PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1499941-1 1992 Cellular protection from immune-generated oxygen free radicals is initiated by the reduction of oxygen radicals by manganese superoxide dismutase (MnSOD) and copper/zinc superoxide dismutase (Cu/ZnSOD). radicals 54-62 superoxide dismutase 1 Rattus norvegicus 192-200