PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22551521-9 2012 In S-adenosyl methionine- and GSH-supplemented human S9 incubations, M1-1 formation decreased by 80% but increased after tolcapone-inhibited catechol-O-methyltransferase (COMT) activity. Methionine 14-24 catechol-O-methyltransferase Homo sapiens 171-175