_pdbx_investigation_focus.investigation_id _pdbx_investigation_focus.key_component_name _pdbx_investigation_focus.component_id _pdbx_investigation_focus.comp_ref_db_acc _pdbx_investigation_focus.comp_ref_db_name _pdbx_investigation_focus.comp_ref_db_code FH123 Hemoglobin1 1 P68871 UNP HBB_HUMAN FH123 Hemoglobin2 2 P69905 UNP HBA_HUMAN