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Welcome to the PyMOL Wiki!
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Quick Links
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Script Library Plugins FAQ
Gallery | Covers PyMOL Cheat Sheet (PDF) Getting Help
News & Updates
Official Release PyMOL v2.5 has been released on May 10, 2021.
Python 3 New Python 3 compatibility guide for scripts and plugins
POSF New PyMOL fellows announced for 2018-2019
Tutorial Plugins Tutorial updated for PyQt5
New Plugin PICv is a new plugin for clustering protein-protein interactions and visualization with available data from PDBe
Selection keywords New polymer.protein and polymer.nucleic selection keywords. Thanks everyone who participated in the poll!
Plugin Update MOLE 2.5 is an updated version of channel analysis software in PyMOL
New Script dssr_block is a wrapper for DSSR (3dna) and creates block-shaped nucleic acid cartoons
Older News See Older News.
Did you know...


Util.cbc stands for (the utilities library's) color by chain. This simply colors molecules by their chains, as the name suggests.

The affects of CBC are shown in the following images.


# simple command
util.cbc selection, first_color, quiet

# api usage


  • selection defaults to 'all',
  • first_color defaults to 7,
  • quiet defaults to 1


# color everything by chain

See Also

A Random PyMOL-generated Cover. See Covers.