The PDBe tilt-pair validation web-server is now available from: http://www.pdbe.org/tiltpair. You can use this service to perform a tilt-pair analysis on your own data. Although it is not currently possible to deposit the tilt-pair analysis to EMDB, the experience we gain with this server will help us develop the eventual deposition of tilt-pair validation data. Send email to ardan@ebi.ac.uk with any feedback, ideas for improvements, and/or questions on this service.