PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8912928-1 1996 Dihydropyrimidine dehydrogenase (DPD), the initial and rate-limiting enzyme in pyrimidine catabolism, has recently been purified to homogeneity from several species. pyrimidine 7-17 dihydropyrimidine dehydrogenase Bos taurus 33-36