Crystallography Open Database (COD): an open-access collection of crystal structures and platform for world-wide collaboration

Nucleic Acids Res. 2012 Jan;40(Database issue):D420-7. doi: 10.1093/nar/gkr900. Epub 2011 Nov 8.


Using an open-access distribution model, the Crystallography Open Database (COD, collects all known 'small molecule / small to medium sized unit cell' crystal structures and makes them available freely on the Internet. As of today, the COD has aggregated ~150,000 structures, offering basic search capabilities and the possibility to download the whole database, or parts thereof using a variety of standard open communication protocols. A newly developed website provides capabilities for all registered users to deposit published and so far unpublished structures as personal communications or pre-publication depositions. Such a setup enables extension of the COD database by many users simultaneously. This increases the possibilities for growth of the COD database, and is the first step towards establishing a world wide Internet-based collaborative platform dedicated to the collection and curation of structural knowledge.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cooperative Behavior
  • Crystallography*
  • Databases, Factual*
  • Models, Molecular
  • User-Computer Interface