XmlmmCIF equivalent: struct Data items in the STRUCT category record details about the description of the crystallographic structure. XmlmmCIF equivalent: struct/pdbx_descriptor An automatically generated descriptor for an NDB structure or the unstructured content of the PDB COMPND record. XmlmmCIF equivalent: struct/pdbx_model_details Text description of the methodology which produced this model structure. XmlmmCIF equivalent: struct/title A title for the data block. The author should attempt to convey the essence of the structure archived in the CIF in the title, and to distinguish this structural result from others. XmlmmCIF equivalent: struct/entry_id This data item is a pointer to _entry.id in the ENTRY category.