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

2004-02-18 Thread Michael Bovee

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 
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 
combination with the 'resi' function. This is documented in the 
reference manual.
Following is a helpful summary that was sent to me by Robert L. 
Campbell, Ph.D.


Let's say I wanted to create a single residue selection for Lysine 465 
(and I choose to call the selection 'K465'), so that I could color and 
display it the way I wanted: (insert your particular atom coordinates 
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
___
˜
Now to create multiple residue selections, just separate the start and 
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 
list and you can further manipulate their display properties as you see 
fit.


Regards,
--Michael




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

2004-02-17 Thread Mario Sanches

Hi Alex.

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


As long as I know you can do that by creating copies of the same molecule. Do 
like this:


load molecule.pdb, mole
create copy, (mole)

Then assign different colors to each (for example):

color blue, mole
color red, copy

Finally show each chain separately:

show cartoon, (mole  c;A)
show cartoon, (copy  c;B)

(in the case you what a cartoon representation of chains A and B).

I hope that helps you.

--
Mario Sanches,  PhD Student
Protein Crystallography Group
São Paulo University, São Carlos Physics Institute
Phone:  +55 (16) 273 9868
sanc...@if.sc.usp.br