O

  • a model building application for X-ray crystallography.

Developers

Alwyn Jones

Categories

X-ray Crystallography

Versions

Citations

Jones. Interactive electron-density map interpretation: from INTER to O. Acta crystallographica Section D, Biological crystallography (2004) vol. 60 (Pt 12 Pt 1) pp. 2115-25

Jones et al. Improved methods for building protein models in electron density maps and the location of errors in these models. Acta crystallographica Section A, Foundations of crystallography (1991) vol. 47 ( Pt 2) pp. 110-9

Technical Notes

As of version 12.0, O no longer requires a license file.

To use custom O data files (rotamer database, interface files, etc), you must override the ODAT environmental variable to point to your own directory.

  • Open a tcsh new shell and source /programs/labcshrc
  • echo $ODAT (note the current O data directory
  • cp -Rp $ODAT ~/o_data (copy the current O data files to your home directory)
  • setenv ODAT ~/o_data (you can add this to your ~/.cshrc after the 'source /programs/labcshrc" line)

Copy your custom files to ~/o_data and then run your newly customized O.

O works with SGI Dials. If you're using OS X, you should download and install the most recent USB<->Serial adapter driver for dials use from David Gohara's website. The download file contains a PDF with instructions on installation and set up.

License Type

This software is distributed under an Open license.

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