Published quarterly by the Research Collaboratory for Structural Bioinformatics Protein Data Bank

Message from RCSB PDB

The PDB was announced on October 20, 1971 in Crystallography: Protein Data Bank Nature New Biology 233: 223 (1971) doi: 10.1038/newbio233223b0.

Fifty years later, the PDB archive contains ~180,000 structures of proteins, nucleic acids, and complex assemblies that helps students and researchers understand all aspects of biomedicine and agriculture, from protein synthesis to health and disease. It is managed by the Worldwide PDB (wwPDB) organization that ensures that the PDB is freely and publicly available to the global community.

Throughout 2021, the wwPDB will be celebrating the 50th anniversary of the PDB archive Highlights during the first half of 2021 have included:

Upcoming events include the Function Follows Form: Celebrating PDB50 (July 30-31; virtual event part of the Annual Meeting of the American Crystallographic Association) and Understanding Enzyme Function in 3D (August 25; part of the American Chemical Society Fall meeting). Visit and for more information.

EMDB, the primary archive for experimentally-determined maps and tomograms obtained using 3DEM, is now an official partner in the wwPDB collaboration. Visit for more.

New SARS-CoV-2 PDB structures and related resources are updated regularly at

Corona virus 3D model
Snapshot: July 1, 2021
179,548 Released atomic coordinate entries
Molecule Type
157,142 Proteins, peptides, and viruses
3,641 Nucleic acids
9,443 Protein/nucleic acid complexes
9,117 Protein/Oligosaccharide
22 Oligosaccharide (only)
183 Other
Experimental Technique
7,974 X-ray
13,336 NMR
7,335 Electron Microscopy
187 Multi Method
71 Neutron Diffraction
37 Other