on line 1422 _atom_site.entity_seq_num is referenced in a comment. It is not defined in the dictionary. on line 7434 _chem_comp_link.id is referenced in a comment. It is not defined in the dictionary. on line 9889 _citation.journal_coden_PDB should be _citation.journal_coden_CSD on line 14578 _entity_link.id is referenced in a comment. It is not defined in the dictionary.