主要网站：
Protein Data Bank in Europe （PDBe）

https://www.ebi.ac.uk/pdbe/

The European resource for the collection, organisation and dissemination of 3D structural data (from PDB and EMDB) on biological macromolecules and their complexes.

Unified Data Resource for 3DEM

https://www.emdataresource.org/index.html

Global resource for 3-Dimensional Electron Microscopy (3DEM) structure data archiving and retrieval, news, events, software tools, data standards, validation methods, and community challenges

EMPIAR 

https://www.ebi.ac.uk/pdbe/emdb/empiar/

EMPIAR, the Electron Microscopy Public Image Archive, is a public resource for raw, 2D electron microscopy images. Here, you can browse, upload and download the raw images used to build a 3D structure.

the Electron Microscopy Data Bank（EMDB） 

https://wwwdev.ebi.ac.uk/emdb/

EMDB (the Electron Microscopy Data Bank) is a public repository for electron cryo-microscopy maps and tomograms of macromolecular complexes and subcellular structures. It covers a variety of techniques, including single-particle analysis, electron tomography, sub-tomogram averaging, fibre diffraction and electron crystallography.