The Electron Microscopy Data Bank (EMDB) (www.ebi.ac.uk/emdb/) is a public repository for electron cryo-microscopy volume maps and tomograms of macromolecular complexes and subcellular structures. It covers a variety of techniques, including single-particle analysis, electron tomography, and electron crystallography.
EMPIAR (www.ebi.ac.uk/empiar), the Electron Microscopy Public Image Archive, is a public resource for raw images underpinning 3D cryo-EM maps and tomograms (themselves archived in EMDB). EMPIAR also accommodates 3D datasets obtained with volume EM techniques and soft and hard X-ray tomography. All data archived in EMPIAR can be re-used freely without any conditions or restrictions ("CC0" license model). Detailed information about EMPIAR policies and procedures is available.