Revision history summarizes revisions made to a structure as tracked in the PDBx/mmCIF categories PDBX_AUDIT_REVISION_HISTORY, PDBX_AUDIT_REVISION_GROUP, PDBX_AUDIT_REVISION_CATEGORY and PDBX_AUDIT_REVISION_ITEM.
PDBx/mmCIF supports more detailed and more accurate revision information than what is provided in data files in PDB file format (REVDAT records).
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