html#newer>

If you didn't have any atom selected but you know you want to select all the atoms in a particular model, you can use the select command with the model number (example: select #0), or you could open the Model Panel from the Favorites menu, and in that panel choose the model  on the left side and click the "select" button on the right side.

<http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/modelpanel.html>

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

On May 23, 2011, at 7:39 AM, Marek Maly wrote:

> Hello all,
> is there any possibility how to select all atoms which belongs to the given
> molecule ?
> 
> I mean something which allow me to select whole molecule to which belongs  previously
> selected atom. Unfortunately ZONE selection is not useful here as it allow  to select
> only atoms or residues, not whole molecular structures.
> 
> Selection by hand/mouse is not possible to use in cases when
> two or more molecules are very close together.
> 
> Thanks a lot in advance for advices !
>   Best wishes,
>      Marek Maly