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

[Elaine Meng]

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).
<http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/render/render.html#render>

You can select just the residues with some range of SAS values using Select by Attribute, which is another part of that same tool.
<http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/render/render.html#select>

Please see this previous post for more details:
<http://plato.cgl.ucsf.edu/pipermail/chimera-users/2010-October/005693.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 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
>