Data Deposition/Biocuration Services and
Archive Management

In 2025, 20,974 experimentally-determined structures were deposited to the PDB archive.  Data are processed by wwPDB partners RCSB PDB, PDBe, PDBj and PDBc.

Of all structures deposited in 2025, 85.6% were deposited with a release status of hold until publication  7.5% were released as soon as annotation of the entry was complete  and 7.0% were held until a particular date. 53.1% of these entries were determined by X-ray crystallographic methods  1.3% were determined by NMR methods  and 45.3% by 3DEM.

11,692 EMDB maps were released in the archive.

17,589 new PDB structures were released in 2025. They account for 7.1% of the year-end total holdings of 247,287 available entries.

In 2025, wwPDB received a record number of new structure depositions–20,975 new entries. This achievement reflects the impact of rapid advances in cryo-electron microscopy, high-throughput crystallography, enhanced computational and AI-driven modeling tools, and a long-standing commitment to open data sharing.

This milestone was supported by the expertise of wwPDB biocurators, who carefully review, validate, and enhance each structure with value-added annotations, ensuring entries are accurate, discoverable, and useful to researchers across disciplines.

wwPDB extends sincere thanks to the global scientific community for their continued support and invaluable contributions, and looks forward to reaching new milestones together for the advancement of science worldwide.

Metalloproteins represent ~30% of the PDB archive. Ensuring FAIR data practices for metalloproteins is highly impactful. wwPDB will update existing polyatomic metal containing PDB entries and CCDs to make metalloprotein structures findable and reusable with more complete chemical description and metal coordination annotation. About ~900 metal-containing polyatomic CCDs and ~13000 affected PDB entries will be updated and publicly available in Q3 2026.
The updates include standardization of calculated charge, improved ideal coordinate calculation, metal coordination and pi bond annotation, and coordination geometry annotation in the CCDs and impacted PDB entries. This remediation effort includes adoption of metalloprotein community software (FindGeo from MetalPDB and MetalCoord from CCP4).

Details are available at wwPDB.org.

The PDBx/mmCIF dictionary extensions, examples of PDBx/mmCIF files of remediated data representing various cases, and the corresponding proposed Chemical Component Dictionary definitions are provided at GitHub for testing and adoption by key stakeholders during the development stage, including the metalloprotein community, refinement software developers, cheminformaticians, and 3D visualization software.