PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21541217-2 2011 METHODS: N4-AMT was synthesized by reacting N4-oxalate and 3-bromopropyl AMT (N-BOC, ethyl ester). ethyl ester 85-96 aminomethyltransferase Rattus norvegicus 12-15 21541217-2 2011 METHODS: N4-AMT was synthesized by reacting N4-oxalate and 3-bromopropyl AMT (N-BOC, ethyl ester). ethyl ester 85-96 aminomethyltransferase Rattus norvegicus 73-76