PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1263131-1 1976 N-acetylprocainamide (NAPA), a major metabolite of procainamide (PA) in man, has been reported recently to be biologically active. Acecainide 0-20 NSF attachment protein alpha Homo sapiens 22-26