PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 20564560-8 2010 Furthermore, the ability to produce L-NNA from D-NNA-corresponding alpha-keto acids (N(G)-nitroguanidino-2-oxopentanoic acid) produced by porcine kidney-derived DAO (pkDAO) was also studied in the DAO inhibitor-pretreated rats. alpha-keto acids 67-83 D-amino-acid oxidase Rattus norvegicus 168-171