PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8145739-0 1994 Role of tyrosine 337 in the binding of huperzine A to the active site of human acetylcholinesterase. Tyrosine 8-16 acetylcholinesterase (Cartwright blood group) Homo sapiens 79-99