PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1848292-4 1991 Structure-activity relationship studies indicated that while N-1,N-2-unsubstituted and N-1-substituted derivatives are orally inactive, N-2-alkyl derivatives are orally active and inhibit both 5-LPO and CO. n-2-alkyl 136-145 lactoperoxidase Canis lupus familiaris 195-198