PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 26037113-2 2015 This study was conducted based on a previous work, which showed that a single nucleotide polymorphism (SNP) at position 158 (val158met) in COMT, resulted in 40 % lower COMT activity. val158met 125-134 catechol-O-methyltransferase Homo sapiens 139-143 26037113-2 2015 This study was conducted based on a previous work, which showed that a single nucleotide polymorphism (SNP) at position 158 (val158met) in COMT, resulted in 40 % lower COMT activity. val158met 125-134 catechol-O-methyltransferase Homo sapiens 168-172