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Revision as of 17:32, 31 October 2015
Description
Here is a small script to color proteins according to residue type. Call it from your .pymolrc or from within pymol: "run resicolor.py". Then, issuing "resicolor" will apply the scheme. Selections are supported: "resicolor chain A" will apply the scheme only to chain A. This functionality is also available as a plugin (Resicolor_plugin).
#script contributed by Philippe Garteiser; garteiserp@omrf.ouhsc.edu
from pymol import cmd
def resicolor(selection='all'):
'''USAGE: resicolor <selection>
colors all or the given selection with arbitrary
coloring scheme.
'''
cmd.select ('calcium','resn ca or resn cal')
cmd.select ('acid','resn asp or resn glu or resn cgu')
cmd.select ('basic','resn arg or resn lys or resn his')
cmd.select ('nonpolar','resn met or resn phe or resn pro or resn trp or resn val or resn leu or resn ile or resn ala')
cmd.select ('polar','resn ser or resn thr or resn asn or resn gln or resn tyr')
cmd.select ('cys','resn cys or resn cyx')
cmd.select ('backbone','name ca or name n or name c or name o')
cmd.select ('none')
print selection
code={'acid' : 'red' ,
'basic' : 'blue' ,
'nonpolar': 'orange' ,
'polar' : 'green' ,
'cys' : 'yellow'}
cmd.select ('none')
for elem in code:
line='color '+code[elem]+','+elem+'&'+selection
print line
cmd.do (line)
word='color white,backbone &'+selection
print word
cmd.do (word) #Used to be in code, but looks like
#dictionnaries are accessed at random
cmd.hide ('everything','resn HOH')
cmd.extend ('resicolor',resicolor)