Re: [PyMOL] question on differential coloring of protein chains

[Michael B. <mb...@uv...>]

On Tuesday, February 17, 2004, at 02:57  PM, ALEX DAJKOVIC wrote:

> hello-
> i am new to pymol and am trying to figure out how to differentially
> color different chains (i.e. different proteins) in the structure i am
> viewing.  the structure i am working with is actually a structure of=20=

> two
> proteins that were co-crystalized and i would like assign different
> colors to them.
> thanks for your help.
> alex dajkovic

Hello Alex, I think what you want is to use the 'select' function in=20
combination with the 'resi' function. This is documented in the=20
reference manual.
Following is a helpful summary that was sent to me by Robert L.=20
Campbell, Ph.D.

Let's say I wanted to create a single residue selection for Lysine 465=20=

(and I choose to call the selection 'K465'), so that I could color and=20=

display it the way I wanted: (insert your particular atom coordinates=20
file name where you see square brackets below)
_______________________________________
select K465, ([filename] and chain A and resi 465)

or you could shorten the selection string:

select ak465, (abc & c. a and r. 465)

or use the shorthand notation:

select ak465, /abc//a/465
_______________________________________
=98
Now to create multiple residue selections, just separate the start and=20=

end residue numbers by a colon, I think, following the word 'resi'

Once you create your unique selections they show up in the right panel=20=

list and you can further manipulate their display properties as you see=20=

fit.

Regards,
--Michael