PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 23306200-11 2013 In the presence of chloride and hydrogen peroxide, ceruloplasmin converted myeloperoxidase to Compound II and slowed its conversion back to the ferric enzyme. Chlorides 19-27 myeloperoxidase Homo sapiens 75-90