PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22653900-4 2012 Physiologically, superoxide is immediately transformed into hydrogen peroxide and diatomic oxygen with manganese superoxide dismutase (MnSOD). Hydrogen Peroxide 60-77 superoxide dismutase 2 Rattus norvegicus 135-140