Many structural biologists deposit multiple related entries: mutants, ligand-bound forms, re-refinements, or follow-up EM maps from the same project. Re-entering authors, citations, funding, macromolecules information and experimental details for each new deposition is repetitive and error-prone. The wwPDB OneDep deposition system has long offered a *“Based on a previous wwPDB deposition”* option on the *File upload* page. This feature has been *substantially refactored and improved* to make metadata reuse faster, more selective, and more reliable across X-ray, NMR, and EM depositions. In order to use this feature, depositors need to provide the *previous deposition ID* (with its password, or by using ORCID authentication), choose which *metadata categories* to copy, and upload new files as usual. Selected mmCIF metadata is merged into the new entry before annotation. The upload *Summary* page then shows what was imported, skipped, or blocked. The previous entry must be deposited at the same wwPDB site as the current entry. Key improvements include: * ORCID search: authenticated users can search their own past depositions and don’t need to re-enter the password * Re-upload support: the feature can be used during re-upload * Selective import: depositors choose specific categories (authors, citation, funding, keywords, macromolecules (new option), method-specific experimental information) * Macromolecule checks: entity metadata is copied only when polymer chains align between structures * Method-aware safeguards: X-ray, NMR, and EM options appear only when both depositions are compatible; EM reconstruction sub-method must also match for EM experimental information * Authoritative mmCIF source: metadata is copied from the related entry’s annotated mmCIF record The feature is available on the File upload page at deposit.wwpdb.org <https://deposit.wwpdb.org>. Further guidance is in the wwPDB deposition FAQ <https://www.wwpdb.org/deposition/faq> and wwPDB tutorial page <https://www.wwpdb.org/deposition/tutorial>. Read the full news here:https://www.wwpdb.org/news/news?year=2026#6a626da53bf5580b84a87d27 On behalf of the wwPDB, -- IRINA PERSIKOVA, Ph.D. Deputy Biocuration Lead, RCSB Protein Data Bank Research Associate, Institute for Quantitative Biomedicine Rutgers, The State University of New Jersey 174 Frelinghuysen Road, Piscataway NJ 08854 P: 848.445.4938 | E: irina.persikova@rcsb.org <mailto:irina.persikova@rcsb.org> rcsb.org <www.rcsb.org> | iqb.rutgers.edu <http://iqb.rutgers.edu> | facebook <https://www.facebook.com/RCSBPDB> | twitter <https://twitter.com/buildmodels>