PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8395934-1 1993 When phenylalanine was incubated with myeloperoxidase (MPO) and NADH in citrate buffer (pH 4.5), o-, m-, and p-tyrosines were identified as hydroxylated products. Citric Acid 72-79 myeloperoxidase Homo sapiens 38-53