[wwPDB] Time-stamped Copies of PDB and EMDB Archives

A snapshot of the PDB Core archive (ftp://ftp.wwpdb.org) as of January 3, 2022 has been added to ftp://snapshots.wwpdb.org and ftp://snapshots.pdbj.org. Snapshots have been archived annually since 2005 to provide readily identifiable data sets for research on the PDB archive.

The directory 20220103 includes the 185541 experimentally-determined structure and experimental data available at that time. Atomic coordinate and related metadata are available in PDBx/mmCIF, PDB, and XML file formats. The date and time stamp of each file indicates the last time the file was modified. The snapshot of PDB Core Archive is 923 GB.

A snapshot of the EMDB Core archive (ftp://ftp.ebi.ac.uk/pub/databases/emdb/) as of January 3, 2022 can be found in ftp://ftp.ebi.ac.uk/pub/databases/emdb_vault/20220103/ and ftp://snapshots.pdbj.org/20220103/. The snapshot of EMDB Core Archive contains map files and their metadata within XML files for both released and obsoleted entries (18059 and 254, respectively) and is 4.5 TB in size.

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