What I personally do is:

cmd.color("grey50","all")
util.cnc("all")

So that my carbons have the color I wish (grey50), and other atoms are colored 
by element.

Best,

Greg


-----Original Message-----
From: David Hall [mailto:[email protected]] 
Sent: Wednesday, February 10, 2010 1:45 AM
To: Ariel Talavera
Cc: [email protected]
Subject: Re: [PyMOL] color by element

First of all, there is:
color atomic
which will do all the colors and for whatever reason does green for carbons

Additionally, there's a general class of util.cba? where question mark
is replaced by one letter representing the color of carbon.  I've been
told by people that these are supposed to be internal commands and I
shouldn't use them, but I do and they've been there as long as I've
used pymol.

Currently, these are:
util.cbab for slate
util.cbag for green
util.cbam for magenta
util.cbap for purple
util.cbaw for white
util.cbac for cyan
util.cbak for pink
util.cbao for orange
util.cbas for salmon
util.cbay for yellow

You can see how these are implemented in
http://pymol.svn.sourceforge.net/viewvc/pymol/trunk/pymol/modules/pymol/util.py?view=markup
if you want to make your own custom versions.

-David Hall

On Tue, Feb 9, 2010 at 5:46 PM, Ariel Talavera <[email protected]> wrote:
> Hi Pymolers,
>
> How can I use the color by element (HNOS) function present in the GUI,
> in a script?
>
> Thanks in advanced,
>
> Best,
> Ariel
>
> --
> *************************************************
> Ariel Talavera Pérez, PhD
> Center of Molecular Immunology
> calle 216 esq. A 15, Atabey, Playa
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> fax: (53-7) 272 0644
> email: [email protected]
> *************************************************
>
>
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