[Chimera-users] structure manupulation

Elaine Meng meng at cgl.ucsf.edu
Tue Nov 24 08:37:59 PST 2009

Dear Haixin,
There is a simple way to manipulate part of a protein structure, but  
it will not make smooth connections between the moved part and the  
rest of the structure.

Take a look at the "Movement Mouse Mode" tool (under Tools... Movement  
in the menu).  You could either choose "Move helix, strand, or turn"  
if you can accurately grab the helix you want with the mouse, or  
select your helix and choose "Move selection."

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

On Nov 23, 2009, at 5:21 PM, Haixin Sui wrote:

> Tom and Elaine,
> Is there a simple way to manipulate part of a protein structure in  
> Chimera? What I would like to do is the following. Let’s say I have  
> a molecular compose 8 helixes. 7 of them fit in the cryo-EM map  
> perfectly but one short helix is off probably owing to  
> conformational change.   I would like to move the short helix into  
> the density map manually. The difficult part is how to make a smooth  
> transition for loop regions at both ends of the helix. Would you  
> please give me some advice on this?
> Thanks!
> Haixin

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