With this week's update, the PDB archive contains a record 200,069 entries. The archive passed 150,000 structures in 2019 and 100,000 structures in 2014.

Established in 1971, this central, public archive has reached this critical milestone thanks to the efforts of structural biologists throughout the world who contribute their experimentally-determined protein and nucleic acid structure data.

wwPDB data centers support online access to three-dimensional structures of biological macromolecules that help researchers understand many facets of biomedicine, agriculture, and ecology, from protein synthesis to health and disease to biological energy. Many milestones have been reached since the archive released the 100,000th structure in 2014. PDB data have been seminal in understanding SARS-CoV-2, and provided the foundation for the development of AI/ML techniques for predicting protein structure. The 50th anniversary of the PDB was celebrated throughout 2021.

Today, the archive is quite large, containing more than 3,000,000 files related to these PDB entries that require more than 1086 Gbytes of storage. PDB structures contain more than 1.8 billion non-hydrogen atoms.

Read more at the wwPDB news page.