XmlmmCIF equivalent: pdbx_database_related Data items in PDBX_DATABASE_RELATED contain references to entries that are related to the this entry. XmlmmCIF equivalent: pdbx_database_related/content_type The identifying content type of the related entry. XmlmmCIF equivalent: pdbx_database_related/details A description of the related entry. XmlmmCIF equivalent: pdbx_database_related/db_name The name of the database containing the related entry. XmlmmCIF equivalent: pdbx_database_related/db_id The identifying code in the related database.