PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 24772329-6 2014 Here, we show that apoptosis in human colon carcinoma cells induced by the mitochondrial respiratory chain complex III inhibition can be prevented by supplementation with uridine or orotate (products of the reaction catalyzed by DHODH) rather than with dihydroorotate (a DHODH substrate). Uridine 171-178 dihydroorotate dehydrogenase (quinone) Homo sapiens 271-276