PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2535839-2 1989 Ceruloplasmin was also shown to inhibit superoxide-mediated mobilization of iron from ferritin, in a concentration-dependent manner, as measured spectrophotometrically using the iron(II) chelator bathophenanthroline sulfonate. ammonium ferrous sulfate 178-186 ceruloplasmin Homo sapiens 0-13