%A Gražulis, Saulius %A Daškevič, Adriana %A Merkys, Andrius %A Chateigner, Daniel %A Lutterotti, Luca %A Quirós, Miguel %A Serebryanaya, Nadezhda R. %A Moeck, Peter %A Downs, Robert T. %A Le Bail, Armel %T Crystallography Open Database (COD): an open-access collection of crystal structures and platform for world-wide collaboration %0 Journal Article %D 2012 %8 January 1, 2012 %J Nucleic Acids Research %P D420-D427 %R 10.1093/nar/gkr900 %V 40 %N D1 %U http://nar.oxfordjournals.org/content/40/D1/D420.abstract %X Using an open-access distribution model, the Crystallography Open Database (COD, http://www.crystallography.net) 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 A newly developed website provides capabilities for all registered users to deposit published and so far unpublished structures as personal communications or pre-publication depositions.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.