PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 23570516-1 2013 CONTEXT: A steroidal alkaloid, 4-acetoxy-plakinamine B (4APB), is a recently discovered marine natural product with inhibitory effect against acetylcholinesterase (AChE), but its mechanism of interaction with the enzyme remains to be elucidated. Alkaloids 21-29 acetylcholinesterase (Cartwright blood group) Homo sapiens 142-162 23570516-1 2013 CONTEXT: A steroidal alkaloid, 4-acetoxy-plakinamine B (4APB), is a recently discovered marine natural product with inhibitory effect against acetylcholinesterase (AChE), but its mechanism of interaction with the enzyme remains to be elucidated. Alkaloids 21-29 acetylcholinesterase (Cartwright blood group) Homo sapiens 164-168