PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22408623-1 2012 Bilirubin-IX-alpha (BR) is the final product of heme metabolism through the heme oxygenase/biliverdin reductase (HO/BVR) system. Heme 48-52 biliverdin reductase A Homo sapiens 113-119