Data Distribution

Data in the form of PDB files continue to be distributed once per week and become available no later than 1:00 am PST each Wednesday. Mirror sites have been established in Japan (Osaka University,, Singapore (National University Hospital,, and the United Kingdom (CCDC, and are updated along with the main PDB site. Additional mirrors are also under development.

[Fig 1. Usage of the primary PDB site since inception in February 1999 December 20, 1999. The peak usage occurred in October when this site with an average of 95910 hits, 72282 files, 52428 sites per day]