PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10347238-1 1999 Torpedo acetylcholinesterase is irreversibly inactivated by modifying a buried free cysteine, Cys231, with sulfhydryl reagents. Cysteine 84-92 acetylcholinesterase (Cartwright blood group) Homo sapiens 8-28