With the ultimate goal of developing recommendations for validation criteria for 3DEM maps deposited to the EM Data Bank (EMDB) and map-derived model deposited to Protein Data Bank (PDB), EMDataBank is hosting community-wide challenges to critically evaluate 3DEM methods.  Six challenge targets are based on recently described 3DEM single particle structure determinations.

The challenge targets can be viewed interactively by clicking on the images below.