Close, but it depends on whether you want the surface area of the
residues alone, or in the context of the molecule.  

load protein.pdb
get_area resn arg 

  will be less than

create arg_object, resn arg
get_area arg_object

This is because the first example will give you only the exposed area of
the arginines in the presence of the other atoms, whereas the second
gives the area of the arginines in isolation.

Cheers,
Warren


--
mailto:war...@delanoscientific.com
Warren L. DeLano, Ph.D.
Principal Scientist
DeLano Scientific LLC
Voice (650)-346-1154
Fax   (650)-593-4020 
-----Original Message-----
From: pymol-users-ad...@lists.sourceforge.net
[mailto:pymol-users-ad...@lists.sourceforge.net] On Behalf Of Kaushik
Raha
Sent: Wednesday, November 12, 2003 2:50 PM
To: Harp, Joel M
Cc: pymol-users@lists.sourceforge.net
Subject: Re: [PyMOL] surface area calculation


To calculate surface area for a defined object from the PyMOL command
line type:

print cmd.get_area("obj")

where obj is the name of your object.

for arginines:

create ARG, resn ARG
print cmd.get_area("ARG")

Kaushik.

On Wednesday, November 12, 2003, at 05:10 PM, Harp, Joel M wrote:




Is it possible to get pymol to calculate surface area for a defined
object?  For instance, can it calculate surface area occupied by
arginines.

Thanks,
Joel

Joel M. Harp
Vanderbilt University


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