PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11485572-7 2001 We found that when eosinophil peroxidase or myeloperoxidase oxidized thiocyanate, another product besides hypothiocyanite was formed; it also converted methionine into methionine sulphoxide. Methionine 152-162 myeloperoxidase Homo sapiens 44-59