PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 20097249-6 2010 In vitro studies were performed using previously developed cell lines which overexpress hCES1 with both p-nitrophenyl acetate and d-MPH serving as known substrates. 4-nitrophenyl acetate 104-125 carboxylesterase 1 Homo sapiens 88-93