Colorbydisplacement: Difference between revisions

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== Acknowledgement ==
{{Infobox script-repo
This pymol script is made by Troels Emtekær Linnet.
|type      = script
 
|filename  = colorbydisplacement.py
This script is based on the scaffold from [[ColorByRMSD]]. Peace love and harmony goes to Shivender Shandilya and Jason Vertrees.
|author    = [[User:Tlinnet|Troels E. Linnet]]
|license  = BSD
}}


== Introduction ==
== Introduction ==
This script allows you to color two structures by distance displacement between an Open and Closed form of a protein, as calculated by PyMol's internal distance command. The pairwise distance is calculated between, C-alpha or all-atoms. The distance displacement values are stored as B-factors of these residues, which are colored by a ''rainbow'' color spectrum, with blue specifying minimum  and red indicating maximum.
This script allows you to color two structures by distance displacement between an Open and Closed form of a protein, as calculated by PyMol's internal distance command. The pairwise distance is calculated between all-atoms. The distance displacement values are stored as B-factors of these residues, which are colored by a ''rainbow'' color spectrum, with blue specifying minimum  and red indicating maximum.


== Code ==
Do keep in mind, all original B-factors values are overwritten!
Do keep in mind, all original B-factors values are overwritten!


There exist two versions. <br>
There exist one version. <br>
ColorByDisplacement'''CA''' is quick and is between CA atoms. Ideal for helices representation. <br>
ColorByDisplacement'''All''' is between All atoms in residues and is quite slow => 3-5 mins for a run. Ideal for sticks representation.
ColorByDisplacement'''All''' is between All atoms in residues and is quite slow => 3-5 mins for a run. Ideal for sticks representation.


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Residues not in both pdb files is colored black
Residues not in both pdb files is colored black


== Example Pymol Script ==
== Example 1 ==
<syntaxhighlight lang="python">
{{Template:PymolScriptRepoDownload|examples/colorbydisplacement_1.pml}}
import colorbydisplacement
<include src="https://raw.github.com/Pymol-Scripts/Pymol-script-repo/master/examples/colorbydisplacement_1.pml" highlight="python" />
 
fetch 1HP1, async=0
fetch 1HPU, async=0
hide everything
### Select asymmetric units from pdb file
create O5NT, /1HP1//A
create C5NT, /1HPU//C
delete 1HP1
delete 1HPU
show cartoon, O5NT
show cartoon, C5NT
 
ColorByDisplacementAll O5NT, C5NT, super1=resi 26-355, super2=resi 26-355, doColor=t, doAlign=t
set_view (\
    0.094686687,  -0.390707940,    0.915631354,\
    0.809000611,  -0.505792081,  -0.299485058,\
    0.580131471,    0.769104064,    0.268191338,\
    0.000000000,    0.000000000, -280.940521240,\
    26.240486145,  46.146961212,  21.702068329,\
  231.830673218,  330.050415039,  -20.000000000 )
</syntaxhighlight>
 
== Python Code ==
This code has been put under version control. In the project, [http://www.pymolwiki.org/index.php/Git_intro Pymol-script-repo].
 
For a color coded view:
https://github.com/Pymol-Scripts/Pymol-script-repo/blob/master/colorbydisplacement.py
See the raw code or download manually, by right clicking the following link here -> Save as: colorbydisplacement.py
https://raw.github.com/Pymol-Scripts/Pymol-script-repo/master/colorbydisplacement.py


[[Category:Script_Library]]
[[Category:Script_Library]]
[[Category:Structural_Biology_Scripts]]
[[Category:Structural_Biology_Scripts]]
[[Category:Pymol-script-repo]]

Latest revision as of 10:02, 15 January 2012

Type Python Script
Download colorbydisplacement.py
Author(s) Troels E. Linnet
License BSD
This code has been put under version control in the project Pymol-script-repo

Introduction

This script allows you to color two structures by distance displacement between an Open and Closed form of a protein, as calculated by PyMol's internal distance command. The pairwise distance is calculated between all-atoms. The distance displacement values are stored as B-factors of these residues, which are colored by a rainbow color spectrum, with blue specifying minimum and red indicating maximum.

Do keep in mind, all original B-factors values are overwritten!

There exist one version.
ColorByDisplacementAll is between All atoms in residues and is quite slow => 3-5 mins for a run. Ideal for sticks representation.

You have to specify which residues should be used in the alignment procedure, or it will take all residues as standard

V.2 is implemented the 2011.01.06 - Due to a bug in coloring.

Bug in code

A bug in the boolean operator of the spectrum command has been found. This versions work for version 1.3 Educational product.
For other versions of pymol, try to change (comment/uncomment) the cmd.spectrum line. The other spectrum line works for Open-Source PyMOL 1.2r3pre, Incentive product

Examples

ColorByDisplacementAll O5NT, C5NT, super1=resi 26-355, super2=resi 26-355, doColor=t, doAlign=t

ColorByDisplacementAll O5NT, C5NT, super1=resi 26-355, super2=resi 26-355, doColor=t, doAlign=t, AlignedWhite='no'

Dark blue is low displacement, higher displacements are in orange/yellow/red.
Residues used for alignment is colored white. Can be turned off in top of algorithm. Residues not in both pdb files is colored black

Example 1

Download: examples/colorbydisplacement_1.pml
This code has been put under version control in the project Pymol-script-repo

<include src="https://raw.github.com/Pymol-Scripts/Pymol-script-repo/master/examples/colorbydisplacement_1.pml" highlight="python" />