[Chimera-users] selection of a specific region from different chains

Elaine Meng meng at cgl.ucsf.edu
Mon Jul 21 09:30:33 PDT 2008

Hi Andy,
if the numbers are different in the different chains, you can also use  
a command like

sel :100-200.a,235-280.b,298.b,112-194.c

(residues 100-200 in chain A, residues 235-280 and 298 in chain B,  
residues 112-194 in chain C)

There are examples of command-line specification on the back side of  
the Quick Ref (PDF file):

and full documentation of command-line specification is here:

There are additional ways, more complicated to explain.  If you change  
selection mode to "append" (menu: Select... Selection Mode... append)  
then selections such as with the "select" command or by dragging in  
the Sequence tool will be accumulated instead of replacing each  
other.  I recommend changing back to "replace" afterward to avoid  
later confusion.  Also, the selection mode does not apply to selection  
with the mouse in the graphics window.

Elaine C. Meng, Ph.D.                          meng at cgl.ucsf.edu
UCSF Computer Graphics Lab and Babbitt Lab
Department of Pharmaceutical Chemistry
University of California, San Francisco

On Jul 21, 2008, at 9:13 AM, Tom Goddard wrote:

> Hi Andy,
>  Use a command like "select :100-200 to select residues 100 through  
> 200
> in all chains.
>    Tom
> Anindito Sen wrote:
>> HI Tom
>> I have a 5 separate chains (of the same crystal structure) docked
>> along my filament reconstruction. How do I select and highlight a
>> certain length of amino acids from each and every chain. Problem
>> happens when I try to select a region of the second or 3rd chain,
>> which "deselects" the pervious selection.
>> Best Andy

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