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SuperSym is a PyMOL plugin providing a large number of tools for visualization of space groups; unit cells; and symmetry axes, operators, and partners. Source code for version 1.0 is available from or SuperSymSource.

Dependencies and Acknowledgments

Pre-v1.0 PyMOL may not display objects created by this plugin properly. Use at your own risk.

This plugin requires cctbx and numeric python.

Code for unit cell and symmetry axis building is borrowed from scripts created by Robert Campbell and Ralf W. Grosse-Kunstleve, available at Some of this code has been modified for use in SuperSym.

FindSurfaceResidues is utilized for some of SuperSym's graphics generation, with some modifications.

Installing SuperSym

To install SuperSym, first copy the text of source files to corresponding .py files or download them from SourceForge. Place in pymol/modules/pmg_tk/startup, and all other files in pymol/modules. This will make all of SuperSym's functions available through a drop-down menu in the PyMOL GUI

To use functions of SuperSym directly, without creating a drop-down menu, ignore and use the run command on the other files in PyMOL as you would for any other script.

Using SuperSym

The SuperSym dropdown menu on the PyMOL GUI provides the following options:

  • Default Symmetry Partner Set
  • Draw Unit Cell
  • Build Symmetry Partners >
    • Cell [0,0,0] (default)
    • Cell [x,y,z] (custom)
    • 2x2x2 Block
    • 3x3x3 Block
  • Coloring >
    • Default Rainbow
    • Select color for each operation
    • Select one color for custom set of operations
  • Graphics >
    • Lines
    • Ribbon
    • Sphere Surface (best for printing)
    • Surface (high load render)
  • Symmetry Axes >
    • Build Axes
  • Move symmetry partners
  • About
  • Help