Transition Resources

Starting July 21, 2027: * The PDB Beta Archive <https://files-beta.wwpdb.org/> will replace the current PDB main archive <https://files.wwpdb.org/>. The current beta archive URL will point to the main archive. * PDB entries that have been issued 4-character PDB IDs, including IHM structures in PDB-IHM, will be accessed in this archive using their extended PDB ID that prepends “pdb_0000” to the 4-character ID (e.g., 1ABC becomes pdb_00001abc). * OneDep will only issue 12-character IDs (prefix pdb_ followed by 8 alphanumeric characters, e.g., pdb_1000axyz). o New 4-character PDB IDs will not be issued at this point. o Data deposited after July 21, 2027 will only be released in PDBx/mmCIF and PDBML formats. o Legacy PDB formatted files will not be generated for these entries. The PDB Beta Archive <https://files-beta.wwpdb.org/> is designed to be scalable and extensible. All files in this archive are re-organized using extended PDB IDs (including file naming and directories). All PDB users, including software developers and journal editors, must transition to this new archive directory structure, PDBx/mmCIF and extended PDB ID format. Start using extended IDs and PDBx/mmCIF data files today. For any further information please contact us at info@wwpdb.org. Transition Resources * PDB ID Extension FAQ <https://www.wwpdb.org/documentation/pdb-id-extension-faq> * PDB Beta Archive Overview <https://www.wwpdb.org/ftp/pdb-beta-ftp-sites>: includes scripts, shortlink URLs, and other resources * Understanding PDBx/mmCIF format <https://pdb101.rcsb.org/learn/guide-to-understanding-pdb-data/beginner%E2%80%99s-guide-to-pdbx-mmcif> * PDBx/mmCIF User Guide <https://mmcif.wwpdb.org/docs/user-guide/guide.html> * PDBx/mmCIF Dictionary <https://mmcif.wwpdb.org/> * PDB -> PDBx/mmCIF correspondences <https://mmcif.wwpdb.org/docs/pdb_to_pdbx_correspondences.html> * An online PDBx/mmCIF Editor <https://pdbj.org/cif-editor/> * PDBx/mmCIF software resources <https://mmcif.wwpdb.org/docs/software-resources.html> Read the full news here: https://www.wwpdb.org/news/news?year=2026#69ebcdca1103c56d3f444159 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>