[Chimera-users] Calculating Solvent Accessible Surface of individual residue in a model

Elaine Meng meng at cgl.ucsf.edu
Fri Dec 10 09:49:00 PST 2010

Hi Harjanto,
Yes, it is automatically calculated as soon as you show a surface.  SAS and SES areas are "attributes" of atoms and residues.  After you show a surface, you can see histograms of the values and save them to a file using Render by Attribute (under Tools... Structure Analysis).

You can select just the residues with some range of SAS values using Select by Attribute, which is another part of that same tool.

Please see this previous post for more details:

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 Dec 9, 2010, at 11:07 PM, Sumitro Harjanto wrote:

> Hi Meng, 
> I would like to find out if I can use Chimera to calculate the solvent accessible surface(SAS) of each residue in a model..? I would like to find out, basically, if I show the surface of the molecule, which are the residues buried (SAS = 0) and which are the ones contributing to the surface contour (SAS > 0).
> Thanks! =] 
> Cheers,
> Sumitro

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