[PyMOL] Labelling ligands and amino acids

[Brenton H. <bre...@ym...>]

Hi,

I have skimmed the Label <http://pymolwiki.org/index.php/Label> page on 
PyMOL Wiki and it only appears to give examples about how to label 
specific atoms and not whole ligands or residues. See I'd like to label 
residue 403 as "Ser403", ceftaroline's open form (het ID AI8) as "Open 
CFT" and ceftaroline (het ID 1W8) as "CFT" in the structure that has the 
PDB ID 3ZG0. I presently have the PyMOL code:
> delete all
> load 3zg0.pdb1
> hide
> show cartoon
>
> # Colouring secondary structure
> set_color blues, [0.0196078,0.7607843,0.7607843]
>
> color red, ss h
> color yellow, ss s
> color blues, ss l+""
>
>     show sticks, r. 1w8
>     label (r. 1w8), "CFT"
>     show sticks, r. ai8
>     label (r. ai8), "open-chain CFT"
>     show sticks, r. mur
>
>     show sticks, resi 403
>     color green, resi 403
>     label (resi 403), "Ser403"
>     h_add
>     set valence, 0.2
>
>
> set_color orange, [1, 0.5, 0]
> set_color fluorine, [0.5625,0.875,0.3125]
> set_color chlorine, [0.12109375,0.9375,0.12109375]
> set_color sulfur, [1,1,0.18750]
>
> # Colouring elements
> #color black, elem c and resi 69 and not name c+n+o
> color black, elem c and organic
>
> #color blue, elem n and resi 69 and not name c+n+o
> color blue, elem n and organic
>
> #color white, elem h and resi 69 and not name c+n+o
> color white, elem h and organic
>
> #color red, elem o and resi 69 and not name c+n+o
> color red, elem o and organic
>
> #color orange, elem p and resi 69 and not name c+n+o
> color orange, elem p and organic
>
> #color fluorine, elem f and resi 69 and not name c+n+o
> color fluorine, elem f and organic
>
> #color chlorine, elem cl and resi 69 and not name c+n+o
> color chlorine, elem cl and organic
>
> color sulfur, elem s and organic
>
> # Colour backgrond white
> bg_color white
>
> remove solvent
With the relevant code indented. The result was 
http://i.imgur.com/lXoZmQA.png. The problem, however, is that as you can 
see in this image this code doesn't give just a single, individual label 
for each of the two ligands and serine 403, rather it appears to label 
each individual atom in each of these three molecules of interest. So my 
question is how do I get just a single label for each molecule of 
interest and not for every atom inside these molecules.

Thanks for your time,
Brenton