A new FTP repository, ftp://ftp-versioned.wwpdb.org/ now hosts versioned structural model files in PDBx/mmCIF and PDBML formats. As announced on May 17, 2017, wwPDB has introduced a versioning system to enable depositor-initiated or wwPDB-initiated updates to previously released PDB entries while retaining the same PDB accession code. Updates to atomic coordinates, polymer sequence or chemical description in a PDB coordinate file will trigger a major version increment. Other changes will be classified as minor. All major versions of each PDB structure are retained in the new FTP archive. In the 2018 phase of the project, wwPDB will enable depositor-initiated updates of coordinates.
Different views of the repository are provided for content type and format as a convenience for repository users. The wwPDB provides a link to the absolutely latest version files as well as latest version of each major version in the entries directories.
Or users can access all major versions of coordinate mmCIF files for entry 1ABC via below file path.
Data files in the current archive location ftp://ftp.wwpdb.org/pub/pdb/data/structures/ will continue to use the familiar naming style and will continue to contain only the latest version for every entry.
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