Hi Cavi - 

This should do it:

        select delta, resi 11 and resn ARG and name CD and state 76

or, using a selection macro:

        select delta, ARG`11/CD and state 76

If you want to show all the states simultaneously to highlight differences from 
state 76, you can also use:

        set all_states, 1

Hope that helps,

Cheers,
Jared


On December 20, 2017 at 7:52:46 PM, Cavi via PyMOL-users 
(pymol-users@lists.sourceforge.net) wrote:

Hello everyone!

I have a pdb file of a protein structure solved by NMR. It consists of 120 
states/models/conformations depending on which term you prefer. Pymol refers to 
them as states.

My question is, if I want to select atom 'CD' of residue number 11 (which is an 
arginine) of state 76, how can I go about it?
I have been able to select the CD atoms of all arginine residues shown in their 
various states using these commands:
select delta, (r;arg) and (n;CD)   #selects all the CD atoms of arginine 
residues in their various states
show dots, delta                   #show them as dots
color red, delta                   #color the dots as red
Now I want to further refine my selection by highlighting one of these states 
as a sphere and of a different color. Please how can I do this?
My question again, how can I select all the CD atoms of arginine residues, 
choose only the CD atoms of one of the arginines (e.g arginine 11) and 
highlight one of the states (e.g. state 76) as a blue sphere.
Thank you in advance!

Best regards,
Cavi

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